[med-svn] [wgsim] 01/01: Imported Upstream version 0.3.1-r13

Kevin Murray daube-guest at moszumanska.debian.org
Sun Jul 5 05:41:33 UTC 2015


This is an automated email from the git hooks/post-receive script.

daube-guest pushed a commit to branch master
in repository wgsim.

commit e33dee6300feb5ab2c5c4cbf9f6d13767cfcfba1
Author: Kevin Murray <spam at kdmurray.id.au>
Date:   Sat Jul 4 20:09:58 2015 +1000

    Imported Upstream version 0.3.1-r13
---
 .gitignore    |   1 +
 README        |  93 +++++++++++++
 kseq.h        | 225 ++++++++++++++++++++++++++++++
 wgsim.c       | 437 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 wgsim_eval.pl | 294 +++++++++++++++++++++++++++++++++++++++
 5 files changed, 1050 insertions(+)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a01ee28
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.*.swp
diff --git a/README b/README
new file mode 100644
index 0000000..3b3f105
--- /dev/null
+++ b/README
@@ -0,0 +1,93 @@
+Introduction
+============
+
+Wgsim is a small tool for simulating sequence reads from a reference genome.
+It is able to simulate diploid genomes with SNPs and insertion/deletion (INDEL)
+polymorphisms, and simulate reads with uniform substitution sequencing errors.
+It does not generate INDEL sequencing errors, but this can be partly
+compensated by simulating INDEL polymorphisms.
+
+Wgsim outputs the simulated polymorphisms, and writes the true read coordinates
+as well as the number of polymorphisms and sequencing errors in read names.
+One can evaluate the accuracy of a mapper or a SNP caller with wgsim_eval.pl
+that comes with the package.
+
+
+Compilation
+===========
+
+gcc -g -O2 -Wall -o wgsim wgsim.c -lz -lm
+
+
+History
+=======
+
+Wgsim was modified from MAQ's read simulator by dropping dependencies to other
+source codes in the MAQ package and incorporating patches from Colin Hercus
+which allow to simulate INDELs longer than 1bp. Wgsim was originally released
+in the SAMtools software package. I forked it out in 2011 as a standalone
+project. A few improvements were also added in this course.
+
+
+Evaluation
+==========
+
+Simulation and evaluation
+-------------------------
+
+The command line for simulation:
+
+  wgsim -Nxxx -1yyy -d0 -S11 -e0 -rzzz hs37m.fa yyy-zzz.fq /dev/null
+
+where yyy is the read length, zzz is the error rate and $xxx * $yyy = 10000000.
+By default, 15% of polymorphisms are INDELs and their lengths are drawn from a
+geometric distribution with density 0.7*0.3^{l-1}.
+
+The command line for evaluation:
+
+  wgsim_eval.pl unique aln.sam | wgsim_eval.pl alneval -g 20
+
+The '-g' option may be changed with mappers.
+
+
+System
+------
+
+GCC: 4.1.2
+CPU: AMD Opteron 8350 @ 2.0GHz
+Mem: 128GB
+
+
+Results
+-------
+
+==================================================================================================================
+                          100bp              200bp              500bp              1000bp            10000bp
+                   ------------------  -----------------  -----------------  -----------------  -----------------
+ Program  Metrics     2%    5%   10%     2%    5%   10%     2%    5%   10%     2%    5%   10%     2%    5%   10%
+------------------------------------------------------------------------------------------------------------------
+            CPU      249   198   136    325   262   163    332   243   232    320   235   215    235   197   189
+ BWA-SW     Q20%    85.1  63.6  21.4   93.7  88.9  53.5   96.4  95.7  89.2   96.6  96.2  95.1   97.7  98.3  97.7
+            err%    0.01  0.06  0.20   0.00  0.01  0.14   0.00  0.01  0.01   0.00  0.00  0.01   0.00  0.00  0.00
+            one%    94.6  77.4  35.7   97.5  95.1  67.6   98.6  98.5  93.4   99.0  98.9  98.3   99.7  99.8  99.7
+------------------------------------------------------------------------------------------------------------------
+            CPU                                            302   484  1060    330   352   607    381   480   919
+ AGILE      Q20%                                          98.6  98.4  98.4   98.4  98.4  98.6   98.2  98.6  99.3
+            err%                                          0.66  0.69  2.31   0.34  0.40  0.70   0.10  0.00  0.20
+            one%                                           100  99.4     0    100   100   100    100   100   100
+==================================================================================================================
+
+1) AGILE throws "Floating point exception" halfway for 100/200bp reads.  The
+   default output is supposed to be PSL, but actually has an additional "score"
+   column. AGILE is reportedly faster than BWA-SW for 1000bp reads. It is
+   slower here possibly because of suboptimal command line options.
+
+2) Gassst uses over 27GB memory in 20 minutes. The memory then quickly
+   increases to over 40GB. It gets killed.
+
+3) Lastz complains: "FAILURE: bad fasta character in hs37m.fa ...".
+
+4) Pash only gives 'unique mapping'. Its unique mapping is better than BWA-SW's
+   Q1 mapiping. It is very slow, though, possibly because of suboptimal
+   options.
+
diff --git a/kseq.h b/kseq.h
new file mode 100644
index 0000000..5ba985e
--- /dev/null
+++ b/kseq.h
@@ -0,0 +1,225 @@
+/* The MIT License
+
+   Copyright (c) 2008, 2009 Attractive Chaos <attractor at live.co.uk>
+
+   Permission is hereby granted, free of charge, to any person obtaining
+   a copy of this software and associated documentation files (the
+   "Software"), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to
+   permit persons to whom the Software is furnished to do so, subject to
+   the following conditions:
+
+   The above copyright notice and this permission notice shall be
+   included in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+   SOFTWARE.
