diff options
Diffstat (limited to 'src/c')
-rw-r--r-- | src/c/quikr_functions.c.1 | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/src/c/quikr_functions.c.1 b/src/c/quikr_functions.c.1 deleted file mode 100644 index 31afb3b..0000000 --- a/src/c/quikr_functions.c.1 +++ /dev/null @@ -1,153 +0,0 @@ -#include <stdio.h> -#include <stdio.h> -#include <errno.h> -#include <ctype.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <math.h> -#include <zlib.h> - -int count_sequences(char *filename) { - char command[512]; - int sequences = 0; - FILE *grep_output; - - sprintf(command, "grep -c ^\\> %s", filename); - grep_output = popen(command, "r"); - if(grep_output == NULL) { - fprintf(stderr, "Could not execute %s\n", command); - exit(EXIT_FAILURE); - } - - fscanf(grep_output, "%d", &sequences); - - pclose(grep_output); - return sequences; -} - - -void normalize_matrix(double *matrix, int height, int width) { - int x = 0; - int y = 0; - for(x = 0; x < height; x++) { - - double row_sum = 0; - - for(y = 0; y < (width); y++) - row_sum = row_sum + matrix[width * x + y]; - for(y = 0; y < (width); y++) - matrix[width * x + y] = matrix[width * x + y] / row_sum; - } -} - - -double *load_count_matrix(char *filename, int width, int kmer) { - - double *count_matrix = malloc((width)*sizeof(double)); - char count_command[512]; - int x = 0; - char *line = NULL; - size_t len = 0; - - if(count_matrix == NULL) { - fprintf(stderr, "could not allocate enough memory for the count matrix (%d x double) \n", width); - exit(EXIT_FAILURE); - } - - // create out count matrix - sprintf(count_command, "count-kmers -r %d -1 -u %s", kmer, filename); - FILE *count_output = popen(count_command, "r"); - if(count_output == NULL) { - fprintf(stderr, "could not execute \"%s\"", count_command); - exit(EXIT_FAILURE); - } - - // set first element to zero. - count_matrix[0] = 0; - - // get our first line - getline(&line, &len, count_output); - count_matrix[1] = atoi(line); - - // iterate over the rest of the lines - for(x = 2; x < width; x++) { - getline(&line, &len, count_output); - count_matrix[x] = atoi(line); - } - - pclose(count_output); - - return count_matrix; -} - - -double *load_sensing_matrix(char *filename, int height, int width) { - - int x = 0; - int y = 0; - - gzFile sensing_matrix_fh = NULL; - - double *sensing_matrix = malloc(height * width * sizeof(double)); - if(sensing_matrix == NULL) { - fprintf(stderr, "Could not allocate memory for the sensing matrix\n"); - } - - sensing_matrix_fh = gzopen(filename, "r"); - if(sensing_matrix_fh == NULL) { - fprintf(stderr, "could not open %s", filename); - exit(EXIT_FAILURE); - } - - // read our sensing matrix in - for(x = 0; x < height; x++) { - for (y = 1; y < width; y++) { - char buffer[14]; - gzgets(sensing_matrix_fh, buffer, 14); - sensing_matrix[width*x + y] = atof(buffer); - } - } - - gzclose(sensing_matrix_fh); - - return sensing_matrix; -} - -char **load_headers(char *filename, int sequences) { - char command[512]; - char *line= NULL; - int x = 0; - FILE *grep_output; - size_t len = 0; - - sprintf(command, "grep ^\\> %s", filename); - grep_output = popen(command, "r"); - if(grep_output == NULL) { - fprintf(stderr, "Could not execute %s\n", command); - exit(EXIT_FAILURE); - } - - char **headers = malloc(sequences * sizeof(char *)); - if(headers == NULL) { - fprintf(stderr, "could not allocated enough memory\n"); - exit(EXIT_FAILURE); - } - - for(x = 0; x < sequences; x++) { - - char *header = malloc(256 * sizeof(char)); - if(header == NULL) { - fprintf(stderr, "could not allocated enough memory\n"); - exit(EXIT_FAILURE); - } - getline(&line, &len, grep_output); - sscanf(line + 1, "%s", header); - headers[x] = header; - } - - pclose(grep_output); - - return headers; -} - |