Area weighted seasonal cummulative precipitation extraction based on crop yeild area file

Right now this question is pretty broad – I suggest you try to break it down into smaller pieces to try and make it easier for the community to help you with the parts that you're stuck on.

In general, it's much easier to discuss code by looking at the code itself. Could you turn what you have done thus far into a self-contained reprex (short for minimal reproducible example)? It will help us help you if we can be sure we're all working with/looking at the same stuff.

Currently, the best way to install reprex is:

# install.packages("devtools")

If you've never heard of a reprex before, you might want to start by reading the help page. The reprex dos and don'ts are also useful.

If you run into problems with access to your clipboard, you can specify an outfile for the reprex, and then copy and paste the contents into the forum.

reprex::reprex(input = "fruits_stringdist.R", outfile = "")

For pointers specific to the community site, check out the reprex FAQ, linked to below.