changeset 0:4dadd821722f draft

Imported from capsule None
author devteam
date Mon, 28 Jul 2014 11:30:22 -0400
parents
children d3f10c90fc96
files column_maker.py column_maker.xml test-data/1.bed test-data/1.interval test-data/column_maker_out1.interval test-data/column_maker_out2.interval test-data/column_maker_out3.interval
diffstat 7 files changed, 353 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/column_maker.py	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,125 @@
+#!/usr/bin/env python
+# This tool takes a tab-delimited textfile as input and creates another column in the file which is the result of
+# a computation performed on every row in the original file.  The tool will skip over invalid lines within the file,
+# informing the user about the number of lines skipped.
+
+import sys, re
+# These functions may be used in compute expression:
+from math import log,exp,sqrt,ceil,floor
+
+
+assert sys.version_info[:2] >= ( 2, 4 )
+
+def stop_err( msg ):
+    sys.stderr.write( msg )
+    sys.exit()
+
+inp_file = sys.argv[1]
+out_file = sys.argv[2]
+expr = sys.argv[3]
+round_result = sys.argv[4]
+try:
+    in_columns = int( sys.argv[5] )
+except:
+    stop_err( "Missing or invalid 'columns' metadata value, click the pencil icon in the history item and select the Auto-detect option to correct it.  This tool can only be used with tab-delimited data." )
+if in_columns < 2:
+    # To be considered tabular, data must fulfill requirements of the sniff.is_column_based() method.
+    stop_err( "Missing or invalid 'columns' metadata value, click the pencil icon in the history item and select the Auto-detect option to correct it.  This tool can only be used with tab-delimited data." )
+try:
+    in_column_types = sys.argv[6].split( ',' )
+except:
+    stop_err( "Missing or invalid 'column_types' metadata value, click the pencil icon in the history item and select the Auto-detect option to correct it.  This tool can only be used with tab-delimited data." )
+if len( in_column_types ) != in_columns:
+    stop_err( "The 'columns' metadata setting does not conform to the 'column_types' metadata setting, click the pencil icon in the history item and select the Auto-detect option to correct it.  This tool can only be used with tab-delimited data." )
+    
+# Unescape if input has been escaped
+mapped_str = {
+    '__lt__': '<',
+    '__le__': '<=',
+    '__eq__': '==',
+    '__ne__': '!=',
+    '__gt__': '>',
+    '__ge__': '>=',
+    '__sq__': '\'',
+    '__dq__': '"',
+}
+for key, value in mapped_str.items():
+    expr = expr.replace( key, value )
+
+operators = 'is|not|or|and'
+builtin_and_math_functions = 'abs|all|any|bin|chr|cmp|complex|divmod|float|hex|int|len|long|max|min|oct|ord|pow|range|reversed|round|sorted|str|sum|type|unichr|unicode|log|exp|sqrt|ceil|floor'
+string_and_list_methods = [ name for name in dir('') + dir([]) if not name.startswith('_') ]
+whitelist = "^([c0-9\+\-\*\/\(\)\.\'\"><=,:! ]|%s|%s|%s)*$" % (operators, builtin_and_math_functions, '|'.join(string_and_list_methods))
+if not re.compile(whitelist).match(expr):
+    stop_err("Invalid expression")
+
+# Prepare the column variable names and wrappers for column data types
+cols, type_casts = [], []
+for col in range( 1, in_columns + 1 ):
+    col_name = "c%d" % col
+    cols.append( col_name )
+    col_type = in_column_types[ col - 1 ].strip()
+    if round_result == 'no' and col_type == 'int':
+        col_type = 'float'
+    type_cast = "%s(%s)" % ( col_type, col_name )
+    type_casts.append( type_cast )
+        
+col_str = ', '.join( cols )    # 'c1, c2, c3, c4'
+type_cast_str = ', '.join( type_casts )  # 'str(c1), int(c2), int(c3), str(c4)'
+assign = "%s = line.split( '\\t' )" % col_str
