Displaying 2 results from an estimated 2 matches for "358724".
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58724
2010 Oct 25
2
dataframe, transform, strsplit
Hi,
I have a dataframe that has a column of vectors that I need to extract off
the character string before the first '.' character and put it into a
separate column. I thought I could use 'strsplit' for it within
'transform', but I can't seem to get the right invocation. Here is a sample
dataframe that has what I have, what I want, and what I get. Can someone
tell
2006 May 18
4
Nested design
Dear list members,
I'd like to perform a glm analysis with a hierarchically nested design. In
particular,
I have one fixed factor ("Land Use Classes") with three levels and a random
factor ("quadrat") nested within Land Use Classes with different levels per
classes (class artificial = 1 quadrat; class crops = 67 quadrats; and class
seminatural = 30 quadrats).
I have four