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2008 Nov 16
1
Changing values (factors) does not change levels of that value?!
...== "-" ] <- 0
-> OK
* checked the contents on "-" vs. "0" and found all "-" substituted by
0
-> OK
* when then looking at str(weblog),
the "-" will stay in the levels, mentioned for the variable weblog$V8
-> BAD!
Is this snormal behaviour?
Do I have to throw out the unwanted level by myself?
Ciao,
Oliver