R help - Jul 2018 - pROC

Hello,
I'm using the package pROC in RStudio to create my ROC-curves and I have
patients in my data - healthy or sick - in the column "Status" and the
value "SUVmax" to examine it.
I used the following code:
plot.roc(daten$Status,daten$SUVmax,percent=TRUE,ci=TRUE,print.auc=TRUE,main="ROC-Kurve
f?r den SUVmax")
The ROC-curve I got is ok, but on the x-axis I got a specificity from 150% to
-50%, but I want the scale from 100% to 0% (as usual).
xlim=c(100,0) doesn't work.
Can someone help me?
?
Best regards
M.Enzian

> On Jul 23, 2018, at 4:43 AM, Maria Enzian <M.Enzian at gmx.de> wrote:
> 
> 
> 
> Hello,
> I'm using the package pROC in RStudio to create my ROC-curves and I
have patients in my data - healthy or sick - in the column "Status"
and the value "SUVmax" to examine it.
> I used the following code:
>
plot.roc(daten$Status,daten$SUVmax,percent=TRUE,ci=TRUE,print.auc=TRUE,main="ROC-Kurve
f?r den SUVmax")
> The ROC-curve I got is ok, but on the x-axis I got a specificity from 150%
to -50%, but I want the scale from 100% to 0% (as usual).
> xlim=c(100,0) doesn't work.
> Can someone help me?
Perhaps if we had data that allowed investigation, we might be able to help, but
the example dataset on the help page shows `plot.roc` to be delivering expected
results.
>  
> Best regards
> M.Enzian
> 
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David Winsemius
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