6 int bcfview(int argc, char *argv[]);
7 int bcf_main_index(int argc, char *argv[]);
9 #define BUF_SIZE 0x10000
11 int bcf_cat(int n, char * const *fn)
16 buf = malloc(BUF_SIZE);
17 out = bcf_open("-", "w");
18 for (i = 0; i < n; ++i) {
23 in = bcf_open(fn[i], "r");
25 if (i == 0) bcf_hdr_write(out, h);
28 fstat(knet_fileno(in->fp->x.fpr), &s);
30 while (knet_tell(in->fp->x.fpr) < end) {
31 int size = knet_tell(in->fp->x.fpr) + BUF_SIZE < end? BUF_SIZE : end - knet_tell(in->fp->x.fpr);
32 knet_read(in->fp->x.fpr, buf, size);
33 fwrite(buf, 1, size, out->fp->x.fpw);
36 abort(); // FIXME: not implemented
45 int bcf_main_pwld(int argc, char *argv[])
47 extern double bcf_pair_freq(const bcf1_t *b0, const bcf1_t *b1, double f[4]);
54 fprintf(stderr, "Usage: bcftools pwld <in.bcf>\n");
57 fp = bcf_open(argv[1], "rb");
59 // read the entire BCF
61 b0 = calloc(1, sizeof(bcf1_t));
62 while (bcf_read(fp, h, b0) >= 0) {
65 b = realloc(b, sizeof(void*) * m);
67 b[n] = calloc(1, sizeof(bcf1_t));
71 // compute pair-wise r^2
72 printf("%d\n", n); // the number of loci
73 for (i = 0; i < n; ++i) {
74 printf("%s:%d", h->ns[b[i]->tid], b[i]->pos + 1);
75 for (j = 0; j < i; ++j) {
76 double r = bcf_pair_freq(b[i], b[j], f);
77 printf("\t%.3f", r*r);
82 for (i = 0; i < n; ++i) bcf_destroy(b[i]);
89 int main(int argc, char *argv[])
92 fprintf(stderr, "\n");
93 fprintf(stderr, "Usage: bcftools <command> <arguments>\n\n");
94 fprintf(stderr, "Command: view print, extract, convert and call SNPs from BCF\n");
95 fprintf(stderr, " index index BCF\n");
96 fprintf(stderr, " cat concatenate BCFs\n");
97 fprintf(stderr, " ld compute all-pair r^2\n");
98 fprintf(stderr, "\n");
101 if (strcmp(argv[1], "view") == 0) return bcfview(argc-1, argv+1);
102 else if (strcmp(argv[1], "index") == 0) return bcf_main_index(argc-1, argv+1);
103 else if (strcmp(argv[1], "ld") == 0) return bcf_main_pwld(argc-1, argv+1);
104 else if (strcmp(argv[1], "cat") == 0) return bcf_cat(argc-2, argv+2); // cat is different ...
106 fprintf(stderr, "[main] Unrecognized command.\n");