+*/
+
+/*
+  2009-07-16 (lh3): in kstream_t, change "char*" to "unsigned char*"
+ */
+
+/* Last Modified: 12APR2009 */
+
+#ifndef AC_KSEQ_H
+#define AC_KSEQ_H
+
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define KS_SEP_SPACE 0 // isspace(): \t, \n, \v, \f, \r
+#define KS_SEP_TAB   1 // isspace() && !' '
+#define KS_SEP_MAX   1
+
+#define __KS_TYPE(type_t)						\
+	typedef struct __kstream_t {				\
+		unsigned char *buf;						\
+		int begin, end, is_eof;					\
+		type_t f;								\
+	} kstream_t;
+
+#define ks_eof(ks) ((ks)->is_eof && (ks)->begin >= (ks)->end)
+#define ks_rewind(ks) ((ks)->is_eof = (ks)->begin = (ks)->end = 0)
+
+#define __KS_BASIC(type_t, __bufsize)								\
+	static inline kstream_t *ks_init(type_t f)						\
+	{																\
+		kstream_t *ks = (kstream_t*)calloc(1, sizeof(kstream_t));	\
+		ks->f = f;													\
+		ks->buf = malloc(__bufsize);								\
+		return ks;													\
+	}																\
+	static inline void ks_destroy(kstream_t *ks)					\
+	{																\
+		if (ks) {													\
+			free(ks->buf);											\
+			free(ks);												\
+		}															\
+	}
+
+#define __KS_GETC(__read, __bufsize)						\
+	static inline int ks_getc(kstream_t *ks)				\
+	{														\
+		if (ks->is_eof && ks->begin >= ks->end) return -1;	\
+		if (ks->begin >= ks->end) {							\
+			ks->begin = 0;									\
+			ks->end = __read(ks->f, ks->buf, __bufsize);	\
+			if (ks->end < __bufsize) ks->is_eof = 1;		\
+			if (ks->end == 0) return -1;					\
+		}													\
+		return (int)ks->buf[ks->begin++];					\
+	}
+
+#ifndef KSTRING_T
+#define KSTRING_T kstring_t
+typedef struct __kstring_t {
+	size_t l, m;
+	char *s;
+} kstring_t;
+#endif
+
+#ifndef kroundup32
+#define kroundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
+#endif
+
+#define __KS_GETUNTIL(__read, __bufsize)								\
+	static int ks_getuntil(kstream_t *ks, int delimiter, kstring_t *str, int *dret) \
+	{																	\
+		if (dret) *dret = 0;											\
+		str->l = 0;														\
+		if (ks->begin >= ks->end && ks->is_eof) return -1;				\
+		for (;;) {														\
+			int i;														\
+			if (ks->begin >= ks->end) {									\
+				if (!ks->is_eof) {										\
+					ks->begin = 0;										\
+					ks->end = __read(ks->f, ks->buf, __bufsize);		\
+					if (ks->end < __bufsize) ks->is_eof = 1;			\
+					if (ks->end == 0) break;							\
+				} else break;											\
+			}															\
+			if (delimiter > KS_SEP_MAX) {								\
+				for (i = ks->begin; i < ks->end; ++i)					\
+					if (ks->buf[i] == delimiter) break;					\
+			} else if (delimiter == KS_SEP_SPACE) {						\
+				for (i = ks->begin; i < ks->end; ++i)					\
+					if (isspace(ks->buf[i])) break;						\
+			} else if (delimiter == KS_SEP_TAB) {						\
+				for (i = ks->begin; i < ks->end; ++i)					\
+					if (isspace(ks->buf[i]) && ks->buf[i] != ' ') break; \
+			} else i = 0; /* never come to here! */						\
+			if (str->m - str->l < i - ks->begin + 1) {					\
+				str->m = str->l + (i - ks->begin) + 1;					\
+				kroundup32(str->m);										\
+				str->s = (char*)realloc(str->s, str->m);				\
+			}															\
+			memcpy(str->s + str->l, ks->buf + ks->begin, i - ks->begin); \
+			str->l = str->l + (i - ks->begin);							\
+			ks->begin = i + 1;											\
+			if (i < ks->end) {											\
+				if (dret) *dret = ks->buf[i];							\
+				break;													\
+			}															\
+		}																\
+		if (str->l == 0) {												\
+			str->m = 1;													\
+			str->s = (char*)calloc(1, 1);								\
+		}																\
+		str->s[str->l] = '\0';											\
+		return str->l;													\
+	}
+
+#define KSTREAM_INIT(type_t, __read, __bufsize) \
+	__KS_TYPE(type_t)							\
+	__KS_BASIC(type_t, __bufsize)				\
+	__KS_GETC(__read, __bufsize)				\
+	__KS_GETUNTIL(__read, __bufsize)
+
+#define __KSEQ_BASIC(type_t)											\
+	static inline kseq_t *kseq_init(type_t fd)							\
+	{																	\
+		kseq_t *s = (kseq_t*)calloc(1, sizeof(kseq_t));					\
+		s->f = ks_init(fd);												\
+		return s;														\
+	}																	\
+	static inline void kseq_rewind(kseq_t *ks)							\
+	{																	\
+		ks->last_char = 0;												\
+		ks->f->is_eof = ks->f->begin = ks->f->end = 0;					\
+	}																	\
+	static inline void kseq_destroy(kseq_t *ks)							\
+	{																	\
+		if (!ks) return;												\
+		free(ks->name.s); free(ks->comment.s); free(ks->seq.s);	free(ks->qual.s); \
+		ks_destroy(ks->f);												\
+		free(ks);														\
+	}
+
+/* Return value:
+   >=0  length of the sequence (normal)
