Add area weighted average function. See merge request !7
update zxc with master (delete tmp2.md)
small change to run.r See merge request !6
Form adjustment for mon_mean.r and run.r See merge request !5
delete tmp2.md See merge request !4
small change to read_netcdf.r See merge request !3
merge by command
fix
test See merge request !2
test
Add 3 files about monthly mean See merge request !1