3 column .csv --> correlation matrix; awk, perl? Post: 302670031

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

correlation coefficient - Awk

Hi guys I have an input file with multiple columns and and rows. Is it possible to calculate correlation of certain value of certain No (For example x of S1 = 112) with all other values (for example start with x 112 corr a 3 of S1 = x-a 0.2 ) INPUT ******* No S1 S2 S3 S4 Sn a 3 ...

2. UNIX for Dummies Questions & Answers

How to extract one column from csv file in perl?

Hi everyone, i am new to perl programming, i have a problem in extracting single column from csv file. the column is the 20th column, please help me.. at present i use this code #!C:/perl/bin use warnings; use strict; my $file1 = $ARGV; open FILE1, "<$file1" or die "Can't...

3. Shell Programming and Scripting

two-column data to matrix in AWK

Howdy, I need to convert an association data matrix, currently in a two-column format, into a matrix with numbers indicating the number of associations. I've been looking around for AWK code in the list, but could not find anything. Here's an example of what I want to perform: original...

4. Shell Programming and Scripting

awk? adjacency matrix to adjacency list / correlation matrix to list

Hi everyone I am very new at awk but think that that might be the best strategy for this. I have a matrix very similar to a correlation matrix and in practical terms I need to convert it into a list containing the values from the matrix (one value per line) with the first field of the line (row...

5. Shell Programming and Scripting

awk: Transpose csv row to column.

Hello, am I new to awk, and I am tryint to: INPUT FILE: "73423555","73423556","73423557","73423558","73423559" OUTPUT FILE: 73423555 73423556 73423557 73423558 73423559 My useless code so far: #!/bin/awk -F ',' BEGIN { i=0; }

6. Shell Programming and Scripting

awk read column csv and search in other csv

hi, someone to know how can i read a specific column of csv file and search the value in other csv columns if exist the value in the second csv copy entire row with all field in a new csv file. i suppose that its possible using awk but i m not expertise thanks in advance

7. Shell Programming and Scripting

Perl code to grep a particular column in CSV format

Hi I want to grep a column 6 & column 7 from a CSV Format file & then i have to find the difference between these columns as these both columns contains date & time in 7/7/2012 9:20 this format . So kindly help me out ASAP. But please kindly dis xls has to be converted in csv format as may...

8. Shell Programming and Scripting

Perl- creating a matrix from a 3 column file

Dear all, I'm new in perl scripting and I'm trying to creating a matrix from a 3 column file sorting data in a particular manner. In the final matrix I need to have the first column "IDs" on the header of the columns and the second column values on the header of each row. And the value fo the...

9. Shell Programming and Scripting

Transpose matrix based on second column using awk

Hi, Is it possible to transpose the matrix like this using awk ? Many thanks in advance Input abc Name_1 0 abc Name_2 1 abc Name_3 2 abc Name_4 0.4 def Name_1 0 def Name_2 9 def Name_3 78 def Name_4 1 Output abc def Name_1 0 ...

10. Shell Programming and Scripting

Need awk or Shell script to compare Column-1 of two different CSV files and print if column-1 matche

Example: I have files in below format file 1: zxc,133,joe@example.com cst,222,xyz@example1.com File 2 Contains: hxd hcd jws zxc cst File 1 has 50000 lines and file 2 has around 30000 lines : Expected Output has to be : hxd hcd jws

LEARN ABOUT OSX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)