Answers for "how to find number of na values in each column in r"

how to count the number of NA in r

sum(is.na(df$col))

Posted by: Guest on July-31-2020

how to get number of columns in matrix R

#Suppose x is a matrix
x <- matrix()

#Number of rows
nrow(x)
#Number of columns
ncol(x)

Posted by: Guest on November-11-2020

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