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Top Forums Shell Programming and Scripting Awk: conversion of matrix formats Post 302780899 by Don Cragun on Friday 15th of March 2013 09:18:52 AM
Old 03-15-2013
Quote:
Originally Posted by dietmar13
dear don cragun,

i use the table for another program, therefore i don't need a pretty print. I need tab's.

and there i found another little problem,
after each line there seems to be a tab, but I don't need this tab for the last field in each line.

how can i easily replace the last tab with a newline.

Code:
fn=$1
fname=${fn%.*}
echo $fname

awk 'BEGIN {FS="\t"};
    NF >= 3 {HD[$1]++; HD[$3]++; PP[$1,$3] = PP[$3,$1] = 1 }
    END    {printf "\t"
        for (i in HD) { printf "%s\t" ,i } printf "\n" #<- here replace the tab with newline
        for (i in HD) {printf "%s\t", i ;
            for (j in HD) { printf "%s\t", PP[i,j]?PP[i,j]:"0" } printf "\n" #<- here replace the last tab with newline
            } }' $fn > $fname.adj

Please look again at the script I suggested in my last post in this thread. It got rid of the trailing tabs. The spots marked in red above are the areas that need to change to get rid of trailing tabs.

The BEGIN clause marked in green above does not match the sample input you provided, so I took it out. If you really have tab delimiters in your input AND have spaces in some of your field names, put that clause back in the script I provided. The ++'s marked in orange don't affect the output of your program, but will make it run a little slower. (It won't be noticeable with your sample data, but if you have millions of lines of input, it will make a difference. You will note that I removed them in the script I provided.)
This User Gave Thanks to Don Cragun For This Post:
 

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XmTabList(library call) 												   XmTabList(library call)

NAME
XmTabList -- Data type for a tab list SYNOPSIS
#include <Xm/Xm.h> XmTabList DESCRIPTION
XmTabList is the data type for a tab list. A tab list consists of tab stop list entries (XmTabs). Whenever a tab component is encountered while an XmString is being rendered, the origin of the next X draw depends on the next XmTab. If a tab stop would cause text to overlap, the x position for the segment is reset to follow immediately after the end of the previous segment. Tab lists are specified in resource files with the following syntax: resource_spec: tab WHITESPACE [, WHITESPACE tab ]* The resource value string consists of one or more tabs separated by commas. Each tab identifies the value of the tab, the unit type, and whether the offset is relative or absolute. For example: tab := float [ WHITESPACE units ] float := [ sign ] [[ DIGIT]*. ]DIGIT+ sign := + where the presence or absence of sign indicates, respectively, a relative offset or an absolute offset. Note that negative tab values are not allowed. units indicates the unitType to use as described in the XmConvertUnits reference page. For example, the following specifies a tab list consisting of a one inch absolute tab followed by a one inch relative tab: *tabList: 1in, +1in For resources of type, dimension, or position, you can specify units as described in the XmNunitType resource of the XmGadget, XmManager, or XmPrimitive reference page. RELATED
Refer to the Motif Programmer's Guide for more information about tabs and tab lists. XmTabListCopy(3), XmTabListFree(3), XmTabListGet- Tab(3), XmTabListInsertTabs(3), XmTabListRemoveTabs(3), XmTabListReplacePositions(3), and XmTabListTabCount(3). XmTabList(library call)
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