search for: clee

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2010 Oct 11
3
help with simple but massive data transformation
I have data that looks like this: start end value 1 4 2 5 8 1 9 10 0 I want to transform the data so that it becomes: startend value 1 2 2 2 3 2 4 2 5 1 6 1 7 1 8 1 9 0 10 0 ---- I've
2010 Mar 10
2
modify the levels of a variable
If anyone can help with this, I would greatly appreciate it. When I subset a dataframe, and then create a table of on of the column variables, the levels of that variable are retained from the parent dataframe. Anyone know how to for example, say I have data like so: data: X Y a 2 b 2 a 3 b 3 a 5 if I do.... data2=subset(data,X=="a") I get the new data