12 #include "my_assert.h"
16 #include "SingleModel.h"
17 #include "SingleQModel.h"
18 #include "PairedEndModel.h"
19 #include "PairedEndQModel.h"
22 #include "GroupInfo.h"
23 #include "WriteResults.h"
38 int start_gene_id, end_gene_id;
42 float lb, ub; // the interval is [lb, ub]
44 CIType() { lb = ub = 0.0; }
51 int nCV, nSpC, nSamples; // nCV: number of count vectors; nSpC: number of theta vectors sampled per count vector; nSamples: nCV * nSpC
56 char cvsF[STRLEN], tmpF[STRLEN], command[STRLEN];
59 CIType *iso_tpm = NULL, *iso_fpkm = NULL;
60 CIType *gene_tpm, *gene_fpkm;
65 char refName[STRLEN], imdName[STRLEN], statName[STRLEN];
66 char modelF[STRLEN], groupF[STRLEN], refF[STRLEN];
72 vector<double> eel; //expected effective lengths
86 CIParams *ciParamsArray;
88 void* sample_theta_from_c(void* arg) {
93 gamma_generator **rgs;
95 Params *params = (Params*)arg;
96 FILE *fi = params->fi;
97 const double *mw = params->mw;
99 cvec = new int[M + 1];
100 theta = new double[M + 1];
101 gammas = new gamma_dist*[M + 1];
102 rgs = new gamma_generator*[M + 1];
103 tpm = new float[M + 1];
104 float l_bar; // the mean transcript length over the sample
107 while (fscanf(fi, "%d", &cvec[0]) == 1) {
108 for (int j = 1; j <= M; j++) assert(fscanf(fi, "%d", &cvec[j]) == 1);
112 for (int j = 0; j <= M; j++) {
113 gammas[j] = new gamma_dist(cvec[j]);
114 rgs[j] = new gamma_generator(*(params->engine), *gammas[j]);
117 for (int i = 0; i < nSpC; i++) {
119 for (int j = 0; j <= M; j++) {
120 theta[j] = ((j == 0 || (eel[j] >= EPSILON && mw[j] >= EPSILON)) ? (*rgs[j])() / mw[j] : 0.0);
123 assert(sum >= EPSILON);
124 for (int j = 0; j <= M; j++) theta[j] /= sum;
128 for (int j = 1; j <= M; j++)
129 if (eel[j] >= EPSILON) {
130 tpm[j] = theta[j] / eel[j];
133 else assert(theta[j] < EPSILON);
134 assert(sum >= EPSILON);
135 l_bar = 0.0; // store mean effective length of the sample
136 for (int j = 1; j <= M; j++) { tpm[j] /= sum; l_bar += tpm[j] * eel[j]; tpm[j] *= 1e6; }
137 buffer->write(l_bar, tpm + 1); // ommit the first element in tpm
140 for (int j = 0; j <= M; j++) {
145 if (verbose && cnt % 100 == 0) { printf("Thread %d, %d count vectors are processed!\n", params->no, cnt); }
157 template<class ModelType>
158 void sample_theta_vectors_from_count_vectors() {
161 calcExpectedEffectiveLengths<ModelType>(M, refs, model, eel);
163 int num_threads = min(nThreads, nCV);
165 buffer = new Buffer(nMB, nSamples, M, l_bars, tmpF);
167 paramsArray = new Params[num_threads];
168 threads = new pthread_t[num_threads];
171 hasSeed ? engineFactory::init(seed) : engineFactory::init();
172 for (int i = 0; i < num_threads; i++) {
173 paramsArray[i].no = i;
174 sprintf(inpF, "%s%d", cvsF, i);
175 paramsArray[i].fi = fopen(inpF, "r");
176 paramsArray[i].engine = engineFactory::new_engine();
177 paramsArray[i].mw = model.getMW();
179 engineFactory::finish();
181 /* set thread attribute to be joinable */
182 pthread_attr_init(&attr);
