Hi Folks,
Please,
when I ask the option reg.line at the scatterplot in package car, the OLS
models includes a constant?
If not how can I do it sing the following code:
scatterplot(lfirms ~ lscale,
data=dataset,
reg.line=lm, smooth=FALSE, labels=FALSE,
span=0.5,
xlab="Relative Plant Fixed Cost",
ylab="Relative Number of Firms",
pch=c(18),
boxplots=FALSE,
main = "Relative Number of Firms x Relative Plant Fixed Cost",
pty='s',lty = "solid", las = 1, adj=0.5)
grid(nx = 10, ny = 10, col = "black", lty = "dotted",lwd = par("lwd"),
equilogs = TRUE)
A variable, ctt, of ones is in the dataset.
Thanks in advance,
Rick
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