+   -1   end-of-file
+   -2   truncated quality string
+ */
+#define __KSEQ_READ														\
+	static int kseq_read(kseq_t *seq)									\
+	{																	\
+		int c;															\
+		kstream_t *ks = seq->f;											\
+		if (seq->last_char == 0) { /* then jump to the next header line */ \
+			while ((c = ks_getc(ks)) != -1 && c != '>' && c != '@');	\
+			if (c == -1) return -1; /* end of file */					\
+			seq->last_char = c;											\
+		} /* the first header char has been read */						\
+		seq->comment.l = seq->seq.l = seq->qual.l = 0;					\
+		if (ks_getuntil(ks, 0, &seq->name, &c) < 0) return -1;			\
+		if (c != '\n') ks_getuntil(ks, '\n', &seq->comment, 0);			\
+		while ((c = ks_getc(ks)) != -1 && c != '>' && c != '+' && c != '@') { \
+			if (isgraph(c)) { /* printable non-space character */		\
+				if (seq->seq.l + 1 >= seq->seq.m) { /* double the memory */ \
+					seq->seq.m = seq->seq.l + 2;						\
+					kroundup32(seq->seq.m); /* rounded to next closest 2^k */ \
+					seq->seq.s = (char*)realloc(seq->seq.s, seq->seq.m); \
+				}														\
+				seq->seq.s[seq->seq.l++] = (char)c;						\
+			}															\
+		}																\
+		if (c == '>' || c == '@') seq->last_char = c; /* the first header char has been read */	\
+		seq->seq.s[seq->seq.l] = 0;	/* null terminated string */		\
+		if (c != '+') return seq->seq.l; /* FASTA */					\
+		if (seq->qual.m < seq->seq.m) {	/* allocate enough memory */	\
+			seq->qual.m = seq->seq.m;									\
+			seq->qual.s = (char*)realloc(seq->qual.s, seq->qual.m);		\
+		}																\
+		while ((c = ks_getc(ks)) != -1 && c != '\n'); /* skip the rest of '+' line */ \
+		if (c == -1) return -2; /* we should not stop here */			\
+		while ((c = ks_getc(ks)) != -1 && seq->qual.l < seq->seq.l)		\
+			if (c >= 33 && c <= 127) seq->qual.s[seq->qual.l++] = (unsigned char)c;	\
+		seq->qual.s[seq->qual.l] = 0; /* null terminated string */		\
+		seq->last_char = 0;	/* we have not come to the next header line */ \
+		if (seq->seq.l != seq->qual.l) return -2; /* qual string is shorter than seq string */ \
+		return seq->seq.l;												\
+	}
+
+#define __KSEQ_TYPE(type_t)						\
+	typedef struct {							\
+		kstring_t name, comment, seq, qual;		\
+		int last_char;							\
+		kstream_t *f;							\
+	} kseq_t;
+
+#define KSEQ_INIT(type_t, __read)				\
+	KSTREAM_INIT(type_t, __read, 4096)			\
+	__KSEQ_TYPE(type_t)							\
+	__KSEQ_BASIC(type_t)						\
+	__KSEQ_READ
+
+#endif
diff --git a/wgsim.c b/wgsim.c
new file mode 100644
index 0000000..5c82192
--- /dev/null
+++ b/wgsim.c
@@ -0,0 +1,437 @@
+/* The MIT License
+
+   Copyright (c) 2008 Genome Research Ltd (GRL).
+                 2011 Heng Li <lh3 at live.co.uk>
+
+   Permission is hereby granted, free of charge, to any person obtaining
+   a copy of this software and associated documentation files (the
+   "Software"), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to
+   permit persons to whom the Software is furnished to do so, subject to
+   the following conditions:
+
+   The above copyright notice and this permission notice shall be
+   included in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+   SOFTWARE.
+*/
+
+/* This program is separated from maq's read simulator with Colin
+ * Hercus' modification to allow longer indels. */
+
+#include <stdlib.h>
+#include <math.h>
+#include <time.h>
+#include <assert.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <ctype.h>
+#include <string.h>
+#include <zlib.h>
+#include "kseq.h"
+KSEQ_INIT(gzFile, gzread)
+
+#define PACKAGE_VERSION "0.3.1-r13"
+
+const uint8_t nst_nt4_table[256] = {
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 5 /*'-'*/, 4, 4,
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 0, 4, 1,  4, 4, 4, 2,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  3, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 0, 4, 1,  4, 4, 4, 2,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  3, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4, 
+	4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4,  4, 4, 4, 4
+};
+
+/* Simple normal random number generator, copied from genran.c */
+
+double ran_normal()
+{ 
+	static int iset = 0; 
+	static double gset; 
+	double fac, rsq, v1, v2; 
+	if (iset == 0) {
+		do { 
+			v1 = 2.0 * drand48() - 1.0;
+			v2 = 2.0 * drand48() - 1.0; 
+			rsq = v1 * v1 + v2 * v2;
+		} while (rsq >= 1.0 || rsq == 0.0);
+		fac = sqrt(-2.0 * log(rsq) / rsq); 
+		gset = v1 * fac; 
+		iset = 1;
+		return v2 * fac;
+	} else {
+		iset = 0;
+		return gset;
+	}
+}
+
+/* wgsim */
+
+enum muttype_t {NOCHANGE = 0, INSERT = 0x1000, SUBSTITUTE = 0xe000, DELETE = 0xf000};
