I'm trying to automate a process in R, but I still can't get to what I need. I have two data-frames indexed from the same code in the lines, which would be the samples, one data-frame identifies the species that occur in the samples and the other identifies the environmental variables of these samples. I need the minimum and maximum of environmental variables to be returned according to two conditions, the maximum or minimum returned has to search for samples and group by species. All available packages and scripts that I've checked don't do what I need, does anyone have any ideas? Thanks. Thiago
return min and max with conditions
2 messages · Thiago A. Pires, Bede-Fazekas Ákos
Dear Thiago, a reproducible example and a desired output would help us to understand and solve the problem. The description was not clear, at least, for me. But it seems to be a simple apply/lapply/aggregate/by task that can be solved without installing packages. Best wishes, ?kos Bede-Fazekas Centre for Ecological Research, Hungary 2022.02.16. 16:38 keltez?ssel, Thiago A. Pires ?rta:
I'm trying to automate a process in R, but I still can't get to what I need. I have two data-frames indexed from the same code in the lines, which would be the samples, one data-frame identifies the species that occur in the samples and the other identifies the environmental variables of these samples. I need the minimum and maximum of environmental variables to be returned according to two conditions, the maximum or minimum returned has to search for samples and group by species. All available packages and scripts that I've checked don't do what I need, does anyone have any ideas? Thanks. Thiago [[alternative HTML version deleted]]
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