Hello R experts,
I need a help to create a subset file. I know with subset comand, its very
easy to select many different columns, or threshold. But here I have a bit
problem as in my data file is big. And I don't want to identify the column
numbers
or names manually. I am trying to find any
Hello,
You could try something like the following.
The example below assumes your data.frame is named 'dat'
cnums - grep(Peak\\.Area, colnames(dat))
subdat - dat[cnums]
See ?regexp for the regular expressions used by ?grep.
Hope this helps,
Rui Barradas
Em 16-06-2013 08:20, Suparna Mitra
Supposed your data.frame is called x, try
x[ which( substr( colnames( x ), 1, 4 ) == Peak ) ]
On Sunday 16 June 2013 15:20:37 Suparna Mitra wrote:
Hello R experts,
I need a help to create a subset file. I know with subset comand, its very
easy to select many different columns, or threshold.
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