Print less than or equal sign in R?

Question

I tried using \\u2264 for the less than or equal sign:

> names(table_A1) <- c(\"x\", \"P(X=x)\", \"P(X\\u2264x)\")
> print(table_A1)
         


        

Answer 1

colnames(mtcars)[1] <- as.character(expression("P(X\u2264x)"))
head(mtcars[,1:3])
##                   P(X≤x) cyl disp
## Mazda RX4           21.0   6  160
## Mazda RX4 Wag       21.0   6  160
## Datsun 710          22.8   4  108
## Hornet 4 Drive      21.4   6  258
## Hornet Sportabout   18.7   8  360
## Valiant             18.1   6  225