-- Original Message -- From: shinoj vg <[email protected]> To: <[email protected]> Date: Fri, 5 Feb 2010 07:44:56 +0530 Subject: RE: [TwinCLinG] read and count only limited characters usingphp script Please clarify your requirements. Is it: 1. Read a file that has no fixed size in chunks of 100 characters. 2. Count the occurance & recurrance of A,G,C,T in the above 100 characters. 3. Draw a bargraph for the above - 1 bargraph in a line for each 100 chars and every subsequent drawn for every set of 100 should be appended one below other. 4. Stop when count of A,G,C,T, reached the last character. Please state your specs in simple statements like above. Yes, it is true and the requirement is as stated above. with thansk & regards s.mahalingam > To: <ilughyd%40yahoogroups.com>[email protected] > From: <smal%40ccmb.res.in>[email protected] > Date: Wed, 3 Feb 2010 17:37:02 +0530 > Subject: Re: RE: [TwinCLinG] read and count only limited characters usingphp > script > > -- Original Message -- > From: shinoj vg <<shinoj%40hotmail.com>[email protected]> > To: <<ilughyd%40yahoogroups.com>[email protected]> > Date: Mon, 1 Feb 2010 20:55:11 +0530 > Subject: RE: [TwinCLinG] read and count only limited characters using php > script > I dont understand your requirements but you can try this: > while(( ($contents=fread( $handle, 100 )) != '' )) { > for ($i=0; $i<100; $i++) > {if > { > ... > } > else > if{ > .. > } > } > } > There may be a problem in the last read above. > If you are trying to count the occurance of A,G,C,T in the file using > preg_grep may be easier. > Regards, > Shinoj. > still, it reads & counts all entire characters present in the input file > instead of limited number of characters as I desire. The aim is to draw a > barcode of series of thin vertical lines with respect to its recurrence in > the input file. The preg_grep function is to search & filter the pattern from > an array which may not be exactly what I am looking for. > with regards > s.mahalingam > > To: <ilughyd%40yahoogroups.com>[email protected] > > From: <smal%40ccmb.res.in>[email protected] > > Date: Sun, 31 Jan 2010 22:44:00 +0530 > > Subject: [TwinCLinG] read and count only limited characters using php script > > > > > > > > > > Hi All > > the aim is to read and count only 100 characters from input text file > > containing characters of A, G, C, T....of 500 or more.... The PHP script > > which I appended here reads all the 500 or whatever is present in the input > > file. The help which I expect from the forum is to find and correct the > > mistake by which it can read and count only the limited number of > > characters to be set as a condition. > > <?php > > $file="co3.txt"; > > $handle=fopen($file, 'r'); > > $A=0; > > $G=0; > > $C=0; > > $T=0; > > $contents[] = ''; > > while(!feof($handle)) { > > $contents[] = fread($handle, 100); > > } > > #echo($contents); > > { $readchar=fgetc($handle); > > $readchar=strtoupper($readchar); > > for ($i=0; $i<100; $i++) > > { > > #echo ($contents[$i]); > > if($contents[$i] == 'A' ) # && ($A++ <=100)) > > { > > > > $A++; > > # if ( $A++ <= 100 ) { > > imagefilledrectangle($img, $x1, $y1, $x2, $y2, $green); > > /***to draw an image of thin vertical rectangular line for every characters > > read and counted which is secondary***/ > > $x1=$x1+6; > > $x2=$x2+6; > > } > > else > > if ($contents[$i] == 'G' ) # ($G++ <=100)) > > { > > $G++; > > # if ( $G++ <= 100 ) { > > imagefilledrectangle($img, $x1, $y1, $x2, $y2, $black); > > $x1=$x1+6; > > $x2=$x2+6; > > } > > else > > if ($contents[$i] == 'C' ) #($C++ <=100)) > > { > > > > $C++; > > # if ( $C++ <= 100 ) { > > imagefilledrectangle($img, $x1, $y1, $x2, $y2, $blue); > > $x1=$x1+6; > > $x2=$x2+6; > > } > > else > > if ($contents[$i] == 'T' ) #($T++ <=100)) > > { > > $T++; > > # if ( $T++ <= 100 ) { > > imagefilledrectangle($img, $x1, $y1, $x2, $y2, $red); > > $x1=$x1+6; > > $x2=$x2+6; > > } > > } > > fclose($handle); > > ?> > > I shall appreciate and honor your help. > > with regards > > s.mahalingam > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > ------------------------------------ > > > > ----------------------------------------------- > > Next Meeting as on our Website: <http://ilughyd.org.in>http://ilughyd.org.in > > -----------------------------------------------Yahoo! 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