Need to Preprocess a text file and convert into csv Post: 302952698

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Top Forums Shell Programming and Scripting Need to Preprocess a text file and convert into csv Post 302952698 by ajayram on Friday 21st of August 2015 02:57:11 AM

08-21-2015

Registered User

Need to Preprocess a text file and convert into csv

Hello,

I was working with Machine learning and would like to apply my regression algorithms on binary classification datasets.

So I came across this adult dataset, LIBSVM Data: Classification (Binary Class)

It is a binary dataset, features have values only 1 and 0.

and I wanted to download and use it,. However it is not in CSV format.
It is in this format

Code:

-1 5:1 7:1 14:1 19:1 39:1 40:1 51:1 63:1 67:1 73:1 74:1 76:1 78:1 83:1 
-1 3:1 6:1 17:1 22:1 36:1 41:1 53:1 64:1 67:1 73:1 74:1 76:1 80:1 83:1 
-1 5:1 6:1 17:1 21:1 35:1 40:1 53:1 63:1 71:1 73:1 74:1 76:1 80:1 83:1 
-1 2:1 6:1 18:1 19:1 39:1 40:1 52:1 61:1 71:1 72:1 74:1 76:1 80:1 95:1 
-1 3:1 6:1 18:1 29:1 39:1 40:1 51:1 61:1 67:1 72:1 74:1 76:1 80:1 83:1 
-1 4:1 6:1 16:1 26:1 35:1 45:1 49:1 64:1 71:1 72:1 74:1 76:1 78:1 101:1 
+1 5:1 7:1 17:1 22:1 36:1 40:1 51:1 63:1 67:1 73:1 74:1 76:1 81:1 83:1 
+1 2:1 6:1 14:1 29:1 39:1 42:1 52:1 64:1 67:1 72:1 75:1 76:1 82:1 83:1 
+1 4:1 6:1 16:1 19:1 39:1 40:1 51:1 63:1 67:1 73:1 75:1 76:1 80:1 83:1 
+1 3:1 6:1 18:1 20:1 37:1 40:1 51:1 63:1 71:1 73:1 74:1 76:1 82:1 83:1 
+1 2:1 11:1 15:1 19:1 39:1 40:1 52:1 63:1 68:1 73:1 74:1 76:1 80:1 90:1

so the first line is the class variable, and the remaining part the row
indicates which columns are 1..

How do I convert this to a csv where the columns which are 0 also come ?
like for this input row -1 5:1 7:1 14:1, i should get this output row

Code:

-1 0 0 0 0 1 0 1 0 0 0 0 0 0 1

Maybe a shell script with some awk programming would be needed.

Can someone help me out?

Last edited by Don Cragun; 08-21-2015 at 04:17 AM.. Reason: Add CODE and ICODE tags.

ajayram

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LEARN ABOUT DEBIAN

ifpps

ifpps(8)							netsniff-ng-toolkit							  ifpps(8)

NAME

       ifpps - fetch and format kernel network statistics

SYNOPSIS

       ifpps	 -d|--dev <netdev> [-t|--interval <sec>][-p|--promisc][-c|--term]
	    [-C|--csv][-H|--csv-tablehead][-l|--loop][-v|--version][-h|--help]

DESCRIPTION

       A tiny tool to provide top-like reliable networking statistics.	ifpps reads out the 'real' kernel statistics, so it does not give
       erroneous statistics on high I/O load.

OPTIONS

       ifpps --dev eth0
	   Fetch eth0 interface statistics.

       ifpps --dev eth0 --interval 60 --csv
	   Output eth0 interface statistics every minute in CSV format.

OPTIONS

       -h|--help
	   Print help text and lists all options.

       -v|--version
	   Print version.

       -d|--dev <netdev>
	   Device to fetch statistics for i.e., eth0.

       -p|--promisc
	   Put the device in promiscuous mode

       -t|--interval <time>
	   Refresh time in sec (default 1 sec)

       -c|--term
	   Output to terminal

       -C|--csv
	   Output in CSV format.  E.g. post-processing with Gnuplot et al.

       -H|--csv-tablehead
	   Print CSV table head.

       -l|--loop
	   Loop terminal output.

AUTHOR

       Written by Daniel Borkmann <daniel@netsniff-ng.org>

DOCUMENTATION

       Documentation by Emmanuel Roullit <emmanuel@netsniff-ng.org>

BUGS

       Please report bugs to <bugs@netsniff-ng.org>

								    2012-06-29								  ifpps(8)

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