disk.frame (version 0.8.3)

nrow: Number of rows or columns

Description

Number of rows or columns

Usage

nrow(df, ...)
# S3 method for disk.frame
nrow(df, ...)
ncol(df)
# S3 method for disk.frame
ncol(df)

Arguments

df

a disk.frame

...

passed to base::nrow

Examples

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)