Mercurial > repos > george-weingart > maaslin
diff maaslin-4450aa4ecc84/src/transpose.py @ 1:a87d5a5f2776
Uploaded the version running on the prod server
author | george-weingart |
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date | Sun, 08 Feb 2015 23:08:38 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/maaslin-4450aa4ecc84/src/transpose.py Sun Feb 08 23:08:38 2015 -0500 @@ -0,0 +1,86 @@ +#!/usr/bin/env python +####################################################################################### +# This file is provided under the Creative Commons Attribution 3.0 license. +# +# You are free to share, copy, distribute, transmit, or adapt this work +# PROVIDED THAT you attribute the work to the authors listed below. +# For more information, please see the following web page: +# http://creativecommons.org/licenses/by/3.0/ +# +# This file is a component of the SflE Scientific workFLow Environment for reproducible +# research, authored by the Huttenhower lab at the Harvard School of Public Health +# (contact Curtis Huttenhower, chuttenh@hsph.harvard.edu). +# +# If you use this environment, the included scripts, or any related code in your work, +# please let us know, sign up for the SflE user's group (sfle-users@googlegroups.com), +# pass along any issues or feedback, and we'll let you know as soon as a formal citation +# is available. +####################################################################################### + +""" +Examples +~~~~~~~~ + +``data.pcl``:: + + a b + c d + e f + +``Examples``:: + + $ transpose.py < data.pcl + a c e + b d f + + $ echo "a b c" | transpose.py + a + b + c + +.. testsetup:: + + from transpose import * +""" + +import argparse +import csv +import sys + +def transpose( aastrIn, ostm ): + """ + Outputs the matrix transpose of the input tab-delimited rows. + + :param aastrIn: Split lines from which data are read. + :type aastrIn: collection of string collections + :param ostm: Output stream to which transposed rows are written. + :type ostm: output stream + + >>> aastrIn = [list(s) for s in ("ab", "cd", "ef")] + >>> transpose( aastrIn, sys.stdout ) #doctest: +NORMALIZE_WHITESPACE + a c e + b d f + + >>> transpose( [list("abc")], sys.stdout ) #doctest: +NORMALIZE_WHITESPACE + a + b + c + """ + + aastrLines = [a for a in aastrIn] + csvw = csv.writer( ostm, csv.excel_tab ) + for iRow in range( len( aastrLines[0] ) ): + csvw.writerow( [aastrLines[iCol][iRow] for iCol in range( len( aastrLines ) )] ) + +argp = argparse.ArgumentParser( prog = "transpose.py", + description = """Transposes a tab-delimited text matrix. + +The transposition process is robust to missing elements and rows of differing lengths.""" ) +__doc__ = "::\n\n\t" + argp.format_help( ).replace( "\n", "\n\t" ) + __doc__ + +def _main( ): + args = argp.parse_args( ) + transpose( csv.reader( sys.stdin, csv.excel_tab ), sys.stdout ) + +if __name__ == "__main__": + _main( )