+typedef unsigned short mut_t;
+static mut_t mutmsk = (mut_t)0xf000;
+
+typedef struct {
+	int l, m; /* length and maximum buffer size */
+	mut_t *s; /* sequence */
+} mutseq_t;
+
+static double ERR_RATE = 0.02;
+static double MUT_RATE = 0.001;
+static double INDEL_FRAC = 0.15;
+static double INDEL_EXTEND = 0.3;
+static double MAX_N_RATIO = 0.05;
+
+void wgsim_mut_diref(const kseq_t *ks, int is_hap, mutseq_t *hap1, mutseq_t *hap2)
+{
+	int i, deleting = 0;
+	mutseq_t *ret[2];
+
+	ret[0] = hap1; ret[1] = hap2;
+	ret[0]->l = ks->seq.l; ret[1]->l = ks->seq.l;
+	ret[0]->m = ks->seq.m; ret[1]->m = ks->seq.m;
+	ret[0]->s = (mut_t *)calloc(ks->seq.m, sizeof(mut_t));
+	ret[1]->s = (mut_t *)calloc(ks->seq.m, sizeof(mut_t));
+	for (i = 0; i != ks->seq.l; ++i) {
+		int c;
+		c = ret[0]->s[i] = ret[1]->s[i] = (mut_t)nst_nt4_table[(int)ks->seq.s[i]];
+        if (deleting) {
+            if (drand48() < INDEL_EXTEND) {
+                if (deleting & 1) ret[0]->s[i] |= DELETE;
+                if (deleting & 2) ret[1]->s[i] |= DELETE;
+                continue;
+            } else deleting = 0;
+        }
+		if (c < 4 && drand48() < MUT_RATE) { // mutation
+			if (drand48() >= INDEL_FRAC) { // substitution
+				double r = drand48();
+				c = (c + (int)(r * 3.0 + 1)) & 3;
+				if (is_hap || drand48() < 0.333333) { // hom
+					ret[0]->s[i] = ret[1]->s[i] = SUBSTITUTE|c;
+				} else { // het
+					ret[drand48()<0.5?0:1]->s[i] = SUBSTITUTE|c;
+				}
+			} else { // indel
+				if (drand48() < 0.5) { // deletion
+					if (is_hap || drand48() < 0.333333) { // hom-del
+						ret[0]->s[i] = ret[1]->s[i] = DELETE;
+                        deleting = 3;
+					} else { // het-del
+                        deleting = drand48()<0.5?1:2;
+						ret[deleting-1]->s[i] = DELETE;
+					}
+				} else { // insertion
+                    int num_ins = 0, ins = 0;
+                    do {
+                        num_ins++;
+                        ins = (ins << 2) | (int)(drand48() * 4.0);
+                    } while (num_ins < 4 && drand48() < INDEL_EXTEND);
+
+					if (is_hap || drand48() < 0.333333) { // hom-ins
+						ret[0]->s[i] = ret[1]->s[i] = (num_ins << 12) | (ins << 4) | c;
+					} else { // het-ins
+						ret[drand48()<0.5?0:1]->s[i] = (num_ins << 12) | (ins << 4) | c;
+					}
+				}
+			}
+		}
+	}
+}
+void wgsim_print_mutref(const char *name, const kseq_t *ks, mutseq_t *hap1, mutseq_t *hap2)
+{
+	int i, j = 0; // j keeps the end of the last deletion
+	for (i = 0; i != ks->seq.l; ++i) {
+		int c[3];
+		c[0] = nst_nt4_table[(int)ks->seq.s[i]];
+		c[1] = hap1->s[i]; c[2] = hap2->s[i];
+		if (c[0] >= 4) continue;
+		if ((c[1] & mutmsk) != NOCHANGE || (c[2] & mutmsk) != NOCHANGE) {
+			if (c[1] == c[2]) { // hom
+				if ((c[1]&mutmsk) == SUBSTITUTE) { // substitution
+					printf("%s\t%d\t%c\t%c\t-\n", name, i+1, "ACGTN"[c[0]], "ACGTN"[c[1]&0xf]);
+				} else if ((c[1]&mutmsk) == DELETE) { // del
+					if (i >= j) {
+						printf("%s\t%d\t", name, i+1);
+						for (j = i; j < ks->seq.l && hap1->s[j] == hap2->s[j] && (hap1->s[j]&mutmsk) == DELETE; ++j)
+							putchar("ACGTN"[nst_nt4_table[(int)ks->seq.s[j]]]);
+						printf("\t-\t-\n");
+					}
+				} else if (((c[1] & mutmsk) >> 12) <= 4) { // ins
+					printf("%s\t%d\t-\t", name, i+1);
+                    int n = (c[1]&mutmsk) >> 12, ins = c[1] >> 4;
+                    while (n > 0) {
+                        putchar("ACGTN"[ins & 0x3]);
+						ins >>= 2;
+                        n--;
+                    }
+                    printf("\t-\n");
+				} // else: deleted base in a long deletion
+			} else { // het
+				if ((c[1]&mutmsk) == SUBSTITUTE || (c[2]&mutmsk) == SUBSTITUTE) { // substitution
+					printf("%s\t%d\t%c\t%c\t+\n", name, i+1, "ACGTN"[c[0]], "XACMGRSVTWYHKDBN"[1<<(c[1]&0x3)|1<<(c[2]&0x3)]);
+				} else if ((c[1]&mutmsk) == DELETE) {
+					if (i >= j) {
+						printf("%s\t%d\t", name, i+1);
+						for (j = i; j < ks->seq.l && hap1->s[j] != hap2->s[j] && (hap1->s[j]&mutmsk) == DELETE; ++j)
+							putchar("ACGTN"[nst_nt4_table[(int)ks->seq.s[j]]]);
+						printf("\t-\t-\n");
+					}
+				} else if ((c[2]&mutmsk) == DELETE) {
+					if (i >= j) {
+						printf("%s\t%d\t", name, i+1);
+						for (j = i; j < ks->seq.l && hap1->s[j] != hap2->s[j] && (hap2->s[j]&mutmsk) == DELETE; ++j)
+							putchar("ACGTN"[nst_nt4_table[(int)ks->seq.s[j]]]);
+						printf("\t-\t-\n");
+					}
+				} else if (((c[1] & mutmsk) >> 12) <= 4 && ((c[1] & mutmsk) >> 12) > 0) { // ins1
+					printf("%s\t%d\t-\t", name, i+1);
+                    int n = (c[1]&mutmsk) >> 12, ins = c[1] >> 4;
