def main():
geno_file = '/gale/netapp/home/shhuang/data/1001_genomes/gmi_release_v3.1/1001genomes_snp-short-indel_only_ACGTN_1001tx_filter1.hdf5'
pheno_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-01-03/ath1001_tx_norm_2016-01-03-filtered01_1001g_vst_cv0p05T.hdf5'
out_dir = '/gale/netapp/home/shhuang/projects/1001_genomes/calc_k_panama_2016-02-03'
out_graphics_dir = make_sure_path_exists(os.path.join(out_dir, 'graphics'))
graphics_prefix = os.path.join(out_graphics_dir,
'calc_k_panama_2016-02-03-')
results_prefix = os.path.join(out_dir, 'calc_k_panama_2016-02-03-')
logger = LoggerFactory.get_logger(os.path.join(
out_dir, 'calc_k_panama_2016-02-03.log'),
file_level=logging.DEBUG,
console_level=logging.DEBUG)
logger.info('Loading genotype from %s', geno_file)
geno_reader = gr.genotype_reader_tables(geno_file)
logger.info('Loading phenotype from %s', pheno_file)
pheno_reader = phr.pheno_reader_tables(pheno_file)
pheno_reader.sample_ID = strip_xvec(pheno_reader.sample_ID)
# the data object allows to query specific genotype or phenotype data
logger.info('Creating QTL dataset')
dataset = data.QTLData(geno_reader=geno_reader, pheno_reader=pheno_reader)
# import data
phenotypes, sample_idx = dataset.getPhenotypes(intersection=True)
sample_relatedness = dataset.getCovariance()
# determine the number of ranks to consider in the PANAMA matrix
# by looking at the variance explained by PCs
cum_var = panama.PC_varExplained(phenotypes.values)
out_file = graphics_prefix + 'cum_var.png'
fig = plt.figure(figsize=[5, 4])
subplt = pl.subplot(1, 1, 1)
pl.bar(sp.arange(50) + 0.5, cum_var[:50], width=1)
pl.xlim(0, 50)
ticks = sp.linspace(0, 50, 11)
ticks[0] = 1
subplt.set_xticks(ticks)
fig.savefig(out_file)
plt.close(fig)
for r in [10, 15, 20]:
p = panama.PANAMA(Y=phenotypes.values, Kpop=sample_relatedness)
logger.info('Training r=%d', r)
p.train(rank=r)
draw_and_save_panama(p, graphics_prefix + '_K%d' % r,
results_prefix + '_K%d' % r)
def main():
geno_file, pheno_file, out_dir = sys.argv[1:]
#geno_file = '/gale/netapp/home/shhuang/data/1001_genomes/gmi_release_v3.1/1001genomes_snp-short-indel_only_ACGTN_1001tx_filter1.hdf5'
#pheno_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-01-03/ath1001_tx_norm_2016-01-03-filtered01_1001g_vst_cv0p05T.hdf5'
#out_dir = '.'
logger = LoggerFactory.get_logger(os.path.join(out_dir,
'get_geno_pos.log'))
LoggerFactory.log_command(logger, sys.argv[1:])
logger.info('Loading genotype from %s', geno_file)
geno_reader = gr.genotype_reader_tables(geno_file)
logger.info('Loading phenotype from %s', pheno_file)
pheno_reader = phr.pheno_reader_tables(pheno_file)
pheno_reader.sample_ID = strip_xvec(pheno_reader.sample_ID)
# the data object allows to query specific genotype or phenotype data
logger.info('Creating QTL dataset')
dataset = data.QTLData(geno_reader=geno_reader, pheno_reader=pheno_reader)
# getting genotypes
#snps = dataset.getGenotypes() #SNPS
position = dataset.getPos()
position, chromBounds = data_util.estCumPos(position=position,
offset=100000)
logger.info('Writing output to directory %s', out_dir)
position = position.astype(int)
chromBounds = chromBounds.astype(int)
position.to_csv(os.path.join(out_dir, 'position.txt'),
header=True,
index=False,
sep='\t')
np.savetxt(os.path.join(out_dir, 'chromBounds.txt'),
chromBounds,
delimiter=",")
def main():
geno_file,pheno_file,norm_mode,panama_file,RNA_start,RNA_end,out_dir = sys.argv[1:]
#geno_file = '/gale/netapp/home/shhuang/data/1001_genomes/gmi_release_v3.1/1001genomes_snp-short-indel_only_ACGTN_1001tx_filter1.hdf5'
#pheno_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-01-03/ath1001_tx_norm_2016-01-03-filtered01_1001g_vst_cv0p05T.hdf5'
#norm_mode = 'RIN'
#out_dir = '.'
