HDC
HDC

Reputation: 123

no ROC curve is plotting with geom_roc()

I am trying to use geom_roc() on my R, but nothing is plotting. There is no error messages, and the grid of the ROC curve is shows up, but I don't see any graph on the grid. Could you tell me how to fix this problem? Thank you,

library(ggplot2) 
library(plotROC)
df1 <- data.frame(read.csv(file="DogData.csv", header=TRUE, sep=","))
df1
df1$Status.Cancer <- as.factor(df1$Status.Cancer)
df1$Status.SIRS <- as.factor(df1$Status.SIRS)
df1$Status.Sepsis <- as.factor(df1$Status.Sepsis)
ggplot(df1, aes(d = Status.Cancer, m = AGE)) + geom_roc()

Upvotes: 1

Views: 1042

Answers (1)

HDC
HDC

Reputation: 123

I just fixed the problem. The problem was that Status.Cancer wasn't specified as numeric column. Change the column into numeric type and everything works just fine.

Upvotes: 1

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