+                    while (n > 0) {
+                        putchar("ACGTN"[ins & 0x3]);
+						ins >>= 2;
+                        n--;
+                    }
+                    printf("\t+\n");
+				} else if (((c[2] & mutmsk) >> 12) <= 4 || ((c[2] & mutmsk) >> 12) > 0) { // ins2
+					printf("%s\t%d\t-\t", name, i+1);
+                    int n = (c[2]&mutmsk) >> 12, ins = c[2] >> 4;
+                    while (n > 0) {
+                        putchar("ACGTN"[ins & 0x3]);
+                        ins >>= 2;
+                        n--;
+                    }
+                    printf("\t+\n");
+				} // else: deleted base in a long deletion
+			}
+		}
+	}
+}
+
+void wgsim_core(FILE *fpout1, FILE *fpout2, const char *fn, int is_hap, uint64_t N, int dist, int std_dev, int size_l, int size_r)
+{
+	kseq_t *ks;
+    mutseq_t rseq[2];
+	gzFile fp_fa;
+	uint64_t tot_len, ii;
+	int i, l, n_ref;
+	char *qstr;
+	int size[2], Q, max_size;
+	uint8_t *tmp_seq[2];
+    mut_t *target;
+
+	l = size_l > size_r? size_l : size_r;
+	qstr = (char*)calloc(l+1, 1);
+	tmp_seq[0] = (uint8_t*)calloc(l+2, 1);
+	tmp_seq[1] = (uint8_t*)calloc(l+2, 1);
+	size[0] = size_l; size[1] = size_r;
+	max_size = size_l > size_r? size_l : size_r;
+
+	Q = (ERR_RATE == 0.0)? 'I' : (int)(-10.0 * log(ERR_RATE) / log(10.0) + 0.499) + 33;
+
+	fp_fa = gzopen(fn, "r");
+	ks = kseq_init(fp_fa);
+	tot_len = n_ref = 0;
+	fprintf(stderr, "[%s] calculating the total length of the reference sequence...\n", __func__);
+	while ((l = kseq_read(ks)) >= 0) {
+		tot_len += l;
+		++n_ref;
+	}
+	fprintf(stderr, "[%s] %d sequences, total length: %llu\n", __func__, n_ref, (long long)tot_len);
+	kseq_destroy(ks);
+	gzclose(fp_fa);
+
+	fp_fa = gzopen(fn, "r");
+	ks = kseq_init(fp_fa);
+	while ((l = kseq_read(ks)) >= 0) {
+		uint64_t n_pairs = (uint64_t)((long double)l / tot_len * N + 0.5);
+		if (l < dist + 3 * std_dev) {
+			fprintf(stderr, "[%s] skip sequence '%s' as it is shorter than %d!\n", __func__, ks->name.s, dist + 3 * std_dev);
+			continue;
+		}
+
+		// generate mutations and print them out
+		wgsim_mut_diref(ks, is_hap, rseq, rseq+1);
+		wgsim_print_mutref(ks->name.s, ks, rseq, rseq+1);
+
+		for (ii = 0; ii != n_pairs; ++ii) { // the core loop
+			double ran;
+			int d, pos, s[2], is_flip = 0;
+			int n_sub[2], n_indel[2], n_err[2], ext_coor[2], j, k;
+			FILE *fpo[2];
+
+			do { // avoid boundary failure
+				ran = ran_normal();
+				ran = ran * std_dev + dist;
+				d = (int)(ran + 0.5);
+				d = d > max_size? d : max_size;
+				pos = (int)((l - d + 1) * drand48());
+			} while (pos < 0 || pos >= ks->seq.l || pos + d - 1 >= ks->seq.l);
+
+			// flip or not
+			if (drand48() < 0.5) {
+				fpo[0] = fpout1; fpo[1] = fpout2;
+				s[0] = size[0]; s[1] = size[1];
+			} else {
+				fpo[1] = fpout1; fpo[0] = fpout2;
+				s[1] = size[0]; s[0] = size[1];
+				is_flip = 1;
+			}
+
+			// generate the read sequences
+			target = rseq[drand48()<0.5?0:1].s; // haplotype from which the reads are generated
+			n_sub[0] = n_sub[1] = n_indel[0] = n_indel[1] = n_err[0] = n_err[1] = 0;
+
+#define __gen_read(x, start, iter) do {									\
+				for (i = (start), k = 0, ext_coor[x] = -10; i >= 0 && i < ks->seq.l && k < s[x]; iter) {	\
+					int c = target[i], mut_type = c & mutmsk;			\
+					if (ext_coor[x] < 0) {								\
+						if (mut_type != NOCHANGE && mut_type != SUBSTITUTE) continue; \
+						ext_coor[x] = i;								\
+					}													\
+					if (mut_type == DELETE) ++n_indel[x];				\
+					else if (mut_type == NOCHANGE || mut_type == SUBSTITUTE) { \
+						tmp_seq[x][k++] = c & 0xf;						\
+						if (mut_type == SUBSTITUTE) ++n_sub[x];			\
+					} else {											\
+						int n, ins;										\
+						++n_indel[x];									\
+						tmp_seq[x][k++] = c & 0xf;						\
+						for (n = mut_type>>12, ins = c>>4; n > 0 && k < s[x]; --n, ins >>= 2) \
+							tmp_seq[x][k++] = ins & 0x3;				\
+					}													\
+				}														\
+				if (k != s[x]) ext_coor[x] = -10;						\
+			} while (0)
+
+			__gen_read(0, pos, ++i);
+			__gen_read(1, pos + d - 1, --i);
+			for (k = 0; k < s[1]; ++k) tmp_seq[1][k] = tmp_seq[1][k] < 4? 3 - tmp_seq[1][k] : 4; // complement
+			if (ext_coor[0] < 0 || ext_coor[1] < 0) { // fail to generate the read(s)
+				--ii;
+				continue;
+			}
+
+			// generate sequencing errors
+			for (j = 0; j < 2; ++j) {
+				int n_n = 0;
+				for (i = 0; i < s[j]; ++i) {
+					int c = tmp_seq[j][i];
+					if (c >= 4) { // actually c should be never larger than 4 if everything is correct
+						c = 4;
+						++n_n;
+					} else if (drand48() < ERR_RATE) {
