[R] Add columns of dataset
Lisa
lisajca at gmail.com
Fri Dec 3 21:40:35 CET 2010
Dear all,
I have a dataset that looks like
id var1 var2 var4 var7 var8
1 0.0 0.1 0.3 0.9 0.0
2 0.4 0.6 0.0 0.0 0.2
3 0.0 0.0 0.0 0.8 0.7
Some columns are missed, for example, here the fourth (var3), sixth(var5)
and seventh (var6) columns. I want to first determine which columns are
missed in a huge dataset and then add the missed columns with the values of
zeros that looks like
id var1 var2 var3 var4 var5 var6 var7 var8
1 0.0 0.1 0.0 0.3 0.0 0.0 0.9 0.0
2 0.4 0.6 0.0 0.0 0.0 0.0 0.0 0.2
3 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.7
Can anybody please help how to get this done? Thanks a lot in advance
Lisa
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