f.fit {RFlocalfdr} | R Documentation |
fit a spline to the histogram of imp
Description
fit a spline to the histogram of imp
Usage
f.fit(imp, df = 10, debug.flag = 0, temp.dir = NULL)
Arguments
imp |
the variable importances |
df |
the degrees of freedom for the spline fit |
debug.flag |
either 0 (no debugging information), 1 or 2 |
temp.dir |
if debug flag is >0 then information is written to temp.dir |
Value
a list with the following components
"x" – midpoints of the histogram
"zh" – a histogram object as returned by "hist"
"f.spline" – the spline fit. The fit is given by a glm mode glm(zh$counts ~ splines::ns(x), poisson)
"counts" the counts from the histogram
Examples
data(imp20000)
imp <- log(imp20000$importances)
res <- f.fit(imp)
plot(res$zh, xlab="importances", main="histogram of importances")
points(res$midpoints,res$counts, col="grey90")
lines(res$zh$breaks[-1],res$f.spline,col="blue", lwd=3)
legend("topleft",c("spline fit"), col="blue", lwd=3)
[Package RFlocalfdr version 0.8.5 Index]