+						// c = (c + (int)(drand48() * 3.0 + 1)) & 3; // random sequencing errors
+						c = (c + 1) & 3; // recurrent sequencing errors
+						++n_err[j];
+					}
+					tmp_seq[j][i] = c;
+				}
+				if ((double)n_n / s[j] > MAX_N_RATIO) break;
+			}
+			if (j < 2) { // too many ambiguous bases on one of the reads
+				--ii;
+				continue;
+			}
+
+			// print
+			for (j = 0; j < 2; ++j) {
+				for (i = 0; i < s[j]; ++i) qstr[i] = Q;
+				qstr[i] = 0;
+				fprintf(fpo[j], "@%s_%u_%u_%d:%d:%d_%d:%d:%d_%llx/%d\n", ks->name.s, ext_coor[0]+1, ext_coor[1]+1,
+						n_err[0], n_sub[0], n_indel[0], n_err[1], n_sub[1], n_indel[1],
+						(long long)ii, j==0? is_flip+1 : 2-is_flip);
+				for (i = 0; i < s[j]; ++i)
+					fputc("ACGTN"[(int)tmp_seq[j][i]], fpo[j]);
+				fprintf(fpo[j], "\n+\n%s\n", qstr);
+			}
+		}
+		free(rseq[0].s); free(rseq[1].s);
+	}
+	kseq_destroy(ks);
+	gzclose(fp_fa);
+	free(qstr);
+	free(tmp_seq[0]); free(tmp_seq[1]);
+}
+
+static int simu_usage()
+{
+	fprintf(stderr, "\n");
+	fprintf(stderr, "Program: wgsim (short read simulator)\n");
+	fprintf(stderr, "Version: %s\n", PACKAGE_VERSION);
+	fprintf(stderr, "Contact: Heng Li <lh3 at sanger.ac.uk>\n\n");
+	fprintf(stderr, "Usage:   wgsim [options] <in.ref.fa> <out.read1.fq> <out.read2.fq>\n\n");
+	fprintf(stderr, "Options: -e FLOAT      base error rate [%.3f]\n", ERR_RATE);
+	fprintf(stderr, "         -d INT        outer distance between the two ends [500]\n");
+	fprintf(stderr, "         -s INT        standard deviation [50]\n");
+	fprintf(stderr, "         -N INT        number of read pairs [1000000]\n");
+	fprintf(stderr, "         -1 INT        length of the first read [70]\n");
+	fprintf(stderr, "         -2 INT        length of the second read [70]\n");
+	fprintf(stderr, "         -r FLOAT      rate of mutations [%.4f]\n", MUT_RATE);
+	fprintf(stderr, "         -R FLOAT      fraction of indels [%.2f]\n", INDEL_FRAC);
+	fprintf(stderr, "         -X FLOAT      probability an indel is extended [%.2f]\n", INDEL_EXTEND);
+	fprintf(stderr, "         -S INT        seed for random generator [-1]\n");
+	fprintf(stderr, "         -A FLOAT      disgard if the fraction of ambiguous bases higher than FLOAT [%.2f]\n", MAX_N_RATIO);
+	fprintf(stderr, "         -h            haplotype mode\n");
+	fprintf(stderr, "\n");
+	return 1;
+}
+
+int main(int argc, char *argv[])
+{
+	int64_t N;
+	int dist, std_dev, c, size_l, size_r, is_hap = 0;
+	FILE *fpout1, *fpout2;
+	int seed = -1;
+
+	N = 1000000; dist = 500; std_dev = 50;
+	size_l = size_r = 70;
+	while ((c = getopt(argc, argv, "e:d:s:N:1:2:r:R:hX:S:A:")) >= 0) {
+		switch (c) {
+		case 'd': dist = atoi(optarg); break;
+		case 's': std_dev = atoi(optarg); break;
+		case 'N': N = atoi(optarg); break;
+		case '1': size_l = atoi(optarg); break;
+		case '2': size_r = atoi(optarg); break;
+		case 'e': ERR_RATE = atof(optarg); break;
+		case 'r': MUT_RATE = atof(optarg); break;
+		case 'R': INDEL_FRAC = atof(optarg); break;
+		case 'X': INDEL_EXTEND = atof(optarg); break;
+		case 'A': MAX_N_RATIO = atof(optarg); break;
+		case 'S': seed = atoi(optarg); break;
+		case 'h': is_hap = 1; break;
+		}
+	}
+	if (argc - optind < 3) return simu_usage();
+	fpout1 = fopen(argv[optind+1], "w");
+	fpout2 = fopen(argv[optind+2], "w");
+	if (!fpout1 || !fpout2) {
+		fprintf(stderr, "[wgsim] file open error\n");
+		return 1;
+	}
+	if (seed <= 0) seed = time(0)&0x7fffffff;
+	fprintf(stderr, "[wgsim] seed = %d\n", seed);
+	srand48(seed);
+	wgsim_core(fpout1, fpout2, argv[optind], is_hap, N, dist, std_dev, size_l, size_r);
+
+	fclose(fpout1); fclose(fpout2);
+	return 0;
+}
diff --git a/wgsim_eval.pl b/wgsim_eval.pl
new file mode 100755
index 0000000..5342333
--- /dev/null
+++ b/wgsim_eval.pl
@@ -0,0 +1,294 @@
+#!/usr/bin/perl -w
+
+# Author: lh3
+
+use strict;
+use warnings;
+use Getopt::Std;
+
+die (qq/
+Usage:   wgsim_eval.pl <command> <arguments>
+
+Command: alneval       evaluate alignment in the SAM format
+         vareval       evaluate variant calls in the pileup format
+         unique        keep the top scoring hit in SAM
+         uniqcmp       compare two alignments without multiple hits
+\n/) if (@ARGV == 0);
+my $command = shift(@ARGV);
+if ($command eq 'alneval') {
+	&alneval;
+} elsif ($command eq 'vareval') {
+	&vareval;
+} elsif ($command eq 'unique') {
+	&unique;
+} elsif ($command eq 'uniqcmp') {
+	&uniqcmp;
+} else {
+	die("[wgsim_eval] unrecognized command.\n");
+}
+exit;
+
+sub alneval {
+	my %opts = (g=>20);
+	getopts('pag:', \%opts);
+	die(qq/
+Usage:   wgsim_eval.pl alneval [options] <in.sam>\n
+Options: -p        print wrong alignments
