Displaying 1 result from an estimated 1 matches for "tp3071722p3072513".
2010 Dec 03
2
Add columns of dataset
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