Size of dataframe saved as CSV — csv

Estimate the size of a dataframe saved as a CSV file.

Usage

csv_size(x, frac = 0.05, format = TRUE)

Arguments

x: A data.frame that would be written to disk as a CSV.
frac: A numeric value between 0 and 1. The fractional size of x used for estimation of complete CSV size on disk.
format: TRUE or FALSE. If TRUE, automatically choose nice unit (megabytes, gigabytes, etc) for file size. If FALSE, file size in bytes.

Value

If format=FALSE, a numeric vector. If format=TRUE, a character vector.

References

https://stackoverflow.com/a/16847651

Examples


#----------------------------------------------------------------------------
# csv_size() examples
#----------------------------------------------------------------------------
library(bkmisc)

# a data.frame with 50 columns and 100,000 rows of all numeric values
tmp <- data.frame(replicate(50, rnorm(10^5)))
csv_size(x = tmp, frac = 0.1, format = TRUE)
#> [1] "87.3 Mb"
csv_size(x = tmp, frac = 0.1, format = FALSE)
#> [1] 91501300