
Last chance! 50% off unlimited learning
Sale ends in
Number of rows or columns
nrow(df, ...)# S3 method for disk.frame
nrow(df, ...)
ncol(df)
# S3 method for disk.frame
ncol(df)
a disk.frame
passed to base::nrow
cars.df = as.disk.frame(cars)
# return total number of column and rows
ncol(cars.df)
nrow(cars.df)
# clean up cars.df
delete(cars.df)
Run the code above in your browser using DataLab