File:Log DiagnosticOddsRatio.png
Original file (672 × 671 pixels, file size: 6 KB, MIME type: image/png)
Summary
[edit]Created in R by contributor.
Commands:
> sensitivity <- seq(0.01, 0.99, by=0.01)
> specificity <- seq(0.01, 0.99, by=0.01)
> dor <- matrix(nrow=length(sensitivity), ncol=length(specificity))
> for (i in 1:length(sensitivity)) {
+ for (j in 1:length(specificity)) {
+ dor[i,j] <- (sensitivity[i]*specificity[j])/((1-sensitivity[i])*(1-specificity[j]))
+ }
+ }
> ldor <- log(dor)
> filled.contour(sensitivity, specificity, ldor,
+ xlim=c(0,1), ylim=c(0,1),
+ col=hsv(h=seq(0.75,0,length=20),s=1,v=1),
+ plot.title=title(xlab="Sensitivity",ylab="Specificity"),
+ key.title=title(main="log(DOR)")
+ )
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:20, 1 November 2011 | | 672 × 671 (6 KB) | Ts4079 (talk | contribs) | Created in R by contributor. Commands: sensitivity <- seq(0.01, 0.99, by=0.01) specificity <- seq(0.01, 0.99, by=0.01) dor <- matrix(nrow=length(sensitivity), ncol=length(specificity)) for (i in 1:length(sensitivity)) { for (j in 1:length(specificity)) |
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