+wrap = "%s = %s" % ( col_str, type_cast_str )
+skipped_lines = 0
+first_invalid_line = 0
+invalid_line = None
+lines_kept = 0
+total_lines = 0
+out = open( out_file, 'wt' )
+
+# Read input file, skipping invalid lines, and perform computation that will result in a new column
+code = '''
+for i, line in enumerate( file( inp_file ) ):
+    total_lines += 1
+    line = line.rstrip( '\\r\\n' )
+    if not line or line.startswith( '#' ):
+        skipped_lines += 1
+        if not invalid_line:
+            first_invalid_line = i + 1
+            invalid_line = line
+        continue
+    try:
+        %s
+        %s
+        new_val = %s
+        if round_result == "yes":
+            new_val = int( round( new_val ) )
+        new_line = line + '\\t' + str( new_val )
+        print >> out, new_line
+        lines_kept += 1
+    except:
+        skipped_lines += 1
+        if not invalid_line:
+            first_invalid_line = i + 1
+            invalid_line = line
+''' % ( assign, wrap, expr )
+
+valid_expr = True
+try:
+    exec code
+except Exception, e:
+    out.close()
+    if str( e ).startswith( 'invalid syntax' ):
+        valid_expr = False
+        stop_err( 'Expression "%s" likely invalid. See tool tips, syntax and examples.' % expr )
+    else:
+        stop_err( str( e ) )
+
+if valid_expr:
+    out.close()
+    valid_lines = total_lines - skipped_lines
+    print 'Creating column %d with expression %s' % ( in_columns + 1, expr )
+    if valid_lines > 0:
+        print 'kept %4.2f%% of %d lines.' % ( 100.0*lines_kept/valid_lines, total_lines )
+    else:
+        print 'Possible invalid expression "%s" or non-existent column referenced. See tool tips, syntax and examples.' % expr
+    if skipped_lines > 0:
+        print 'Skipped %d invalid lines starting at line #%d: "%s"' % ( skipped_lines, first_invalid_line, invalid_line )
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/column_maker.xml	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,83 @@
+<tool id="Add_a_column1" name="Compute" version="1.1.0">
+  <description>an expression on every row</description>
+  <command interpreter="python">
+    column_maker.py $input $out_file1 "$cond" $round ${input.metadata.columns} "${input.metadata.column_types}"
+  </command>
+  <inputs>
+    <param name="cond" size="40" type="text" value="c3-c2" label="Add expression"/>
+    <param format="tabular" name="input" type="data" label="as a new column to" help="Dataset missing? See TIP below"/>
+    <param name="round" type="select" label="Round result?">
+      <option value="no">NO</option>
+      <option value="yes">YES</option>
+    </param>    
+  </inputs>
+  <outputs>
+    <data format="input" name="out_file1" metadata_source="input"/>
+  </outputs>
+  <tests>
+    <test>
+      <param name="cond" value="c3-c2"/>
+      <param name="input" value="1.bed"/>
+      <param name="round" value="no"/>
+      <output name="out_file1" file="column_maker_out1.interval"/>
+    </test>
+    <test>
+      <param name="cond" value="c4*1"/>
+      <param name="input" value="1.interval"/>
+      <param name="round" value="no"/>
+      <output name="out_file1" file="column_maker_out2.interval"/>
+    </test>
+    <test>
+      <param name="cond" value="c4*1"/>
+      <param name="input" value="1.interval"/>
+      <param name="round" value="yes"/>
+      <output name="out_file1" file="column_maker_out3.interval"/>
+    </test>
+  </tests>
+  <help>
+
+ .. class:: infomark
+
+**TIP:** If your data is not TAB delimited, use *Text Manipulation-&gt;Convert*
+
+-----
+
+**What it does**
+
+This tool computes an expression for every row of a dataset and appends the result as a new column (field).