#panama_file = '/gale/netapp/home/shhuang/projects/1001_genomes/calc_k_panama_2016-02-03/calc_k_panama_2016-02-03-_K10_dat.hdf5'
#RNA_start,RNA_end = 0,2
RNA_start,RNA_end = int(RNA_start),int(RNA_end)
make_sure_path_exists(out_dir)
log_dir = make_sure_path_exists(os.path.join(out_dir,'logs'))
logger = LoggerFactory.get_logger(os.path.join(log_dir,'%s-%s.log'%(RNA_start,RNA_end)),
file_level=logging.DEBUG,console_level=logging.DEBUG)
LoggerFactory.log_command(logger,sys.argv[1:])
logger.info('Output directory: %s',out_dir)
out_graphics_dir = make_sure_path_exists(os.path.join(out_dir,'graphics'))
out_results_dir = make_sure_path_exists(os.path.join(out_dir,'results'))
logger.info('Loading genotype from %s',geno_file)
geno_reader = gr.genotype_reader_tables(geno_file)
logger.info('Loading phenotype from %s',pheno_file)
pheno_reader = phr.pheno_reader_tables(pheno_file)
pheno_reader.sample_ID = strip_xvec(pheno_reader.sample_ID)
logger.info('Loading sample relatedness from %s',panama_file)
panama_f = h5py.File(panama_file,'r')
Ktot = panama_f['Ktot'][:]
# the data object allows to query specific genotype or phenotype data
logger.info('Creating QTL dataset')
dataset = data.QTLData(geno_reader=geno_reader,pheno_reader=pheno_reader)
# getting genotypes
snps = dataset.getGenotypes() #SNPS
position = dataset.getPos()
position,chromBounds = data_util.estCumPos(position=position,offset=100000)
logger.info('Subset phenotype to index %d-%d',RNA_start,RNA_end)
phenotype_ID = dataset.phenotype_ID[RNA_start:RNA_end]
phenotypes,sample_idx = dataset.getPhenotypes(phenotype_ID)
logger.info('Normalization: %s',norm_mode)
if norm_mode=='None':
phenotype_vals = phenotypes.values
elif norm_mode=='RIN':
phenotype_vals = preprocess.rankStandardizeNormal(phenotypes.values)
elif norm_mode=='boxcox':
phenotype_vals,maxlog = preprocess.boxcox(phenotypes.values)
else:
logger.info('Normalization mode %s is not recognized. Exit',norm_mode)
N = snps.shape[0] #number of individuals
S = snps.shape[1] #number of SNPs
P = phenotype_vals.shape[1]#number of phenotypes
logger.info('Number of individuals: %d; number of SNPs: %d; number of phenotypes: %d',
N,S,P)
logger.info('Plotting phenotype histograms')
phenohist_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'phenohist'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(phenohist_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[3,3])#create the figure
plot_normal(phenotype_vals[:,ip],alpha=0.8,figure=fig)
plt.title("%s" % p_ID)
fig.savefig(out_file)
plt.close(fig)
#logger.info('Start testing: LM')
#lm = qtl.test_lm(snps=snps[sample_idx].astype('int'),pheno=phenotype_vals.values,
# covs=cov,verbose=True)
#convert P-values to a DataFrame for nice output writing:
#pvalues_lm = pd.DataFrame(data=lm.pvalues.T,index=dataset.geno_ID,
# columns=phenotype_ID)
logger.info('Start testing: LMM')
#lmm = qtl.test_lmm(snps=snps[sample_idx].astype('int'),pheno=phenotype_vals.values,
# K=sample_relatedness,covs=cov,verbose=True)
lmm = qtl.test_lmm(snps=snps[sample_idx].astype('int'),pheno=phenotype_vals,
K=Ktot,covs=None,verbose=True)
pvalues_lmm = pd.DataFrame(data=lmm.pvalues.T,index=dataset.geno_ID,
columns=phenotype_ID)
logger.info('Saving P-values to text file')
#lm_pval_dir = make_sure_path_exists(os.path.join(out_results_dir,'lm_pval'))
lmm_pval_dir = make_sure_path_exists(os.path.join(out_results_dir,'lmm_pval'))
for ip,p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
#pvalues_lm[p_ID].to_csv(os.path.join(lm_pval_dir,'%s.txt'%p_ID),
# header=True,index=False)
pvalues_lmm[p_ID].to_csv(os.path.join(lmm_pval_dir,'%s.txt'%p_ID),
header=True,index=False)
# Genome-wide manhatton plots for one phenotype:
logger.info('Plotting Manhattan plots')
manh_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'manhattan'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(manh_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[12,8])
#subpl = plt.subplot(2,1,1)
