Hello,
I'm glad that it worked.
Two things:
1. Please, click reply all to keep this threaded.
2. The question should have belonged to r-h...@r-project.org, not to
r-devel@r-project.org.
Rui Barradas
Às 07:10 de 17/03/20, Moshe Olshansky escreveu:
It works, thank you!
On Tuesday, 17 March 2
Hello,
The problem seems to be that A is a matrix. The following solves the error.
# create A and b as in your code then run
A <- as.data.frame(A)
df1 <- cbind(A, b)
reg <- lm(b ~ ., df1)
# etc
Hope this helps,
Rui Barradas
Às 04:36 de 17/03/20, Moshe Olshansky via R-devel escreveu:
Hello,
Hello,
Below is my code:
> A <- matrix(rnorm(10*3),ncol=3)
> b <- runif(10)
> reg <- lm(b ~ A)
> A1 <- matrix(rnorm(5*3),ncol=3)
> A1 <- as.data.frame(A1)
> b1 <- predict(reg,A1)
Warning message:
'newdata' had 5 rows but variables found have 10 rows
And instead of being an array of length 5, b1