+
+- Columns are referenced with **c** and a **number**. For example, **c1** refers to the first column of a tab-delimited file
+
+- **c3-c2** will add a length column to the dataset if **c2** and **c3** are start and end position
+
+-----
+
+**Example**
+
+If this is your input::
+
+   chr1  151077881  151077918  2  200  -
+   chr1  151081985  151082078  3  500  +
+
+computing "c4*c5" will produce::
+
+   chr1  151077881  151077918  2  200  -   400.0
+   chr1  151081985  151082078  3  500  +  1500.0
+    
+if, at the same time, "Round result?" is set to **YES** results will look like this::
+
+   chr1  151077881  151077918  2  200  -   400
+   chr1  151081985  151082078  3  500  +  1500
+
+You can also use this tool to evaluate expressions. For example, computing "c3>=c2" for Input will result in the following::
+
+   chr1  151077881  151077918  2  200  -  True
+   chr1  151081985  151082078  3  500  +  True
+
+or computing "type(c2)==type('') for Input will return::
+
+   chr1  151077881  151077918  2  200  -  False
+   chr1  151081985  151082078  3  500  +  False
+
+</help>
+</tool>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/1.bed	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,65 @@
+chr1	147962192	147962580	CCDS989.1_cds_0_0_chr1_147962193_r	0	-
+chr1	147984545	147984630	CCDS990.1_cds_0_0_chr1_147984546_f	0	+
+chr1	148078400	148078582	CCDS993.1_cds_0_0_chr1_148078401_r	0	-
+chr1	148185136	148185276	CCDS996.1_cds_0_0_chr1_148185137_f	0	+
+chr10	55251623	55253124	CCDS7248.1_cds_0_0_chr10_55251624_r	0	-
+chr11	116124407	116124501	CCDS8374.1_cds_0_0_chr11_116124408_r	0	-
+chr11	116206508	116206563	CCDS8377.1_cds_0_0_chr11_116206509_f	0	+
+chr11	116211733	116212337	CCDS8378.1_cds_0_0_chr11_116211734_r	0	-
+chr11	1812377	1812407	CCDS7726.1_cds_0_0_chr11_1812378_f	0	+
+chr12	38440094	38440321	CCDS8736.1_cds_0_0_chr12_38440095_r	0	-
+chr13	112381694	112381953	CCDS9526.1_cds_0_0_chr13_112381695_f	0	+
+chr14	98710240	98712285	CCDS9949.1_cds_0_0_chr14_98710241_r	0	-
+chr15	41486872	41487060	CCDS10096.1_cds_0_0_chr15_41486873_r	0	-
+chr15	41673708	41673857	CCDS10097.1_cds_0_0_chr15_41673709_f	0	+
+chr15	41679161	41679250	CCDS10098.1_cds_0_0_chr15_41679162_r	0	-
+chr15	41826029	41826196	CCDS10101.1_cds_0_0_chr15_41826030_f	0	+
+chr16	142908	143003	CCDS10397.1_cds_0_0_chr16_142909_f	0	+
+chr16	179963	180135	CCDS10401.1_cds_0_0_chr16_179964_r	0	-
+chr16	244413	244681	CCDS10402.1_cds_0_0_chr16_244414_f	0	+
+chr16	259268	259383	CCDS10403.1_cds_0_0_chr16_259269_r	0	-
+chr18	23786114	23786321	CCDS11891.1_cds_0_0_chr18_23786115_r	0	-
+chr18	59406881	59407046	CCDS11985.1_cds_0_0_chr18_59406882_f	0	+
+chr18	59455932	59456337	CCDS11986.1_cds_0_0_chr18_59455933_r	0	-
+chr18	59600586	59600754	CCDS11988.1_cds_0_0_chr18_59600587_f	0	+
+chr19	59068595	59069564	CCDS12866.1_cds_0_0_chr19_59068596_f	0	+
