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Iris83
Iris83
Last Activity: Mar 9 '07, 10:56 AM
Joined: Feb 28 '07
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  • Iris83
    replied to Processing a Data Structure
    in Perl
    I have 2 datasets one containing data like this

    11,1,B
    12,2,B
    13,3,T
    21,4,T
    22,5,T

    From this data i want the 2nd row to be the keys in the hash and the 3th row the values.

    my 2nd data set looks like this

    1 1 1 0 0
    2 1 0 1 1
    3 1 0 1 1
    5 1 0 0 0

    for example if the first key which is 1 exists and the value is B i want to reverse...
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    • Iris83
      replied to Processing a Data Structure
      in Perl
      The syntax is indeed {1} in my script but it doesn't work!

      so any tips would be appreciated!
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      • Iris83
        replied to Processing a Data Structure
        in Perl
        Accessing The keys and values in a Hash

        Hi i want to use the keys and values of a hash to compare them with other files. But i can't acces them.

        This is my code i hope somone can help!
        Code:
        my %hash;

while( <Data> ) {
	@elements = split /,/, $_;

	if( $elements[1] ne '' ) {
		$hash{ $elements[1] } = $elements[2];
	}
}

while ($data = <Dataset>)
        ...
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        Last edited by miller; Mar 1 '07, 04:44 PM. Reason: Code Formatting

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        • Iris83
          replied to Processing a Data Structure
          in Perl
          Thank you for your help. I tried it like you said it is a hash so this is what i used but im not getting any output! I hope you can help me figure out what i should do!

          Code:
          while ($data = <Dataset>) {
	if (exists $hash{1]} {
		if ($hash{2} eq 'B') {
			for ($i = 0; $i < length($data); $i++) {
				$characterString = substr($data, $i, 1);
				$newCode = $characterString;
				if ($characterString
          ...
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          • Iris83
            started a topic Processing a Data Structure
            in Perl

            Processing a Data Structure

            Hi,

            I have a question about converting some of the data in my dataset but leave some data the way it is.

            I have a hash and if the key is present and the Value of the Hash equals B it should convert these number but if B is not present the data should remain the same.

            my output is that all the data is converted not in the only the cases were B is present.

            This is the script i have

            ...
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            Last edited by miller; Feb 28 '07, 04:03 PM. Reason: Code tag
            • Iris83
              replied to Parsing a CSV file into a Hash
              in Perl
              Thanks this works!
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              • Iris83
                started a topic Parsing a CSV file into a Hash
                in Perl

                Parsing a CSV file into a Hash

                Hi,
                Im a new to perl and i hope there are people here that can help me!

                I have a realy large file like this.
                1,12,T,
                2,13,B,
                3,14,T,
                4,15,B,

                I want to use the 2nd and 3th column and put it into a hash like

                with the 2nd column being the keys and the 3th column being the values.

                This is what i have but i doesn't work!

                open (data, 'data.csv');...
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