eqr | R Documentation |
The ecological quality ratio is the ratio beween a parameter value and its reference value:
EQR = (x-bad)/(ref-bad)
Depending on bad
and ref
, the EQR usually
(but not necessarily!) varies between 0 (bad ecological quality) and 1 (
ecological quality equals the reference status).
eqr(x, bad, ref)
x |
numeric vector containing benthic indices |
bad |
the value for a bad status |
ref |
the value for a reference status |
numeric vector with EQR-values: low values indicate bad ecological quality and high values indicate good ecological quality.
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