calc.ed | R Documentation |
Calculates the concentration that induces a particular level of the response.
calc.ed(eadrm.obj, response, ci.obj = NULL)
eadrm.obj |
Fitted eadrm model object. |
response |
The desired response level. |
ci.obj |
Output from eadrm.ci that is used to compute confidence intervals. Defaults to NULL, in which case no confidence intervals are computed. |
If no confidence intervals are requested, it returns the concentration corresponding to the specified response. Otherwise returns a list of three values ed.med, ed.l95, and ed.u95, which correspond to the median concentration and the corresponding lower/upper 95% confidence bounds.
eadrm
, eadrm.ci
ea.fit <- eadrm(CarboA$y, CarboA$x) calc.ec(ea.fit)
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