#plot_manhattan(posCum=position['pos_cum'],pv=pvalues_lm[p_ID].values,chromBounds=chromBounds,thr_plotting=0.05)
#plt.title('%s, LM'%p_ID)
#subpl = plt.subplot(2,1,2)
plot_manhattan(posCum=position['pos_cum'],pv=pvalues_lmm[p_ID].values,chromBounds=chromBounds,thr_plotting=0.05)
plt.title('%s, LMM'%p_ID)
fig.savefig(out_file)
plt.close(fig)
# SNP vs. phenotype
logger.info('Plotting phenotype vs. SNP')
snp_pheno_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'snp_pheno'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(snp_pheno_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[3,3])#create the figure
#find maximum squared beta value
pheno_vals, s_idx = dataset.getPhenotypes([p_ID])
imax = lmm.pvalues[ip].argmin()
i_0 = snps[s_idx,imax]==0
#plot SNP vs. phenotype for max beta
plt.plot(snps[s_idx,imax]+0.05*np.random.randn(snps[s_idx,imax].shape[0]),pheno_vals.values,'.',alpha=0.5)
plt.xlabel("SNP")
plt.ylabel("phenotype")
plt.xlim([-0.5,2.5])
plt.title("%s" % p_ID)
fig.savefig(out_file)
plt.close(fig)
# P-value histgrams
logger.info('Plotting P-value histograms')
pval_hist_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'pval_hist'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(pval_hist_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[7,3])
#subpl = plt.subplot(1,2,1)
#plt.hist(pvalues_lm[p_ID].values,20,normed=True)
#plt.plot([0,1],[1,1],"r")
#plt.title("%s, LM" % p_ID)
#plt.xlabel("P-value")
#plt.ylabel("Frequency")
#subpl = plt.subplot(1,2,2)
plt.hist(pvalues_lmm[p_ID].values,20,normed=True)
plt.plot([0,1],[1,1],"r")
plt.title("%s, LMM" % p_ID)
plt.xlabel("P-value")
plt.ylabel("Frequency")
fig.savefig(out_file)
plt.close(fig)
# Quantile-Quantile plots
logger.info('Plotting Q-Q plots')
qqplot_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'qqplot'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(qqplot_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[7,3])
#subpl = plt.subplot(1,2,1)
#qqplot(pvalues_lm[p_ID].values)
#plt.title("%s, LM" % p_ID)
#subpl = plt.subplot(1,2,2)
qqplot(pvalues_lmm[p_ID].values)
plt.title("%s, LMM" % p_ID)
fig.savefig(out_file)
plt.close(fig)
# P value scatter plot
#logger.info('Plotting LM vs LMM P-values')
#pval_lmvslmm_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'pval_lmvslmm'))
#for ip,p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
# out_file = os.path.join(pval_lmvslmm_dir,'%s.png'%p_ID)
# fig = plt.figure(figsize=[3,3])
# plt.plot(-sp.log10(pvalues_lm[p_ID]),-sp.log10(pvalues_lmm[p_ID]),'.')
# ymax = max(plt.xlim()[1],plt.ylim()[1])
# plt.plot([0,ymax],[0,ymax],'k--')
# plt.xlabel('LM')
# plt.ylabel('LMM')
# plt.title(p_ID)
# fig.savefig(out_file)
# plt.close(fig)
logger.info('Done with all plots!')
logger.info('Done!')
#--------------------#
#### Prepare data ####
#--------------------#
# Reader instance for genotypes
geno_reader = gr.genotype_reader_tables(
'/home/hugot/projects/20150501_accessions/genotypes/snp250k/pygwas_genotypes_limix.hdf5'
)
# Reader instance for phenotypes
pheno_reader = phr.pheno_reader_tables(
'/home/hugot/projects/20150501_accessions/phenotypes/limix/accession_phenotypes_silique_early.hdf5'
)
# Combine genotypes and phenotypes into limix-specific object
dataset = data.QTLData(geno_reader=geno_reader, pheno_reader=pheno_reader)
# Get SNPs, phenotypes and positions in respective variables
snps = dataset.getGenotypes()
phenotypes = dataset.getPhenotypes(intersection=True)[0]
pos = dataset.getPos()
pos, chromBounds = data_util.estCumPos(position=pos, offset=0)
# Subset only TSS trait for multi-trait LMM
phenotypes_tss = phenotypes[['totalbr_mean_ln', 'totalbr_mean_hn']]
# Estimate relatedness matrix
sample_relatedness = dataset.getCovariance(normalize=True, center=True)
def main():
if 1:
geno_file, pheno_file, norm_mode, K_file, cov_file, RNA_start, RNA_end, out_dir = sys.argv[
1:]
if 0:
geno_file = '/gale/netapp/home/shhuang/data/1001_genomes/dmC_bins/dmC_filtered/dmC_filtered_methylation_4.hdf5'
