Hello @Mayelle26,
You can do this with the function map():
|> map(
fn: (r) => ({
r with
calculation: 0.2831 * r.rh_column ^ (0.2735 * float(v:r.temp_column)) + 0.0003018 * r.rh_column^ 2.0 + 0.01289 * r.rh_column- 4.0962
})
)
You can find a similar topic here: