I am sure a common need is to plot a scatterplot with some fitted
line(s) and maybe save to a file.
I have this:
plot.glm <- function (x, y, file = NULL, xlab = deparse(substitute(x)),
ylab = deparse(substitute(y)), main = NULL) {
m <- glm(y ~ x)
if (!is.null(file))
pdf(file = file)
plot(x, y, xlab = xlab, ylab = ylab, main = main)
lines(x, y = m$fitted.values, col = "green")
if (!is.null(file))
dev.off()
print(m)
}
is there a better/easier/more general way?
--
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