I have a table with multiple data points for a species...
species temp min temp max
salt cedar 0 35
salt cedar -5 20
cheatgrass -24 15
cheatgrass 3 33
I need to combine, summarize, or merge the data so that I only have one column for each species with the overall min and max...
species temp min temp max
salt cedar -5 35
cheatgrass -24 33
I have no idea what function to use and I have only been using rstudio for a couple days.