pheno_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-02-06/ath1001_tx_norm_2016-02-06-UQ_gNorm_k4_vst2_cv0p05_UQCounts_1001gT.hdf5'
norm_mode = 'RIN'
out_dir = 'test_v8'
K_file = '/gale/netapp/home/shhuang/data/1001_genomes/gmi_release_v3.1/X1001tx_filter1/norm_cov_1001tx_filter1.csv'
cov_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-01-03/ath1001_tx_norm_2016-01-03-gNorm_W_k4.txt'
RNA_start, RNA_end = 0, 5
make_sure_path_exists(out_dir)
log_dir = make_sure_path_exists(os.path.join(out_dir, 'logs'))
logger = LoggerFactory.get_logger(os.path.join(
log_dir, '%s-%s.log' % (RNA_start, RNA_end)),
file_level=logging.DEBUG,
console_level=logging.DEBUG)
LoggerFactory.log_command(logger, sys.argv[1:])
logger.info('Output directory: %s', out_dir)
out_graphics_dir = make_sure_path_exists(os.path.join(out_dir, 'graphics'))
out_results_dir = make_sure_path_exists(os.path.join(out_dir, 'results'))
RNA_start, RNA_end = int(RNA_start), int(RNA_end)
logger.info('Loading genotype from %s', geno_file)
geno_reader = gr.genotype_reader_tables(geno_file)
logger.info('Loading phenotype from %s', pheno_file)
pheno_reader = phr.pheno_reader_tables(pheno_file)
pheno_reader.sample_ID = strip_xvec(pheno_reader.sample_ID)
# the data object allows to query specific genotype or phenotype data
logger.info('Creating QTL dataset')
dataset = data.QTLData(geno_reader=geno_reader, pheno_reader=pheno_reader)
# getting genotypes
snps = dataset.getGenotypes() #SNPS
position = dataset.getPos()
position, chromBounds = data_util.estCumPos(position=position,
offset=100000)
logger.info('Sample relatedness %s', K_file)
logger.info('Loading sample relatedness from %s', K_file)
if (K_file == 'None'):
sample_relatedness = None
else:
logger.info('Start loading covariance from %s', K_file)
K_df = pd.read_csv(K_file, sep='\t', header=None,
index_col=0) # accessions x accessions
K_df.index = ['%d' % i for i in K_df.index]
K_df.columns = K_df.index
sample_relatedness = K_df.loc[dataset.sample_ID,
dataset.sample_ID].as_matrix()
sample_relatedness_dir = make_sure_path_exists(
os.path.join(out_graphics_dir, 'sample_relatedness'))
pl.imshow(sample_relatedness, aspect='auto')
plt.savefig(os.path.join(sample_relatedness_dir, 'sample_relatedness.png'))
logger.info('Subset phenotype to index %d-%d', RNA_start, RNA_end)
phenotype_ID = dataset.phenotype_ID[RNA_start:RNA_end]
phenotypes,sample_idx = getPhenotypes(dataset.pheno_reader,phenotype_IDs=phenotype_ID,\
sample_idx=dataset.sample_idx['pheno'])
logger.info('Phenotype normalization: %s', norm_mode)
if norm_mode == 'None':
phenotype_vals = phenotypes.values
elif norm_mode == 'RIN':
phenotype_vals = preprocess.rankStandardizeNormal(phenotypes.values)
elif norm_mode == 'boxcox':
phenotype_vals, maxlog = preprocess.boxcox(phenotypes.values)
else:
logger.info('Normalization mode %s is not recognized. Use None',
norm_mode)
phenotype_vals = phenotypes.values
N = snps.shape[0] #number of individuals
S = snps.shape[1] #number of SNPs
P = phenotype_vals.shape[1] #number of phenotypes
logger.info(
'Number of individuals: %d; number of SNPs: %d; number of phenotypes: %d',
N, S, P)
logger.info('Plotting phenotype histograms')
phenohist_dir = make_sure_path_exists(
os.path.join(out_graphics_dir, 'phenohist'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(phenohist_dir, '%s.png' % p_ID)
fig = plt.figure(figsize=[3, 3]) #create the figure
plot_normal(phenotype_vals[:, ip], alpha=0.8, figure=fig)
plt.title("%s" % p_ID)
fig.savefig(out_file)
plt.close(fig)
logger.info('Sample covariance %s', cov_file)
if (cov_file == 'None'):
cov = None
else:
logger.info('Start loading covariance from %s', cov_file)
cov_df = pd.read_csv(cov_file, sep='\t', header=0,
index_col=0) # cov x accessions
cov = cov_df.ix[add_xvec(dataset.sample_ID)].as_matrix()
#logger.info('Start testing: LM')
#lm = qtl.test_lm(snps=snps[sample_idx].astype('int'),pheno=phenotype_vals,
# covs=cov,verbose=True)
#convert P-values to a DataFrame for nice output writing:
#pvalues_lm = pd.DataFrame(data=lm.pvalues.T,index=dataset.geno_ID,