+chr19	59236026	59236146	CCDS12872.1_cds_0_0_chr19_59236027_r	0	-
+chr19	59297998	59298008	CCDS12877.1_cds_0_0_chr19_59297999_f	0	+
+chr19	59302168	59302288	CCDS12878.1_cds_0_0_chr19_59302169_r	0	-
+chr2	118288583	118288668	CCDS2120.1_cds_0_0_chr2_118288584_f	0	+
+chr2	118394148	118394202	CCDS2121.1_cds_0_0_chr2_118394149_r	0	-
+chr2	220190202	220190242	CCDS2441.1_cds_0_0_chr2_220190203_f	0	+
+chr2	220229609	220230869	CCDS2443.1_cds_0_0_chr2_220229610_r	0	-
+chr20	33330413	33330423	CCDS13249.1_cds_0_0_chr20_33330414_r	0	-
+chr20	33513606	33513792	CCDS13255.1_cds_0_0_chr20_33513607_f	0	+
+chr20	33579500	33579527	CCDS13256.1_cds_0_0_chr20_33579501_r	0	-
+chr20	33593260	33593348	CCDS13257.1_cds_0_0_chr20_33593261_f	0	+
+chr21	32707032	32707192	CCDS13614.1_cds_0_0_chr21_32707033_f	0	+
+chr21	32869641	32870022	CCDS13615.1_cds_0_0_chr21_32869642_r	0	-
+chr21	33321040	33322012	CCDS13620.1_cds_0_0_chr21_33321041_f	0	+
+chr21	33744994	33745040	CCDS13625.1_cds_0_0_chr21_33744995_r	0	-
+chr22	30120223	30120265	CCDS13897.1_cds_0_0_chr22_30120224_f	0	+
+chr22	30160419	30160661	CCDS13898.1_cds_0_0_chr22_30160420_r	0	-
+chr22	30665273	30665360	CCDS13901.1_cds_0_0_chr22_30665274_f	0	+
+chr22	30939054	30939266	CCDS13903.1_cds_0_0_chr22_30939055_r	0	-
+chr5	131424298	131424460	CCDS4149.1_cds_0_0_chr5_131424299_f	0	+
+chr5	131556601	131556672	CCDS4151.1_cds_0_0_chr5_131556602_r	0	-
+chr5	131621326	131621419	CCDS4152.1_cds_0_0_chr5_131621327_f	0	+
+chr5	131847541	131847666	CCDS4155.1_cds_0_0_chr5_131847542_r	0	-
+chr6	108299600	108299744	CCDS5061.1_cds_0_0_chr6_108299601_r	0	-
+chr6	108594662	108594687	CCDS5063.1_cds_0_0_chr6_108594663_f	0	+
+chr6	108640045	108640151	CCDS5064.1_cds_0_0_chr6_108640046_r	0	-
+chr6	108722976	108723115	CCDS5067.1_cds_0_0_chr6_108722977_f	0	+
+chr7	113660517	113660685	CCDS5760.1_cds_0_0_chr7_113660518_f	0	+
+chr7	116512159	116512389	CCDS5771.1_cds_0_0_chr7_116512160_r	0	-
+chr7	116714099	116714152	CCDS5773.1_cds_0_0_chr7_116714100_f	0	+
+chr7	116945541	116945787	CCDS5774.1_cds_0_0_chr7_116945542_r	0	-
+chr8	118881131	118881317	CCDS6324.1_cds_0_0_chr8_118881132_r	0	-
+chr9	128764156	128764189	CCDS6914.1_cds_0_0_chr9_128764157_f	0	+
+chr9	128787519	128789136	CCDS6915.1_cds_0_0_chr9_128787520_r	0	-
+chr9	128882427	128882523	CCDS6917.1_cds_0_0_chr9_128882428_f	0	+
+chr9	128937229	128937445	CCDS6919.1_cds_0_0_chr9_128937230_r	0	-
+chrX	122745047	122745924	CCDS14606.1_cds_0_0_chrX_122745048_f	0	+
+chrX	152648964	152649196	CCDS14733.1_cds_0_0_chrX_152648965_r	0	-
+chrX	152691446	152691471	CCDS14735.1_cds_0_0_chrX_152691447_f	0	+
+chrX	152694029	152694263	CCDS14736.1_cds_0_0_chrX_152694030_r	0	-
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/1.interval	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,5 @@
+chr1	4348187	4348589	3.70	4.90	2.55	0.24	0.46
+chr1	4488177	4488442	4.03	5.77	1.92	-0.67	0.81
