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DoseResponse
Fitting dose-response models in R
Please refer to this post: https://stackoverflow.com/questions/50119927/mselect-function-of-drc-package-does-not-work-inside-a-function The solution is provided there: ``` tempObj
Hi, Thanks a lot for this amazing package and documentation. I am trying to account for departure from normality and variance homogeneity when fitting a Weibull Type II model on...
Suggest that a `deviance` method for "drc" class be added to the drc package. Might also review what methods exist for "nls" and "lm" classes and add any which are...
``` > library(drc) > spinach.model1 predict(spinach.model1, data.frame(dose=2, CURVE=c("1", "2", "3")), + interval = "confidence") Prediction Lower Upper [1,] 0.9048476 0.8552178 0.9544775 [2,] 0.4208307 0.3626741 0.4789873 [3,] 0.5581673 0.4971838 0.6191509 Warning...
I found that llogistic2 model has no fixed information ``` x = LL2.4(fixed = c(NA, 0, 1, NA)) x$fixed NULL fit
Is this potentially a bug or is it intended behaviour? I noticed that the `spinach.model1` example in `?predict.drc` returns a matrix with the credible intervals ``` > library(drc) > spinach_model1_ll4...
Calculation of robust standard errors using the `sandwich` package appears to fail under R 4.0.x but not under earlier versions (3.6.0). I see this issue has already be raised and...
I've been using `W1.3()` and `W2.3()` to fit a 3-parameter Weibull model to data. `drc` gives 2 parameterizations of the 3-parameter weibull (https://cran.r-project.org/web/packages/drc/drc.pdf): ``` f(x) = 0 + (d −...
Hello, I am using "drm(FailRate ~ Mpa, fct = W2.2(), data = my_data)" to fit my data, and interested in understanding the method W2.2() used to obtain the starting values....
Dear `drc` developers, I like your package very much and use it all the time in my work. Also I enjoy using `tidyverse` metapackage with its pipelines. But there's an...