# columns=phenotype_ID)
logger.info('Start testing: LMM')
lmm = qtl.test_lmm(snps=snps[sample_idx].astype('int'),
pheno=phenotype_vals,
K=sample_relatedness,
covs=cov,
verbose=True)
pvalues_lmm = pd.DataFrame(data=lmm.pvalues.T,
index=dataset.geno_ID,
columns=phenotype_ID)
#lm_pval_dir = make_sure_path_exists(os.path.join(out_results_dir,'lm_pval'))
lmm_pval_dir = make_sure_path_exists(
os.path.join(out_results_dir, 'lmm_pval'))
logger.info('Saving P-values to text file in %s', lmm_pval_dir)
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
#pvalues_lm[p_ID].to_csv(os.path.join(lm_pval_dir,'%s.txt'%p_ID),
# header=True,index=False)
pvalues_lmm[p_ID].to_csv(os.path.join(lmm_pval_dir, '%s.txt' % p_ID),
header=True,
index=False)
# Genome-wide manhatton plots for one phenotype:
manh_dir = make_sure_path_exists(
os.path.join(out_graphics_dir, 'manhattan'))
logger.info('Plotting Manhattan plots in %s', manh_dir)
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(manh_dir, '%s.png' % p_ID)
fig = plt.figure(figsize=[12, 8])
#subpl = plt.subplot(2,1,1)
#plot_manhattan(posCum=position['pos_cum'],pv=pvalues_lm[p_ID].values,chromBounds=chromBounds,thr_plotting=0.05)
#plt.title('%s, LM'%p_ID)
#subpl = plt.subplot(2,1,2)
plot_manhattan(posCum=position['pos_cum'],
pv=pvalues_lmm[p_ID].values,
chromBounds=chromBounds,
thr_plotting=0.05)
plt.title('%s, LMM' % p_ID)
fig.savefig(out_file)
plt.close(fig)
# SNP vs. phenotype
snp_pheno_dir = make_sure_path_exists(
os.path.join(out_graphics_dir, 'snp_pheno'))
logger.info('Plotting phenotype vs. SNP to %s', snp_pheno_dir)
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(snp_pheno_dir, '%s.png' % p_ID)
fig = plt.figure(figsize=[3, 3]) #create the figure
#find maximum squared beta value
pheno_vals, s_idx = getPhenotypes(dataset.pheno_reader,phenotype_IDs=[p_ID],\
sample_idx=dataset.sample_idx['pheno'])
imax = lmm.pvalues[ip].argmin()
i_0 = snps[s_idx, imax] == 0
#plot SNP vs. phenotype for max beta
plt.plot(snps[s_idx, imax] +
0.05 * np.random.randn(snps[s_idx, imax].shape[0]),
pheno_vals.values,
'.',
alpha=0.5)
plt.xlabel("SNP")
plt.ylabel("phenotype")
plt.xlim([-0.5, 2.5])
plt.title("%s" % p_ID)
fig.savefig(out_file)
plt.close(fig)
# P-value histgrams
pval_hist_dir = make_sure_path_exists(
os.path.join(out_graphics_dir, 'pval_hist'))
logger.info('Plotting P-value histograms to %s', pval_hist_dir)
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(pval_hist_dir, '%s.png' % p_ID)
fig = plt.figure(figsize=[7, 3])
#subpl = plt.subplot(1,2,1)
#plt.hist(pvalues_lm[p_ID].values,20,normed=True)
#plt.plot([0,1],[1,1],"r")
#plt.title("%s, LM" % p_ID)
#plt.xlabel("P-value")
#plt.ylabel("Frequency")
#subpl = plt.subplot(1,2,2)
plt.hist(pvalues_lmm[p_ID].values, 20, normed=True)
plt.plot([0, 1], [1, 1], "r")
plt.title("%s, LMM" % p_ID)
plt.xlabel("P-value")
plt.ylabel("Frequency")
fig.savefig(out_file)
plt.close(fig)
# Quantile-Quantile plots
qqplot_dir = make_sure_path_exists(os.path.join(out_graphics_dir,
'qqplot'))
logger.info('Plotting Q-Q plots to %s', qqplot_dir)
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(qqplot_dir, '%s.png' % p_ID)
fig = plt.figure(figsize=[7, 3])
#subpl = plt.subplot(1,2,1)
#qqplot(pvalues_lm[p_ID].values)
#plt.title("%s, LM" % p_ID)
#subpl = plt.subplot(1,2,2)
qqplot(pvalues_lmm[p_ID].values)
plt.title("%s, LMM" % p_ID)
fig.savefig(out_file)
plt.close(fig)
# P value scatter plot
# logger.info('Plotting LM vs LMM P-values')
# pval_lmvslmm_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'pval_lmvslmm'))
# for ip,p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
# out_file = os.path.join(pval_lmvslmm_dir,'%s.png'%p_ID)
# fig = plt.figure(figsize=[3,3])
# plt.plot(-sp.log10(pvalues_lm[p_ID]),-sp.log10(pvalues_lmm[p_ID]),'.')
# ymax = max(plt.xlim()[1],plt.ylim()[1])
# plt.plot([0,ymax],[0,ymax],'k--')
# plt.xlabel('LM')
# plt.ylabel('LMM')
# plt.title(p_ID)
# fig.savefig(out_file)
# plt.close(fig)
logger.info('Done with all plots!')
