annotate createControlPeakSubSet.pl @ 6:c36291280fa2 draft default tip

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author jbrayet
date Mon, 04 Jan 2016 10:40:38 -0500
parents 635bfae8de52
children
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51 #
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52 # Copyleft ↄ⃝ 2012 Institut Curie
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53 # Author(s): Valentina Boeva, Alban Lermine (Institut Curie) 2012
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54 # Contact: valentina.boeva@curie.fr, alban.lermine@curie.fr
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55 # This software is distributed under the terms of the GNU General
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56 # Public License, either Version 2, June 1991 or Version 3, June 2007.
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57
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58 #!/usr/bin/perl
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59
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60 #create a control dataset with the same number of reads as in the SAMPLE (highest peaks)
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61
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62 use strict;
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63 use warnings;
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64 use diagnostics;
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65
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66 my $usage = qq{
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67 $0
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68
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69 -----------------------------
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70 mandatory parameters:
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71
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72 -f CHiP_file
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73 -c control_file
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74 -o output file
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75 -----------------------------
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76 optional parameters:
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77
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78 -n number of files to create
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79
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80 none
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81 };
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82
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83 if(scalar(@ARGV) == 0){
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84 print $usage;
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85 exit(0);
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86 }
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87
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88 ## mandatory arguments
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89
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90 my $filename = "";
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91 my $output_fname = "";
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92
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93 my $controlFilename = "";
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94
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95 my $nBootstrap = 1;
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96
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97
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98 ## optional arguments
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99
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100 ## parse command line arguments
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101
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102 while(scalar(@ARGV) > 0){
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103 my $this_arg = shift @ARGV;
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104 if ( $this_arg eq '-h') {print "$usage\n"; exit; }
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105
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106 elsif ( $this_arg eq '-f') {$filename = shift @ARGV;}
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107 elsif ( $this_arg eq '-c') {$controlFilename = shift @ARGV;}
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108 elsif ( $this_arg eq '-o') {$output_fname = shift @ARGV;}
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109 elsif ( $this_arg eq '-n') {$nBootstrap = shift @ARGV;}
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110
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111 elsif ( $this_arg =~ m/^-/ ) { print "unknown flag: $this_arg\n";}
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112 }
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113
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114 if ( $filename eq ""){
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115 die "you should specify chip file\n";
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116 }
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117 if( $controlFilename eq ""){
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118 die "you should specify control file\n";
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119 }
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120
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121 if( $output_fname eq ""){
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122 die "you should specify output filename\n";
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123 }
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124
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125
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126 print "\n-----------------\n\n";
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127
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128 my %hash;
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129 my $chipCount = 0;
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130 my @header;
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131 open FILE, "< $filename " || die "$filename : $!\n";
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132 while(<FILE>){
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133 $chipCount++;
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134 }
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135 close FILE;
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136 #print "ChIP: $chipCount\n";
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137
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138
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139 my $controlCount = 0;
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140
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141 open FILE, "< $controlFilename " || die "$controlFilename : $!\n";
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142 while(<FILE>){
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143 next if (/track/);
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144 my $entry = $_;
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145 my @fields = split(/\t/,$_);
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146 $hash{$entry} = $fields[4];
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147 $controlCount++;
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148 }
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149 #print "controlCount : $controlCount\n";
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150
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151 close FILE;
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152 open OUT, "> $output_fname" || die "$output_fname: $!\n";
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153 my $count = 0;
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154 if ($controlCount>$chipCount) {
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155 for my $entry (sort {$hash{$b}<=>$hash{$a}} keys %hash) {
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156 print OUT $entry;
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157 $count++;
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158 if ($count >=$chipCount) {
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159 last;
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160 }
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161 }
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162
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163 } else {
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164 for my $entry (keys %hash) {
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165 print OUT $entry;
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166 }
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167 }
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168
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169 close OUT;
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170
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171
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172 for my $try (2..$nBootstrap) {
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173
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174 open OUT, "> $output_fname$try" || die "$output_fname$try: $!\n";
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175 my $count = 0;
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176 if ($controlCount>$chipCount) {
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177 my $prob = $chipCount/$controlCount*1.1;
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178 for my $entry (sort {$hash{$b}<=>$hash{$a}} keys %hash) {
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179 my $yes = rand();
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180 if ($yes<=$prob) {$yes=1;}else {$yes=0;}
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181 if ($yes) {
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182 print OUT $entry ;
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183 $count++;
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184 }
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185
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186 if ($count >=$chipCount ) {
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187 last;
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188 }
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189 }
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190 if ($count <$chipCount) { #do it again!
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191
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192 for my $entry (sort {$hash{$b}<=>$hash{$a}} keys %hash) {
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193 my $yes = rand();
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jbrayet
parents:
diff changeset
194 if ($yes<=$prob) {$yes=1;}else {$yes=0;}
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jbrayet
parents:
diff changeset
195 if ($yes) {
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jbrayet
parents:
diff changeset
196 print OUT $entry ;
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jbrayet
parents:
diff changeset
197 $count++;
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jbrayet
parents:
diff changeset
198 }
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jbrayet
parents:
diff changeset
199
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jbrayet
parents:
diff changeset
200 if ($count >=$chipCount ) {
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jbrayet
parents:
diff changeset
201 last;
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jbrayet
parents:
diff changeset
202 }
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jbrayet
parents:
diff changeset
203 }
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jbrayet
parents:
diff changeset
204
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jbrayet
parents:
diff changeset
205 }
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jbrayet
parents:
diff changeset
206
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jbrayet
parents:
diff changeset
207 } else {
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jbrayet
parents:
diff changeset
208 for my $entry (keys %hash) {
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jbrayet
parents:
diff changeset
209 print OUT $entry;
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jbrayet
parents:
diff changeset
210 }
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jbrayet
parents:
diff changeset
211 }
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jbrayet
parents:
diff changeset
212
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jbrayet
parents:
diff changeset
213 close OUT;
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jbrayet
parents:
diff changeset
214
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jbrayet
parents:
diff changeset
215 }