Displaying 1 result from an estimated 1 matches for "2.479339".
2013 Apr 20
7
Reshape or Plyr?
H all,
I have relative abundance data from >100 sites. This is from acoustic
monitoring and usually the data is for 2-3 nights but in some cases my
be longer like months or years for each location..
The data output from my management data base is proved by species by
night for each location so data frame would look like this below. What I
need to do is sum the Survey_time by Spec_Code for