logger.info('Done!')
def main():
geno_file,pheno_file,cov_file,RNA_start,RNA_end,out_dir = sys.argv[1:]
make_sure_path_exists(out_dir)
log_dir = make_sure_path_exists(os.path.join(out_dir,'logs'))
logger = LoggerFactory.get_logger(os.path.join(log_dir,'%s-%s.log'%(RNA_start,RNA_end)),
file_level=logging.DEBUG,console_level=logging.DEBUG)
LoggerFactory.log_command(logger,sys.argv[1:])
logger.info('Output directory: %s',out_dir)
#geno_file = '/gale/netapp/home/shhuang/data/1001_genomes/gmi_release_v3.1/1001genomes_snp-short-indel_only_ACGTN_1001tx_filter1_2.hdf5'
#pheno_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-01-03/ath1001_tx_norm_2016-01-03-gNorm_normCounts_k4_1001g_vst2_cv0p05_rinT.hdf5'
#out_dir = '.'
#cov_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-01-03/ath1001_tx_norm_2016-01-03-gNorm_W_k4.txt'
#RNA_start,RNA_end = 0,5
RNA_start,RNA_end = int(RNA_start),int(RNA_end)
out_graphics_dir = make_sure_path_exists(os.path.join(out_dir,'graphics'))
out_results_dir = make_sure_path_exists(os.path.join(out_dir,'results'))
logger.info('Loading genotype from %s',geno_file)
geno_reader = gr.genotype_reader_tables(geno_file)
logger.info('Loading phenotype from %s',pheno_file)
pheno_reader = phr.pheno_reader_tables(pheno_file)
pheno_reader.sample_ID = strip_xvec(pheno_reader.sample_ID)
# the data object allows to query specific genotype or phenotype data
logger.info('Creating QTL dataset')
dataset = data.QTLData(geno_reader=geno_reader,pheno_reader=pheno_reader)
# getting genotypes
snps = dataset.getGenotypes() #SNPS
position = dataset.getPos()
position,chromBounds = data_util.estCumPos(position=position,offset=100000)
logger.info('Calculating sample relatedness')
# non-normalized and normalized sample relatedeness matrix
sample_relatedness_unnormalized = dataset.getCovariance(normalize=False)
sample_relatedness = sample_relatedness_unnormalized/sample_relatedness_unnormalized.diagonal().mean()
sample_relatedness_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'sample_relatedness'))
pl.imshow(sample_relatedness,aspect='auto')
plt.savefig(os.path.join(sample_relatedness_dir,'sample_relatedness_norm.png'))
logger.info('Subset phenotype to index %d-%d',RNA_start,RNA_end)
phenotype_ID = dataset.phenotype_ID[RNA_start:RNA_end]
phenotype_vals,sample_idx = dataset.getPhenotypes(phenotype_ID)
N = snps.shape[0] #number of individuals
S = snps.shape[1] #number of SNPs
P = phenotype_vals.shape[1]#number of phenotypes
logger.info('Number of individuals: %d; number of SNPs: %d; number of phenotypes: %d',
N,S,P)
logger.info('Plotting phenotype histograms')
phenohist_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'phenohist'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(phenohist_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[3,3])#create the figure
plot_normal(phenotype_vals.values[:,ip],alpha=0.8,figure=fig)
plt.title("%s" % p_ID)
fig.savefig(out_file)
plt.close(fig)
logger.info('Start loading covariance from %s',cov_file)
cov_df = pd.read_csv(cov_file,sep='\t',header=0,index_col=0) # cov x accessions
cov = cov_df.ix[add_xvec(dataset.sample_ID)].as_matrix()
logger.info('Finished')
logger.info('Start testing: LM')
lm = qtl.test_lm(snps=snps[sample_idx].astype('int'),pheno=phenotype_vals.values,
covs=cov,verbose=True)
#convert P-values to a DataFrame for nice output writing:
pvalues_lm = pd.DataFrame(data=lm.pvalues.T,index=dataset.geno_ID,
columns=phenotype_ID)
logger.info('Start testing: LMM')
lmm = qtl.test_lmm(snps=snps[sample_idx].astype('int'),pheno=phenotype_vals.values,
K=sample_relatedness,covs=cov,verbose=True)
