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Special Forums UNIX Desktop Questions & Answers Calculate average for rows in a text file Post 302669803 by Unilearn on Wednesday 11th of July 2012 10:41:40 AM
Old 07-11-2012
Calculate average for rows in a text file

Dear Gurus,

I have tab-delimited text files with matrix containing values. The first column is a identifier and other columns have the corresponding values. I would like to calculate the average value (total number/number of entries) for all entries from 2nd column to the last column in row wise.

For example,
Code:
file 1
Id per1 per2 per3 
12 34.56 -0.54 12.5 
13 0.15 -0.06 0.05 
14 0.67 0.12 0.09 
15 0.05 0.06 -0.07

Please note some values are negative numbers. I want to have a result file
Code:
ID avg
12 15.50
13 0.14 
14 0.88
15 0.04

Can somebody suggest a script to deal with this? Thanks a lot indeed.
Moderator's Comments:
Mod Comment code tags please

Last edited by jim mcnamara; 07-11-2012 at 12:26 PM..
 

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PSC(1)							      General Commands Manual							    PSC(1)

NAME
psc - prepare sc files SYNOPSIS
psc [-fLkrSPv] [-s cell] [-R n] [-C n] [-n n] [-d c] DESCRIPTION
Psc is used to prepare data for input to the spreadsheet calculator sc(1). It accepts normal ascii data on standard input. Standard out- put is a sc file. With no options, psc starts the spreadsheet in cell A0. Strings are right justified. All data on a line is entered on the same row; new input lines cause the output row number to increment by one. The default delimiters are tab and space. The column for- mats are set to one larger than the number of columns required to hold the largest value in the column. OPTIONS
-f Omit column width calculations. This option is for preparing data to be merged with an existing spreadsheet. If the option is not specified, the column widths calculated for the data read by psc will override those already set in the existing spreadsheet. -L Left justify strings. -k Keep all delimiters. This option causes the output cell to change on each new delimiter encountered in the input stream. The default action is to condense multiple delimiters to one, so that the cell only changes once per input data item. -r Output the data by row first then column. For input consisting of a single column, this option will result in output of one row with multiple columns instead of a single column spreadsheet. -s cell Start the top left corner of the spreadsheet in cell. For example, -s B33 will arrange the output data so that the spreadsheet starts in column B, row 33. -R n Increment by n on each new output row. -C n Increment by n on each new output column. -n n Output n rows before advancing to the next column. This option is used when the input is arranged in a single column and the spreadsheet is to have multiple columns, each of which is to be length n. -d c Use the single character c as the delimiter between input fields. -P Plain numbers only. A field is a number only when there is no imbedded [-+eE]. -S All numbers are strings. -v Print the version of psc SEE ALSO
sc(1) AUTHOR
Robert Bond PSC 7.16 19 September 2002 PSC(1)
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