rocplot {Zelig} | R Documentation |
The rocplot
command generates a receiver operator
characteristic plot to compare the in-sample (default) or
out-of-sample fit for two logit or probit regressions.
rocplot(y1, y2, fitted1, fitted2, cutoff = seq(from=0, to=1, length=100), lty1 = "solid", lty2 = "dashed", lwd1 = par("lwd"), lwd2 = par("lwd"), col1 = par("col"), col2 = par("col"), main, xlab, ylab, ...)
y1 |
Response variable for the first model. |
y2 |
Response variable for the second model. |
fitted1 |
Fitted values for the first model. These values may represent either the in-sample or out-of-sample fitted values. |
fitted2 |
Fitted values for the second model. |
cutoff |
A vector of cut-off values between 0 and 1, at which to evaluate the proportion of 0s and 1s correctly predicted by the first and second model. By default, this is 100 increments between 0 and 1, inclusive. |
lty1, lty2 |
The line type for the first model ({tt
lty1}) and the second model (lty2 ), defaulting to solid and
dashed, respectively. |
lwd1, lwd2 |
The width of the line for the first
model (lwd1 ) and the second model (lwd2 ), defaulting to
1 for both. |
col1, col2 |
The colors of the line for the first
model (col1 ) and the second model (col2 ), defaulting to
black for both. |
main |
a title for the plot. Defaults to "Roc Curve". |
xlab |
a label for the x-axis. Defaults to "Proportion of 1's Correctly Predicted". |
ylab |
a label for the y-axis. Defaults to Proportion of 0's Correctly Predicted". |
... |
Additional parameters passed to plot, including
xlab , ylab , and main . |
Kosuke Imai <kimai@princeton.edu>; Gary King <king@harvard.edu>; Olivia Lau <olau@fas.harvard.edu>
The full Zelig manual (available at
http://gking.harvard.edu/zelig), plot
, lines
.