Displaying 1 result from an estimated 1 matches for "tf4733049".
2007 Nov 01
2
problem with log axis
Hello,
if I do:
x <- c(0.5,1,3,6,10,20,40)
y <- 10-log(x)+rnorm(7,0,0.05)
r1 <- lm(y ~ log(x))
plot(log(x),y)
abline(r1)
#
I get a nice plot with the regression line almost over the points.
but:
plot(x,y,log="x")
abline(r1)
gives me exactly the same plot for the points but the regression line
is completely off !
I would like the plot with the real values of X on