awk permutations and combinations Post: 302990860

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1. Shell Programming and Scripting

Awk execution with more combinations..

The requirement is to extract 9 fields randomly from a 13 field CSV file to make another CSV file. While doing that, the field 7 and 8 of input csv file should comeout as field 7 of output with the value as first charecters of both 7 and 8 fields of input file(CSV file). Presently I am using...

2. UNIX for Advanced & Expert Users

Combinations

Hello All, i have two files, one of the format A 123 B 124 C 234 D 345 And the other A 678 B 789 C 689 D 567 I would like to combine them into one file with three columns: A 123 678 B 124 789 C 234 689

3. Shell Programming and Scripting

Printing all combinations : Awk

$ cat key.txt #ID1 Start 1|AA1 2|AA2 3|AA3 4|AA4 #ID1 Complete #ID2 Start 1|BB1 2|BB2 3|BB3 #ID2 Complete I was required this output: AA1|BB1 AA1|BB2 AA1|BB3

4. Shell Programming and Scripting

Combinations / Permutations

Hello Scrutinizer / Group , The shell script of awk that Scrutinizer made calculate all possible permutations in this case 3125 (5 numbers) but i want to have only the 126 possible combination. For now it does not matter the specific order of the combination numbers. I would appreciate it you...

5. Shell Programming and Scripting

awk -- print combinations for 2 cols

Dear all, could you please help me with awk please? I have such input: Input: a d b e c f The number of lines is unknown before reading the file. I need to print possible combination between the two columns like this: Output: a d b d c d a e b e c e a f

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All possible combinations

Hi, I have an input file like this a b c d I want to print all possible combinations between these records in the following way aVSb aVSc aVSd bVSc bVSd cVSd VS indicates versus. All thoughts are appreciated.

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Creating all possible bi-combinations of a list with grep/awk

I have a 1-column file such as the example below: flower cat dog pizza car book I want to create a second column in which all possible 2-item combinations of column one are outputted in 2 tab-separated columns, such as: flower flower cat flower dog flower pizza ...

8. UNIX for Dummies Questions & Answers

Generating all possible combinations of values in field 1 (awk)

Input: A|1 B|2 C|3 D|4 Output: A+B|3 A+C|4 A+D|5 B+C|5 B+D|6 C+D|7 A+B+C|6 A+B+D|7 A+C+D|8 B+C+D|9 A+B+C+D|10 I only managed to get the output for pairs of $1 values (i.e. combination of length 2):

9. Shell Programming and Scripting

Permutations with awk

Hello I have a very simple input file in which there are a list of numbers: 1 2 3 4 5 6 7 8 9 10 My actual dataset is about 200 lines long. I was wondering how to add different permutations of 3 numbers for all the numbers in the dataset. For example: 1+2+3; 3+5+7; 2+8+1; 9+3+4...

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awk - function to return permutations of n items out of m

Hi, I'm trying to write an awk function that returns all possible permutations of n items chosen in a list of m items. For example, given the input "a,b,c,d,e" and 3, the function should return the following : a a a a a b a a c a b a a b b ... c a a c a b ... e e c e e d e e e (125...

LEARN ABOUT DEBIAN

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)

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1. Shell Programming and Scripting

Awk execution with more combinations..

Discussion started by: mitte_dino

2. UNIX for Advanced & Expert Users

Combinations

Discussion started by: Khoomfire

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Printing all combinations : Awk

Discussion started by: jkl_jkl

4. Shell Programming and Scripting

Combinations / Permutations

Discussion started by: csierra