+chr1	4774091	4774440	8.07	8.33	7.82	0.85	-0.40
+chr1	4800122	4800409	6.40	7.35	5.44	1.19	-0.42
+chr1	4878925	4879277	2.18	0.28	4.93	-0.96	1.24
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/column_maker_out1.interval	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,65 @@
+chr1	147962192	147962580	CCDS989.1_cds_0_0_chr1_147962193_r	0	-	388.0
+chr1	147984545	147984630	CCDS990.1_cds_0_0_chr1_147984546_f	0	+	85.0
+chr1	148078400	148078582	CCDS993.1_cds_0_0_chr1_148078401_r	0	-	182.0
+chr1	148185136	148185276	CCDS996.1_cds_0_0_chr1_148185137_f	0	+	140.0
+chr10	55251623	55253124	CCDS7248.1_cds_0_0_chr10_55251624_r	0	-	1501.0
+chr11	116124407	116124501	CCDS8374.1_cds_0_0_chr11_116124408_r	0	-	94.0
+chr11	116206508	116206563	CCDS8377.1_cds_0_0_chr11_116206509_f	0	+	55.0
+chr11	116211733	116212337	CCDS8378.1_cds_0_0_chr11_116211734_r	0	-	604.0
+chr11	1812377	1812407	CCDS7726.1_cds_0_0_chr11_1812378_f	0	+	30.0
+chr12	38440094	38440321	CCDS8736.1_cds_0_0_chr12_38440095_r	0	-	227.0
+chr13	112381694	112381953	CCDS9526.1_cds_0_0_chr13_112381695_f	0	+	259.0
+chr14	98710240	98712285	CCDS9949.1_cds_0_0_chr14_98710241_r	0	-	2045.0
+chr15	41486872	41487060	CCDS10096.1_cds_0_0_chr15_41486873_r	0	-	188.0
+chr15	41673708	41673857	CCDS10097.1_cds_0_0_chr15_41673709_f	0	+	149.0
+chr15	41679161	41679250	CCDS10098.1_cds_0_0_chr15_41679162_r	0	-	89.0
+chr15	41826029	41826196	CCDS10101.1_cds_0_0_chr15_41826030_f	0	+	167.0
+chr16	142908	143003	CCDS10397.1_cds_0_0_chr16_142909_f	0	+	95.0
+chr16	179963	180135	CCDS10401.1_cds_0_0_chr16_179964_r	0	-	172.0
+chr16	244413	244681	CCDS10402.1_cds_0_0_chr16_244414_f	0	+	268.0
+chr16	259268	259383	CCDS10403.1_cds_0_0_chr16_259269_r	0	-	115.0
+chr18	23786114	23786321	CCDS11891.1_cds_0_0_chr18_23786115_r	0	-	207.0
+chr18	59406881	59407046	CCDS11985.1_cds_0_0_chr18_59406882_f	0	+	165.0
+chr18	59455932	59456337	CCDS11986.1_cds_0_0_chr18_59455933_r	0	-	405.0
+chr18	59600586	59600754	CCDS11988.1_cds_0_0_chr18_59600587_f	0	+	168.0
+chr19	59068595	59069564	CCDS12866.1_cds_0_0_chr19_59068596_f	0	+	969.0
+chr19	59236026	59236146	CCDS12872.1_cds_0_0_chr19_59236027_r	0	-	120.0
+chr19	59297998	59298008	CCDS12877.1_cds_0_0_chr19_59297999_f	0	+	10.0
+chr19	59302168	59302288	CCDS12878.1_cds_0_0_chr19_59302169_r	0	-	120.0
+chr2	118288583	118288668	CCDS2120.1_cds_0_0_chr2_118288584_f	0	+	85.0
+chr2	118394148	118394202	CCDS2121.1_cds_0_0_chr2_118394149_r	0	-	54.0
+chr2	220190202	220190242	CCDS2441.1_cds_0_0_chr2_220190203_f	0	+	40.0
+chr2	220229609	220230869	CCDS2443.1_cds_0_0_chr2_220229610_r	0	-	1260.0
+chr20	33330413	33330423	CCDS13249.1_cds_0_0_chr20_33330414_r	0	-	10.0
+chr20	33513606	33513792	CCDS13255.1_cds_0_0_chr20_33513607_f	0	+	186.0
+chr20	33579500	33579527	CCDS13256.1_cds_0_0_chr20_33579501_r	0	-	27.0
+chr20	33593260	33593348	CCDS13257.1_cds_0_0_chr20_33593261_f	0	+	88.0
