Displaying 1 result from an estimated 1 matches for "tree_liv".
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tree_live
2012 Apr 13
1
Coding columns for survival analysis
...was alive or dead. I want to recode the columns such that the cell
reads "found" when a live tree is first observed, "alive" for when a
tree is found alive and is not just found, and "mort" when it was
previously alive but is now dead.
Given the following:
> tree_live = data.frame(tree =
c("tree1","tree2","tree3","tree4","tree5"), live1 = c(0,0,0,1,1), live2
= c(0,0,1,1,0), live3 = c(0,1,1,0,0), live4 = c(1,1,0,0,0), live5 = c(1,
0, 0, 0, 0))
tree live1 live2 live3 live4 live5
1 tree1 0 0...