R programming Removing NA values

Question

I am new to R programming and I was wondering how to remove null or N/A values.

Answer 1

You can make use of the "na.rm" function to remive N/A values.

For example, 

sum(df[,1], na.rm = TRUE) 

where df is your data frame.

Answer 2

Hi,

Use na.rm = TRUE

or

Fetch values which has no NA values using position.

var[which(!is.na(var))]