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Попытка использовать R
«ы tryCatch
на установку лог-логистической кривой в данных доза-ответ:Использование R в tryCatch
df <- data.frame(dose=c(10,0.62,2.5,0.16,0.039,0.0024,0.0098,0.00061,10,0.62,2.5,0.16,0.039,0.0024,0.0098,0.00061,10,0.62,2.5,0.16,0.039,0.0024,0.0098,0.00061),
viability=c(22,79,100,61,100,87,75,51,6.5,37,100,100,90,100,42,41,5,100,13,100,91,100,95,100),
stringsAsFactors = F)
с drc
» ы drm
функции, используя этот код:
library(drc)
fit <- tryCatch(
{
drm(viability~dose,data=df,fct=LL.4(names=c("slope","low","high","ED50")))
},
error=function(cond){
return(NA)
},
warning=function(cond){
return(NA)
},
finally={
}
)
Я получаю:
> fit
[1] NA
Однако, когда я пытаюсь без tryCatch
нет никаких проблем:
> drm(viability~dose,data=df,fct=LL.4(names=c("slope","low","high","ED50")))
A 'drc' model.
Call:
drm(formula = viability ~ dose, data = df, fct = LL.4(names = c("slope", "low", "high", "ED50")))
Coefficients:
slope:(Intercept) low:(Intercept) high:(Intercept) ED50:(Intercept)
1.498 -163.577 81.031 18.481
Am Я не использую tryCatch
правильно?