Where a value sits relative to a replicate band

The IBM is stochastic, so the question is never "are the two numbers equal" but "is the deterministic one inside the spread the stochastic one produces". Returns 0 when inside, and otherwise the signed distance outside expressed as a fraction of the edge it crossed – so -0.0024 reads as "0.24% below the lower edge", which is how the results are quoted.

Usage

band_position(value, lower, upper)

inside_band(value, lower, upper)

Arguments

value

numeric, the candidate value.

lower, upper

numeric, the band edges (e.g. 10th and 90th percentiles).