Description Usage Arguments Details Value Author(s) References Examples
View source: R/fit_dose_response_model.R
Function FitDoseResponse
fits dose-response model by using
drm
function.
1 | FitDoseResponse(data, Emin = NA, Emax = NA)
|
data |
A data frame. It contains two columns:
|
Emin |
A numeric value or |
Emax |
A numeric or |
Pre-fitting process: 1. Change the 0 value in concentration into 10^-10 to avoide raising error when taking log. 2. If the variance of "response" values equal to 0, add 10^-10 to the last "response" value.
Model choice:
First use "L.4" model to fit the raw data. If error or waring occurs, use
"LL.4" model to fit log(raw data)
.
An object of class 'drc'. It contains information of fitted model.
Shuyu Zheng shuyu.zheng@helsinki.fi
Jing Tang jing.tang@helsinki.fi
Seber, G. A. F. and Wild, C. J (1989) hrefhttps://onlinelibrary.wiley.com/doi/book/10.1002/0471725315Nonlinear Regression, New York: Wiley \& Sons (p. 330).
1 2 3 4 5 | df <- data.frame(
response = c(0, 29, 59, 60, 75, 90),
dose = c(0.00, 9.7656, 39.0626, 156.25, 625, 2500)
)
model <- FitDoseResponse(df)
|
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