safe_read_csv: Read csv Files with Given Column Classes

In dipterix/raveutils: Utility Toolbox for RAVE package

Description

Read csv Files with Given Column Classes

Usage

safe_read_csv(
  file,
  header = TRUE,
  sep = ",",
  colClasses = NA,
  skip = 0,
  quote = "\"",
  ...,
  stringsAsFactors = FALSE
)

Arguments

file, header, sep, colClasses, skip, quote, stringsAsFactors, ...

passed to read.csv

Details

Reading a csv file using builtin function read.csv might result in some unexpected behavior. safe_read_csv does some preprocessing on the format so that it take cares of the following cases.

1. If skip exceeds the maximum rows of the data, return a blank data frame instead of raising error.

2. If row names are included in the file, colClasses automatically skip that column and starts from the second column

3. If length of colClasses does not equal to the number of columns, instead of cycling the class types, we set those columns to be NA type and let read.csv decide the default types.

4. stringsAsFactors is by default FALSE to be consistent with R 4.0, if the function is called in R 3.x.

Value

A data frame

dipterix/raveutils documentation built on July 6, 2020, 12:24 a.m.