Calculate standard deviation

Hello,

I'm beginner on R studio, and I'm struggling with something that must be quite simple.

I have a .csv file that I imported into R studio and out of this file, I need to calculate the standard deviation of each line. I have been trying to use the as.matrix command but there something I'm missing apparently...

Could you help me out ?
Thanks

If your data frame consists only of numeric values then you can use to apply function to do the job.

apply(df, 1, sd)

This will call the sd function on each row of a data frame.