+         -g INT    correct if withint INT of the true coordinate
+\n/) if (@ARGV == 0 && -t STDIN);
+	my (@c0, @c1, %fnfp);
+	my ($max_q, $flag) = (0, 0);
+	my $gap = $opts{g};
+	$flag |= 1 if (defined $opts{p});
+	while (<>) {
+		next if (/^\@/);
+		my @t = split("\t");
+		next if (@t < 11);
+		my $line = $_;
+		my ($q, $is_correct, $chr, $left, $rght) = (int($t[4]/10), 1, $t[2], $t[3], $t[3]);
+		$max_q = $q if ($q > $max_q);
+		# right coordinate
+		$_ = $t[5]; s/(\d+)[MDN]/$rght+=$1,'x'/eg;
+		--$rght;
+		# correct for clipping
+		my ($left0, $rght0) = ($left, $rght);
+		$left -= $1 if (/^(\d+)[SH]/);
+		$rght += $1 if (/(\d+)[SH]$/);
+		$left0 -= $1 if (/(\d+)[SH]$/);
+		$rght0 += $1 if (/^(\d+)[SH]/);
+		# skip unmapped reads
+		next if (($t[1]&0x4) || $chr eq '*');
+		# parse read name and check
+		if ($t[0] =~ /^(\S+)_(\d+)_(\d+)_/) {
+			if ($1 ne $chr) { # different chr
+				$is_correct = 0;
+			} else {
+				if ($t[1] & 0x10) { # reverse
+					$is_correct = 0 if (abs($3 - $rght) > $gap && abs($3 - $rght0) > $gap); # in case of indels that are close to the end of a reads
+				} else {
+					$is_correct = 0 if (abs($2 - $left) > $gap && abs($2 - $left0) > $gap);
+				}
+			}
+		} else {
+			warn("[wgsim_eval] read '$t[0]' was not generated by wgsim?\n");
+			next;
+		}
+		++$c0[$q];
+		++$c1[$q] unless ($is_correct);
+		@{$fnfp{$t[4]}} = (0, 0) unless (defined $fnfp{$t[4]});
+		++$fnfp{$t[4]}[0];
+		++$fnfp{$t[4]}[1] unless ($is_correct);
+		print STDERR $line if (($flag&1) && !$is_correct && $q > 0);
+	}
+	# print
+	my ($cc0, $cc1) = (0, 0);
+	if (!defined($opts{a})) {
+		for (my $i = $max_q; $i >= 0; --$i) {
+			$c0[$i] = 0 unless (defined $c0[$i]);
+			$c1[$i] = 0 unless (defined $c1[$i]);
+			$cc0 += $c0[$i]; $cc1 += $c1[$i];
+			printf("%.2dx %12d / %-12d  %12d  %.3e\n", $i, $c1[$i], $c0[$i], $cc0, $cc1/$cc0) if ($cc0);
+		}
+	} else {
+		for (reverse(sort {$a<=>$b} (keys %fnfp))) {
+			next if ($_ == 0);
+			$cc0 += $fnfp{$_}[0];
+			$cc1 += $fnfp{$_}[1];
+			print join("\t", $_, $cc0, $cc1), "\n";
+		}
+	}
+}
+
+sub vareval {
+	my %opts = (g=>10, Q=>200);
+	getopts('g:p', \%opts);
+	my $skip = $opts{g};
+	die("Usage: wgsim_eval.pl vareval [-g $opts{g}] <wgsim.snp> <pileup.flt>\n") if (@ARGV < 1);
+
+	my $is_print = defined($opts{p})? 1 : 0;
+
+	my ($fh, %snp, %indel);
+	# read simulated variants
+	open($fh, $ARGV[0]) || die;
+	while (<$fh>) {
+		my @t = split;
+		if (@t != 5 || $t[2] eq '-' || $t[3] eq '-') {
+			$indel{$t[0]}{$t[1]} = 1;
+		} else {
+			$snp{$t[0]}{$t[1]} = $t[3];
+		}
+	}
+	close($fh);
+
+	shift(@ARGV);
+	my (@cnt);
+	for my $i (0 .. 3) {
+		for my $j (0 .. $opts{Q}) {
+			$cnt[$i][$j] = 0;
+		}
+	}
+	while (<>) {
+		my @t = split;
+		my $q = $t[5];
+		next if ($t[2] eq $t[3]);
+		$q = $opts{Q} if ($q > $opts{Q});
+		if ($t[2] eq '*') {
+			my $hit = 0;
+			++$cnt[2][$q];
+			for my $i ($t[1] - $skip .. $t[1] + $skip) {
+				if (defined $indel{$t[0]}{$i}) {
+					$hit = 1; last;
+				}
+			}
+			++$cnt[3][$q] if ($hit == 0);
+			print STDERR $_ if ($hit == 0 && $is_print);
+		} else {
+			++$cnt[0][$q];
+			++$cnt[1][$q] unless (defined $snp{$t[0]}{$t[1]});
+			print STDERR $_ if (!defined($snp{$t[0]}{$t[1]}) && $is_print);
+		}
+	}
+
+	for (my $i = $opts{Q} - 1; $i >= 0; --$i) {
+		$cnt[$_][$i] += $cnt[$_][$i+1] for (0 .. 3);
+	}
+
+	for (my $i = $opts{Q}; $i >= 0; --$i) {
+		print join("\t", $i, $cnt[0][$i], $cnt[1][$i], $cnt[2][$i], $cnt[3][$i]), "\n";
+	}
+}
+
+sub unique {
+	# -f: parameter to recalute mapping quality
+	# -Q: do not recalculate mapping quality
+	# -a, -b, -q, -r: scoring system
+	my %opts = (f=>250.0, q=>5, r=>2, a=>1, b=>3);
+	getopts('Qf:q:r:a:b:m', \%opts);
+	die(qq/
+Usage:   wgsim_eval.pl unique [options] <in.sam>\n
+Options: -Q         recompuate mapping quality from multiple hits
+         -f FLOAT   mapQ=FLOAT*(best1-best2)\/best1 [opts{f}]
+         -a INT     matching score (when AS tag is absent) [$opts{a}]
+         -q INT     gap open penalty [$opts{q}]
+         -r INT     gap extension penalty [$opts{r}]
+\n/) if (@ARGV == 0 && -t STDIN);
+	my $last = '';
+	my $recal_Q = defined($opts{Q});
+	my $multi_only = defined($opts{m});
+	my @a;
+	while (<>) {
+		my $score = -1;
+		print $_ if (/^\@/);
+		$score = $1 if (/AS:i:(\d+)/);
+		my @t = split("\t");
+		next if (@t < 11);
+		if ($score < 0) { # AS tag is unavailable
+			my $cigar = $t[5];
+			my ($mm, $go, $ge) = (0, 0, 0);
+			$cigar =~ s/(\d+)[ID]/++$go,$ge+=$1/eg;
+			$cigar = $t[5];
+			$cigar =~ s/(\d+)M/$mm+=$1/eg;
+			$score = $mm * $opts{a} - $go * $opts{q} - $ge * $opts{r}; # no mismatches...