183 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
185 for (int i = 0; i < num_threads; i++) {
186 rc = pthread_create(&threads[i], &attr, &sample_theta_from_c, (void*)(¶msArray[i]));
187 pthread_assert(rc, "pthread_create", "Cannot create thread " + itos(i) + " (numbered from 0) in sample_theta_vectors_from_count_vectors!");
189 for (int i = 0; i < num_threads; i++) {
190 rc = pthread_join(threads[i], NULL);
191 pthread_assert(rc, "pthread_join", "Cannot join thread " + itos(i) + " (numbered from 0) in sample_theta_vectors_from_count_vectors!");
194 /* destroy attribute */
195 pthread_attr_destroy(&attr);
198 for (int i = 0; i < num_threads; i++) {
199 fclose(paramsArray[i].fi);
200 delete paramsArray[i].engine;
202 delete[] paramsArray;
204 delete buffer; // Must delete here, force the content left in the buffer be written into the disk
206 if (verbose) { printf("Sampling is finished!\n"); }
209 void calcCI(int nSamples, float *samples, float &lb, float &ub) {
210 int p, q; // p pointer for lb, q pointer for ub;
212 int threshold = nSamples - (int(confidence * nSamples - 1e-8) + 1);
215 sort(samples, samples + nSamples);
217 p = 0; q = nSamples - 1;
221 while (newq > 0 && samples[newq - 1] == samples[newq]) newq--;
223 } while (newq >= 0 && nSamples - (newq + 1) <= threshold);
225 nOutside = nSamples - (q + 1);
227 lb = -1e30; ub = 1e30;
229 if (samples[q] - samples[p] < ub - lb) {
235 while (newp < nSamples - 1 && samples[newp] == samples[newp + 1]) newp++;
237 if (newp <= threshold) {
238 nOutside += newp - p;
240 while (nOutside > threshold && q < nSamples - 1) {
242 while (newq < nSamples - 1 && samples[newq] == samples[newq + 1]) newq++;
243 nOutside -= newq - q;
246 assert(nOutside <= threshold);
249 } while (p <= threshold);
252 void* calcCI_batch(void* arg) {
253 float *tsamples, *fsamples;
254 float *itsamples = NULL, *ifsamples = NULL, *gtsamples, *gfsamples;
256 CIParams *ciParams = (CIParams*)arg;
257 int curtid, curaid, tid;
259 tsamples = new float[nSamples];
260 fsamples = new float[nSamples];
262 itsamples = new float[nSamples];
263 ifsamples = new float[nSamples];
265 gtsamples = new float[nSamples];
266 gfsamples = new float[nSamples];
268 fin.open(tmpF, ios::binary);
269 // minus 1 here for that theta0 is not written!
270 streampos pos = streampos(gi.spAt(ciParams->start_gene_id) - 1) * nSamples * FLOATSIZE;
271 fin.seekg(pos, ios::beg);
275 curtid = curaid = -1;
276 memset(itsamples, 0, FLOATSIZE * nSamples);
277 memset(ifsamples, 0, FLOATSIZE * nSamples);
279 for (int i = ciParams->start_gene_id; i < ciParams->end_gene_id; i++) {
280 int b = gi.spAt(i), e = gi.spAt(i + 1);
281 memset(gtsamples, 0, FLOATSIZE * nSamples);
282 memset(gfsamples, 0, FLOATSIZE * nSamples);
283 for (int j = b; j < e; j++) {
288 if (j - curaid > 1) {
289 calcCI(nSamples, itsamples, iso_tpm[curtid].lb, iso_tpm[curtid].ub);
290 calcCI(nSamples, ifsamples, iso_fpkm[curtid].lb, iso_fpkm[curtid].ub);