+chr21	32707032	32707192	CCDS13614.1_cds_0_0_chr21_32707033_f	0	+	160.0
+chr21	32869641	32870022	CCDS13615.1_cds_0_0_chr21_32869642_r	0	-	381.0
+chr21	33321040	33322012	CCDS13620.1_cds_0_0_chr21_33321041_f	0	+	972.0
+chr21	33744994	33745040	CCDS13625.1_cds_0_0_chr21_33744995_r	0	-	46.0
+chr22	30120223	30120265	CCDS13897.1_cds_0_0_chr22_30120224_f	0	+	42.0
+chr22	30160419	30160661	CCDS13898.1_cds_0_0_chr22_30160420_r	0	-	242.0
+chr22	30665273	30665360	CCDS13901.1_cds_0_0_chr22_30665274_f	0	+	87.0
+chr22	30939054	30939266	CCDS13903.1_cds_0_0_chr22_30939055_r	0	-	212.0
+chr5	131424298	131424460	CCDS4149.1_cds_0_0_chr5_131424299_f	0	+	162.0
+chr5	131556601	131556672	CCDS4151.1_cds_0_0_chr5_131556602_r	0	-	71.0
+chr5	131621326	131621419	CCDS4152.1_cds_0_0_chr5_131621327_f	0	+	93.0
+chr5	131847541	131847666	CCDS4155.1_cds_0_0_chr5_131847542_r	0	-	125.0
+chr6	108299600	108299744	CCDS5061.1_cds_0_0_chr6_108299601_r	0	-	144.0
+chr6	108594662	108594687	CCDS5063.1_cds_0_0_chr6_108594663_f	0	+	25.0
+chr6	108640045	108640151	CCDS5064.1_cds_0_0_chr6_108640046_r	0	-	106.0
+chr6	108722976	108723115	CCDS5067.1_cds_0_0_chr6_108722977_f	0	+	139.0
+chr7	113660517	113660685	CCDS5760.1_cds_0_0_chr7_113660518_f	0	+	168.0
+chr7	116512159	116512389	CCDS5771.1_cds_0_0_chr7_116512160_r	0	-	230.0
+chr7	116714099	116714152	CCDS5773.1_cds_0_0_chr7_116714100_f	0	+	53.0
+chr7	116945541	116945787	CCDS5774.1_cds_0_0_chr7_116945542_r	0	-	246.0
+chr8	118881131	118881317	CCDS6324.1_cds_0_0_chr8_118881132_r	0	-	186.0
+chr9	128764156	128764189	CCDS6914.1_cds_0_0_chr9_128764157_f	0	+	33.0
+chr9	128787519	128789136	CCDS6915.1_cds_0_0_chr9_128787520_r	0	-	1617.0
+chr9	128882427	128882523	CCDS6917.1_cds_0_0_chr9_128882428_f	0	+	96.0
+chr9	128937229	128937445	CCDS6919.1_cds_0_0_chr9_128937230_r	0	-	216.0
+chrX	122745047	122745924	CCDS14606.1_cds_0_0_chrX_122745048_f	0	+	877.0
+chrX	152648964	152649196	CCDS14733.1_cds_0_0_chrX_152648965_r	0	-	232.0
+chrX	152691446	152691471	CCDS14735.1_cds_0_0_chrX_152691447_f	0	+	25.0
+chrX	152694029	152694263	CCDS14736.1_cds_0_0_chrX_152694030_r	0	-	234.0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/column_maker_out2.interval	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,5 @@
+chr1	4348187	4348589	3.70	4.90	2.55	0.24	0.46	3.7
+chr1	4488177	4488442	4.03	5.77	1.92	-0.67	0.81	4.03
+chr1	4774091	4774440	8.07	8.33	7.82	0.85	-0.40	8.07
+chr1	4800122	4800409	6.40	7.35	5.44	1.19	-0.42	6.4
+chr1	4878925	4879277	2.18	0.28	4.93	-0.96	1.24	2.18
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/column_maker_out3.interval	Mon Jul 28 11:30:22 2014 -0400
@@ -0,0 +1,5 @@
+chr1	4348187	4348589	3.70	4.90	2.55	0.24	0.46	4
+chr1	4488177	4488442	4.03	5.77	1.92	-0.67	0.81	4
+chr1	4774091	4774440	8.07	8.33	7.82	0.85	-0.40	8
+chr1	4800122	4800409	6.40	7.35	5.44	1.19	-0.42	6
+chr1	4878925	4879277	2.18	0.28	4.93	-0.96	1.24	2