Calibration

The calibration module provides Linear, a two-point linear calibration for translating a raw sensor reading into a calibrated value (e.g. converting a raw pH probe voltage into an actual pH value).

Usage

A Linear is created empty and calibrated with two Point { x, y } readings, where x is the raw input and y is the known reference value:

let mut linear = Linear::new();
linear.calibrate(
    Point { x: raw_low, y: reference_low },
    Point { x: raw_high, y: reference_high },
)?;

let calibrated = linear.apply(raw_reading)?;

calibrate fits the line y = m*x + t through the two points. apply then maps any raw x through that line.