pvalues_lmm = pd.DataFrame(data=lmm.pvalues.T,index=dataset.geno_ID,
columns=phenotype_ID)
logger.info('Saving P-values to text file')
lm_pval_dir = make_sure_path_exists(os.path.join(out_results_dir,'lm_pval'))
lmm_pval_dir = make_sure_path_exists(os.path.join(out_results_dir,'lmm_pval'))
for ip,p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
pvalues_lm[p_ID].to_csv(os.path.join(lm_pval_dir,'%s.txt'%p_ID),
header=True,index=False)
pvalues_lmm[p_ID].to_csv(os.path.join(lmm_pval_dir,'%s.txt'%p_ID),
header=True,index=False)
# Genome-wide manhatton plots for one phenotype:
logger.info('Plotting Manhattan plots')
manh_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'manhattan'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(manh_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[12,8])
subpl = plt.subplot(2,1,1)
plot_manhattan(posCum=position['pos_cum'],pv=pvalues_lm[p_ID].values,chromBounds=chromBounds,thr_plotting=0.05)
plt.title('%s, LM'%p_ID)
subpl = plt.subplot(2,1,2)
plot_manhattan(posCum=position['pos_cum'],pv=pvalues_lmm[p_ID].values,chromBounds=chromBounds,thr_plotting=0.05)
plt.title('%s, LMM'%p_ID)
fig.savefig(out_file)
plt.close(fig)
# SNP vs. phenotype
logger.info('Plotting phenotype vs. SNP')
snp_pheno_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'snp_pheno'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(snp_pheno_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[3,3])#create the figure
#find maximum squared beta value
pheno_vals, s_idx = dataset.getPhenotypes([p_ID])
imax = lm.pvalues[ip].argmin()
i_0 = snps[s_idx,imax]==0
#plot SNP vs. phenotype for max beta
plt.plot(snps[s_idx,imax]+0.05*np.random.randn(snps[s_idx,imax].shape[0]),pheno_vals.values,'.',alpha=0.5)
plt.xlabel("SNP")
plt.ylabel("phenotype")
plt.xlim([-0.5,2.5])
plt.title("%s" % p_ID)
fig.savefig(out_file)
plt.close(fig)
# P-value histgrams
logger.info('Plotting P-value histograms')
pval_hist_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'pval_hist'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(pval_hist_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[7,3])
subpl = plt.subplot(1,2,1)
plt.hist(pvalues_lm[p_ID].values,20,normed=True)
plt.plot([0,1],[1,1],"r")
plt.title("%s, LM" % p_ID)
plt.xlabel("P-value")
plt.ylabel("Frequency")
subpl = plt.subplot(1,2,2)
plt.hist(pvalues_lmm[p_ID].values,20,normed=True)
plt.plot([0,1],[1,1],"r")
plt.title("%s, LMM" % p_ID)
plt.xlabel("P-value")
plt.ylabel("Frequency")
fig.savefig(out_file)
plt.close(fig)
# Quantile-Quantile plots
logger.info('Plotting Q-Q plots')
qqplot_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'qqplot'))
for ip, p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(qqplot_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[7,3])
subpl = plt.subplot(1,2,1)
qqplot(pvalues_lm[p_ID].values)
plt.title("%s, LM" % p_ID)
subpl = plt.subplot(1,2,2)
qqplot(pvalues_lmm[p_ID].values)
plt.title("%s, LMM" % p_ID)
fig.savefig(out_file)
plt.close(fig)
# P value scatter plot
logger.info('Plotting LM vs LMM P-values')
pval_lmvslmm_dir = make_sure_path_exists(os.path.join(out_graphics_dir,'pval_lmvslmm'))
for ip,p_ID in enumerate(dataset.phenotype_ID[RNA_start:RNA_end]):
out_file = os.path.join(pval_lmvslmm_dir,'%s.png'%p_ID)
fig = plt.figure(figsize=[3,3])
plt.plot(-sp.log10(pvalues_lm[p_ID]),-sp.log10(pvalues_lmm[p_ID]),'.')
ymax = max(plt.xlim()[1],plt.ylim()[1])
plt.plot([0,ymax],[0,ymax],'k--')
plt.xlabel('LM')
plt.ylabel('LMM')
plt.title(p_ID)
fig.savefig(out_file)
plt.close(fig)
logger.info('Done with all plots!')
logger.info('Done!')