293 iso_tpm[curtid] = tpm[curaid];
294 iso_fpkm[curtid] = fpkm[curaid];
302 for (int k = 0; k < nSamples; k++) {
303 fin.read((char*)(&tsamples[k]), FLOATSIZE);
304 fsamples[k] = 1e3 / l_bars[k] * tsamples[k];
306 itsamples[k] += tsamples[k];
307 ifsamples[k] += fsamples[k];
309 gtsamples[k] += tsamples[k];
310 gfsamples[k] += fsamples[k];
312 calcCI(nSamples, tsamples, tpm[j].lb, tpm[j].ub);
313 calcCI(nSamples, fsamples, fpkm[j].lb, fpkm[j].ub);
317 calcCI(nSamples, gtsamples, gene_tpm[i].lb, gene_tpm[i].ub);
318 calcCI(nSamples, gfsamples, gene_fpkm[i].lb, gene_fpkm[i].ub);
321 gene_tpm[i] = tpm[b];
322 gene_fpkm[i] = fpkm[b];
326 if (verbose && cnt % 1000 == 0) { printf("In thread %d, %d genes are processed for CI calculation!\n", ciParams->no, cnt); }
330 if (alleleS && (curtid >= 0)) {
331 if (gi.spAt(ciParams->end_gene_id) - curaid > 1) {
332 calcCI(nSamples, itsamples, iso_tpm[curtid].lb, iso_tpm[curtid].ub);
333 calcCI(nSamples, ifsamples, iso_fpkm[curtid].lb, iso_fpkm[curtid].ub);
336 iso_tpm[curtid] = tpm[curaid];
337 iso_fpkm[curtid] = fpkm[curaid];
353 void calculate_credibility_intervals(char* imdName) {
356 int num_threads = nThreads;
358 tpm = new CIType[M + 1];
359 fpkm = new CIType[M + 1];
361 iso_tpm = new CIType[m_trans];
362 iso_fpkm = new CIType[m_trans];
364 gene_tpm = new CIType[m];
365 gene_fpkm = new CIType[m];
368 int quotient = M / num_threads;
369 if (quotient < 1) { num_threads = M; quotient = 1; }
371 int num_isoforms = 0;
373 // A just so so strategy for paralleling
374 ciParamsArray = new CIParams[num_threads];
375 for (int i = 0; i < num_threads; i++) {
376 ciParamsArray[i].no = i;
377 ciParamsArray[i].start_gene_id = cur_gene_id;
380 while ((m - cur_gene_id > num_threads - i - 1) && (i == num_threads - 1 || num_isoforms < quotient)) {
381 num_isoforms += gi.spAt(cur_gene_id + 1) - gi.spAt(cur_gene_id);
385 ciParamsArray[i].end_gene_id = cur_gene_id;
388 threads = new pthread_t[num_threads];
390 /* set thread attribute to be joinable */
391 pthread_attr_init(&attr);
392 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
395 for (int i = 0; i < num_threads; i++) {
396 rc = pthread_create(&threads[i], &attr, &calcCI_batch, (void*)(&ciParamsArray[i]));
397 pthread_assert(rc, "pthread_create", "Cannot create thread " + itos(i) + " (numbered from 0) in calculate_credibility_intervals!");
399 for (int i = 0; i < num_threads; i++) {
400 rc = pthread_join(threads[i], NULL);
401 pthread_assert(rc, "pthread_join", "Cannot join thread " + itos(i) + " (numbered from 0) in calculate_credibility_intervals!");
404 // releasing resources
406 /* destroy attribute */
407 pthread_attr_destroy(&attr);
410 delete[] ciParamsArray;
412 alleleS ? sprintf(outF, "%s.allele_res", imdName) : sprintf(outF, "%s.iso_res", imdName);
413 fo = fopen(outF, "a");
414 for (int i = 1; i <= M; i++)
415 fprintf(fo, "%.6g%c", tpm[i].lb, (i < M ? '\t' : '\n'));
416 for (int i = 1; i <= M; i++)
