panel.matrices

[zjwait0927]

Hi, I'm using this code with my own data,but now there exists a error:
data <-read_excel("XX.xlsx")
setup = panel.matrices(data)

but there exists a error
Error in panel.matrices(data) :
There is no variation in treatment status.

In my own data,there exists 0 or 1 in treated column,then how can i resolve this bug? Thank you!

[jonbaur]

I had the same issue and then found out that my data frame was actually a tibble. Use the command str() to find out if that's an issue for you as well. I just converted it to a data frame with as.data.frame().