A switch to write results to R and not to disk

[michelledayusfs]

Google asked for a switch to prevent R from writing to disk when not needed; they need this for planscape.

[codyevers]

Note to self: Need to rework how data is written to file. Currently, data is appended to output file after each loop, meaning that the only complete record is on disk and needs, and thus needs to be re-read back into R to output.

[codyevers]

forsys::run has new parameter called write_outputs. Outputs are written to file if TRUE. forsys::run also a second parameter called return_outputs. Outputs are returned to the current environment in the form of a three item list if TRUE. Those list elements are: [[1]] stand output, [[2]] project output, and [[3]] subset output.

• [ ] @michelledayusfs to review and resolve

[JanLauGe]

That you @codyevers, this sounds great!

[michelledayusfs]

This is still creating a blank output directory even when write_outputs = FALSE

[codyevers]

I fixed this. A directory is created is only created if write_outputs == TRUE