comparison riboseqr/ribosome_profile.py @ 0:c34c364ce75d

First commit
author Vimalkumar Velayudhan <vimal@biotechcoder.com>
date Tue, 21 Jul 2015 14:48:39 +0100
parents
children 423ad61697c4
comparison
equal deleted inserted replaced
-1:000000000000 0:c34c364ce75d
1 #!/usr/bin/env python
2 import os
3 import sys
4 import glob
5 import argparse
6 import logging
7 import rpy2.robjects as robjects
8 import utils
9
10 rscript = ''
11 R = robjects.r
12
13
14 def run_rscript(command=None):
15 """Run R command, log it, append to rscript"""
16 global rscript
17 if not command:
18 return
19 logging.debug(command)
20 rscript += '{}\n'.format(command)
21 msg = R(command)
22
23
24 def plot_transcript(rdata_load='Metagene.rda', transcript_name='',
25 transcript_length='27', transcript_cap='',
26 html_file='Plot-ribosome-profile.html',
27 output_path=os.getcwd()):
28 """Plot ribosome profile for a given transcript. """
29 options = {}
30 for key, value, rtype, rmode in (
31 ('transcript_name', transcript_name, 'str', None),
32 ('transcript_length', transcript_length, 'int', 'charvector'),
33 ('transcript_cap', transcript_cap, 'int', None)):
34 options[key] = utils.process_args(value, ret_type=rtype, ret_mode=rmode)
35
36 run_rscript('suppressMessages(library(riboSeqR))')
37 run_rscript('load("{}")'.format(rdata_load))
38
39 html = """<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
40 <html>
41 <head>
42 <title>Ribosome Profile Plot - Report</title>
43 </head>
44 <body>
45 """
46 html += '<h2>Plot ribosome profile - results</h2>\n<hr>\n'
47 if len(transcript_name):
48 cmd_args = (
49 '"{transcript_name}", main="{transcript_name}",'
50 'coordinates=ffCs@CDS, riboData=riboDat,'
51 'length={transcript_length}'.format(**options))
52 if transcript_cap:
53 cmd_args += ', cap={transcript_cap}'.format(**options)
54 plot_file = os.path.join(output_path, 'Ribosome-profile-plot')
55 for fmat in ('pdf', 'png'):
56 if fmat == 'png':
57 cmd = 'png(file="{}_%1d.png", type="cairo")'.format(plot_file)
58 else:
59 cmd = 'pdf(file="{}.pdf")'.format(plot_file)
60 run_rscript(cmd)
61 cmd = 'plotTranscript({})'.format(cmd_args)
62 run_rscript(cmd)
63 run_rscript('dev.off()')
64
65 html += ('<p>Selected ribosome footprint length: '
66 '<strong>{0}</strong>\n'.format(transcript_length))
67
68 for image in sorted(glob.glob('{}_*.png'.format(plot_file))):
69 html += '<p><img border="1" src="{0}" alt="{0}"></p>\n'.format(
70 os.path.basename(image))
71 html += '<p><a href="Ribosome-profile-plot.pdf">PDF version</a></p>\n'
72 else:
73 msg = 'No transcript name was provided. Did not generate plot.'
74 html += '<p>{}</p>'.format(msg)
75 logging.debug(msg)
76
77 logging.debug('\n{:#^80}\n{}\n{:#^80}\n'.format(
78 ' R script for this session ', rscript, ' End R script '))
79
80 with open(os.path.join(output_path, 'ribosome-profile.R'), 'w') as r:
81 r.write(rscript)
82
83 html += ('<h4>R script for this session</h4>\n'
84 '<p><a href="ribosome-profile.R">ribosome-profile.R</a></p>\n'
85 '</body>\n</html>\n')
86
87 with open(html_file, 'w') as f:
88 f.write(html)
89
90
91 if __name__ == '__main__':
92 parser = argparse.ArgumentParser(description='Plot Ribosome profile')
93
94 # required arguments
95 flags = parser.add_argument_group('required arguments')
96 flags.add_argument('--rdata_load', required=True,
97 help='Saved riboSeqR data from Step 2')
98 flags.add_argument('--transcript_name', required=True,
99 help='Name of the transcript to be plotted')
100 flags.add_argument(
101 '--transcript_length', required=True,
102 help='Size class of ribosome footprint data to be plotted',
103 default='27')
104 flags.add_argument(
105 '--transcript_cap', required=True,
106 help=('Cap on the largest value that will be plotted as an abundance '
107 'of the ribosome footprint data'))
108 parser.add_argument('--html_file', help='HTML file with reports')
109 parser.add_argument('--output_path', help='Directory to save output files')
110 parser.add_argument('--debug', help='Produce debug output',
111 action='store_true')
112
113 args = parser.parse_args()
114 if args.debug:
115 logging.basicConfig(format='%(levelname)s - %(message)s',
116 level=logging.DEBUG, stream=sys.stdout)
117 logging.debug('Supplied Arguments\n{}\n'.format(vars(args)))
118
119 if not os.path.exists(args.output_path):
120 os.mkdir(args.output_path)
121
122 plot_transcript(rdata_load=args.rdata_load,
123 transcript_name=args.transcript_name,
124 transcript_length=args.transcript_length,
125 transcript_cap=args.transcript_cap,
126 html_file=args.html_file, output_path=args.output_path)
127 logging.debug('Done!')