def main():
geno_file = '/gale/netapp/home/shhuang/data/1001_genomes/gmi_release_v3.1/1001genomes_snp-short-indel_only_ACGTN_1kgen_filter3.hdf5'
pheno_file = '/gale/netapp/home/shhuang/data/1001_genomes/seed_size/accx_size.hdf5'
expr_file = '/gale/netapp/home/shhuang/projects/1001_genomes/ath1001_tx_norm_2016-02-06/ath1001_tx_norm_2016-02-06-UQ_gNorm_normCounts_k4_vst2T.hdf5'
out_dir = '/gale/netapp/home/shhuang/projects/1001_genomes/draw_seedsize_plots_2016-11-30'
out_graphics_dir = make_sure_path_exists(os.path.join(out_dir, 'graphics'))
graphics_prefix = os.path.join(out_graphics_dir,
'draw_seedsize_plots_2016-11-30-')
results_prefix = os.path.join(out_dir, 'draw_seedsize_plots_2016-11-30-')
logger = LoggerFactory.get_logger(os.path.join(
out_dir, 'draw_seedsize_plots_2016-11-30.log'),
file_level=logging.DEBUG,
console_level=logging.DEBUG)
logger.info('Loading genotype from %s', geno_file)
geno_reader = gr.genotype_reader_tables(geno_file)
logger.info('Loading phenotype from %s', pheno_file)
pheno_reader = phr.pheno_reader_tables(pheno_file)
pheno_reader.sample_ID = strip_xvec(pheno_reader.sample_ID)
logger.info('Loading expression from %s', expr_file)
expr_reader = phr.pheno_reader_tables(expr_file)
expr_reader.sample_ID = strip_xvec(expr_reader.sample_ID)
# the data object allows to query specific genotype or phenotype data
logger.info('Creating QTL dataset')
dataset = data.QTLData(geno_reader=geno_reader, pheno_reader=pheno_reader)
exprset = data.QTLData(geno_reader=geno_reader, pheno_reader=expr_reader)
# import data
#phenotypes,sample_idx = dataset.getPhenotypes(intersection=False)
pheno_sample_select = np.ones(pheno_reader.sample_ID.shape[0], dtype=bool)
phenotypes, pheno_sample_idx = pheno_reader.getPhenotypes(
sample_idx=pheno_sample_select)
expr_sample_select = np.ones(expr_reader.sample_ID.shape[0], dtype=bool)
expr, expr_sample_idx = expr_reader.getPhenotypes(
sample_idx=expr_sample_select)
snps = geno_reader.getGenotypes()
position = geno_reader.getPos()
position, chromBounds = data_util.estCumPos(position=position, offset=0)
gid_start, gid_end = geno_reader.getGenoIndex(chrom=4,
pos_start=(4, 13393142),
pos_end=(4, 13393144))
gid_range = np.arange(gid_start, gid_end + 1)
for ig, g_ID in enumerate(gid_range):
g_ID = gid_range[ig:(ig + 1)]
print(g_ID)
gs_idx = dataset.sample_idx["geno"].values
ps_idx = dataset.sample_idx["pheno"].values
egs_idx = exprset.sample_idx["geno"].values
eps_idx = exprset.sample_idx["pheno"].values
snps_sub = snps[np.ix_(gs_idx, g_ID)][:, 0]
phenotypes_sub = phenotypes.values[ps_idx]
esnps_sub = snps[np.ix_(egs_idx, g_ID)][:, 0]
fba5_sub = expr['AT4G26530'].values[eps_idx]
position_sub = position.iloc[[g_ID[0]]]
print(position_sub)
point_file = graphics_prefix + 'point_chr%d_%d.png' % (
position_sub['chrom'], position_sub['pos'])
fig = plt.figure(figsize=[5, 2.5]) #create the figure
plt.subplot(1, 2, 1)
plt.plot(snps_sub + 0.05 * np.random.randn(snps_sub.shape[0]),
phenotypes_sub, '.')
plt.xlabel("SNP")
plt.ylabel("Seed size")
plt.subplot(1, 2, 2)
plt.plot(esnps_sub + 0.05 * np.random.randn(esnps_sub.shape[0]),
fba5_sub, '.')
plt.xlabel("SNP")
plt.ylabel("FBA5 expression")
plt.tight_layout()
fig.savefig(point_file)
plt.close(fig)
bxp_file = graphics_prefix + 'bxp_chr%d_%d.png' % (
position_sub['chrom'], position_sub['pos'])
fig = plt.figure(figsize=[5, 2.5]) #create the figure
plt.subplot(1, 2, 1)
phenotypes_box = [
phenotypes_sub[snps_sub == 0], phenotypes_sub[snps_sub == 2]
]
plt.boxplot(phenotypes_box)
plt.xlabel("SNP")
plt.ylabel("Seed size")
plt.subplot(1, 2, 2)
fba5_box = [fba5_sub[esnps_sub == 0], fba5_sub[esnps_sub == 2]]
plt.boxplot(fba5_box)
plt.xlabel("SNP")
plt.ylabel("FBA5 expression")
plt.tight_layout()
fig.savefig(bxp_file)
plt.close(fig)