I am using the memisc package with mtable to format two multiple regression outputs into one table. I can not seem to find a way to call the Adjusted squared. It seems the package only prints squared. Is this accurate? If not, how can I get the output to generate Adjusted R-squared?

I have tried substituting "R-squared" with "Adj. R-squared" "Adjusted R-squared" and so on and so forth and it seems only to have a call for R-squared.

I believe adjusted R^2 is not universally defined for regression other than linear, so perhaps that is why memisc does not calculate it. In logistic regression, one measure of adjusted R^2 is McFadden R^2, which you can get for example as follows:

df <- data.frame(UCBAdmissions)
mylogit <- glm(Admit ~ ., data = df, family = "binomial")
library(pscl)
r <- pscl::pR2(mylogit) # look for 'McFadden'
r
r[4]