+		}
+		$score = 1 if ($score < 1);
+		if ($t[0] ne $last) {
+			&unique_aux(\@a, $opts{f}, $recal_Q, $multi_only) if (@a);
+			$last = $t[0];
+		}
+		push(@a, [$score, \@t]);
+	}
+	&unique_aux(\@a, $opts{f}, $recal_Q, $multi_only) if (@a);
+}
+
+sub unique_aux {
+	my ($a, $fac, $is_recal, $multi_only) = @_;
+	my ($max, $max2, $max_i) = (0, 0, -1);
+	for (my $i = 0; $i < @$a; ++$i) {
+		if ($a->[$i][0] > $max) {
+			$max2 = $max; $max = $a->[$i][0]; $max_i = $i;
+		} elsif ($a->[$i][0] > $max2) {
+			$max2 = $a->[$i][0];
+		}
+	}
+	if ($is_recal) {
+		if (!$multi_only || @$a > 1) {
+			my $q = int($fac * ($max - $max2) / $max + .499);
+			$q = 250 if ($q > 250);
+			$a->[$max_i][1][4] = $q < 250? $q : 250;
+		}
+	}
+	print join("\t", @{$a->[$max_i][1]});
+	@$a = ();
+}
+
+sub uniqcmp {
+  my %opts = (q=>20, s=>100, b=>4);
+  getopts('pq:s:b:', \%opts);
+  die(qq/
+Usage:   wgsim_eval.pl uniqcmp [options] <in1.sam> <in2.sam>\n
+Options: -q INT     confident mapping if mapping quality above INT [$opts{q}]
+         -s INT     same mapping if the distance below INT [$opts{s}]
+         -b INT     penalty for a difference [$opts{b}]
+\n/) if (@ARGV < 2);
+  my ($fh, %a);
+  warn("[uniqcmp] read the first file...\n");
+  &uniqcmp_aux($ARGV[0], \%a, 0, $opts{b});
+  warn("[uniqcmp] read the second file...\n");
+  &uniqcmp_aux($ARGV[1], \%a, 1, $opts{b});
+  warn("[uniqcmp] stats...\n");
+  my @cnt;
+  $cnt[$_] = 0 for (0..9);
+  for my $x (keys %a) {
+	my $p = $a{$x};
+	my $z;
+	if (defined($p->[0]) && defined($p->[1])) {
+	  $z = ($p->[0][0] == $p->[1][0] && $p->[0][1] eq $p->[1][1] && abs($p->[0][2] - $p->[1][2]) < $opts{s})? 0 : 1;
+	  if ($p->[0][3] >= $opts{q} && $p->[1][3] >= $opts{q}) {
+		++$cnt[$z*3+0];
+	  } elsif ($p->[0][3] >= $opts{q}) {
+		++$cnt[$z*3+1];
+	  } elsif ($p->[1][3] >= $opts{q}) {
+		++$cnt[$z*3+2];
+	  }
+	  print STDERR "$x\t$p->[0][1]:$p->[0][2]\t$p->[0][3]\t$p->[0][4]\t$p->[1][1]:$p->[1][2]\t$p->[1][3]\t$p->[1][4]\t",
+		$p->[0][5]-$p->[1][5], "\n" if ($z && defined($opts{p}) && ($p->[0][3] >= $opts{q} || $p->[1][3] >= $opts{q}));
+	} elsif (defined($p->[0])) {
+	  ++$cnt[$p->[0][3]>=$opts{q}? 6 : 7];
+	  print STDERR "$x\t$p->[0][1]:$p->[0][2]\t$p->[0][3]\t$p->[0][4]\t*\t0\t*\t",
+		$p->[0][5], "\n" if (defined($opts{p}) && $p->[0][3] >= $opts{q});
+	} else {
+	  print STDERR "$x\t*\t0\t*\t$p->[1][1]:$p->[1][2]\t$p->[1][3]\t$p->[1][4]\t",
+		-$p->[1][5], "\n" if (defined($opts{p}) && $p->[1][3] >= $opts{q});
+	  ++$cnt[$p->[1][3]>=$opts{q}? 8 : 9];
+	}
+  }
+  print "Consistent (high, high):   $cnt[0]\n";
+  print "Consistent (high, low ):   $cnt[1]\n";
+  print "Consistent (low , high):   $cnt[2]\n";
+  print "Inconsistent (high, high): $cnt[3]\n";
+  print "Inconsistent (high, low ): $cnt[4]\n";
+  print "Inconsistent (low , high): $cnt[5]\n";
+  print "Second missing (high):     $cnt[6]\n";
+  print "Second missing (low ):     $cnt[7]\n";
+  print "First  missing (high):     $cnt[8]\n";
+  print "First  missing (low ):     $cnt[9]\n";
+}
+
+sub uniqcmp_aux {
+  my ($fn, $a, $which, $b) = @_;
+  my $fh;
+  $fn = "samtools view $fn |" if ($fn =~ /\.bam/);
+  open($fh, $fn) || die;
+  while (<$fh>) {
+	my @t = split;
+	next if (@t < 11);
+#	my $l = ($t[5] =~ /^(\d+)S/)? $1 : 0;
+	my $l = 0;
+	my ($x, $nm) = (0, 0);
+	$nm = $1 if (/NM:i:(\d+)/);
+	$_ = $t[5];
+	s/(\d+)[MI]/$x+=$1/eg;
+	@{$a->{$t[0]}[$which]} = (($t[1]&0x10)? 1 : 0, $t[2], $t[3]-$l, $t[4], "$x:$nm", $x - $b * $nm);
+  }
+  close($fh);
+}

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/debian-med/wgsim.git



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