417 fprintf(fo, "%.6g%c", tpm[i].ub, (i < M ? '\t' : '\n'));
418 for (int i = 1; i <= M; i++)
419 fprintf(fo, "%.6g%c", fpkm[i].lb, (i < M ? '\t' : '\n'));
420 for (int i = 1; i <= M; i++)
421 fprintf(fo, "%.6g%c", fpkm[i].ub, (i < M ? '\t' : '\n'));
425 //isoform level results
426 sprintf(outF, "%s.iso_res", imdName);
427 fo = fopen(outF, "a");
428 for (int i = 0; i < m_trans; i++)
429 fprintf(fo, "%.6g%c", iso_tpm[i].lb, (i < m_trans - 1 ? '\t' : '\n'));
430 for (int i = 0; i < m_trans; i++)
431 fprintf(fo, "%.6g%c", iso_tpm[i].ub, (i < m_trans - 1 ? '\t' : '\n'));
432 for (int i = 0; i < m_trans; i++)
433 fprintf(fo, "%.6g%c", iso_fpkm[i].lb, (i < m_trans - 1 ? '\t' : '\n'));
434 for (int i = 0; i < m_trans; i++)
435 fprintf(fo, "%.6g%c", iso_fpkm[i].ub, (i < m_trans - 1 ? '\t' : '\n'));
440 sprintf(outF, "%s.gene_res", imdName);
441 fo = fopen(outF, "a");
442 for (int i = 0; i < m; i++)
443 fprintf(fo, "%.6g%c", gene_tpm[i].lb, (i < m - 1 ? '\t' : '\n'));
444 for (int i = 0; i < m; i++)
445 fprintf(fo, "%.6g%c", gene_tpm[i].ub, (i < m - 1 ? '\t' : '\n'));
446 for (int i = 0; i < m; i++)
447 fprintf(fo, "%.6g%c", gene_fpkm[i].lb, (i < m - 1 ? '\t' : '\n'));
448 for (int i = 0; i < m; i++)
449 fprintf(fo, "%.6g%c", gene_fpkm[i].ub, (i < m - 1 ? '\t' : '\n'));
461 if (verbose) { printf("All credibility intervals are calculated!\n"); }
464 int main(int argc, char* argv[]) {
466 printf("Usage: rsem-calculate-credibility-intervals reference_name imdName statName confidence nCV nSpC nMB [-p #Threads] [--seed seed] [-q]\n");
470 strcpy(refName, argv[1]);
471 strcpy(imdName, argv[2]);
472 strcpy(statName, argv[3]);
474 confidence = atof(argv[4]);
476 nSpC = atoi(argv[6]);
482 for (int i = 8; i < argc; i++) {
483 if (!strcmp(argv[i], "-p")) nThreads = atoi(argv[i + 1]);
484 if (!strcmp(argv[i], "--seed")) {
486 int len = strlen(argv[i + 1]);
488 for (int k = 0; k < len; k++) seed = seed * 10 + (argv[i + 1][k] - '0');
490 if (!strcmp(argv[i], "-q")) quiet = true;
494 sprintf(refF, "%s.seq", refName);
495 refs.loadRefs(refF, 1);
498 sprintf(groupF, "%s.grp", refName);
503 alleleS = isAlleleSpecific(refName, NULL, &ta);
504 if (alleleS) m_trans = ta.getm();
506 nSamples = nCV * nSpC;
507 assert(nSamples > 0 && M > 0); // for Buffter.h: (bufsize_type)nSamples
508 l_bars = new float[nSamples];
510 sprintf(tmpF, "%s.tmp", imdName);
511 sprintf(cvsF, "%s.countvectors", imdName);
513 sprintf(modelF, "%s.model", statName);
514 FILE *fi = fopen(modelF, "r");
515 general_assert(fi != NULL, "Cannot open " + cstrtos(modelF) + "!");
516 assert(fscanf(fi, "%d", &model_type) == 1);
521 case 0 : sample_theta_vectors_from_count_vectors<SingleModel>(); break;
522 case 1 : sample_theta_vectors_from_count_vectors<SingleQModel>(); break;
523 case 2 : sample_theta_vectors_from_count_vectors<PairedEndModel>(); break;
524 case 3 : sample_theta_vectors_from_count_vectors<PairedEndQModel>(); break;
528 calculate_credibility_intervals(imdName);