Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!
Get Started for Free

parse_atomic

Parse logicals, integers, and reals


Description

Use parse_*() if you have a character vector you want to parse. Use col_*() in conjunction with a read_*() function to parse the values as they're read in.

Usage

parse_logical(x, na = c("", "NA"), locale = default_locale(), trim_ws = TRUE)

parse_integer(x, na = c("", "NA"), locale = default_locale(), trim_ws = TRUE)

parse_double(x, na = c("", "NA"), locale = default_locale(), trim_ws = TRUE)

parse_character(x, na = c("", "NA"), locale = default_locale(), trim_ws = TRUE)

col_logical()

col_integer()

col_double()

col_character()

Arguments

x

Character vector of values to parse.

na

Character vector of strings to interpret as missing values. Set this option to character() to indicate no missing values.

locale

The locale controls defaults that vary from place to place. The default locale is US-centric (like R), but you can use locale() to create your own locale that controls things like the default time zone, encoding, decimal mark, big mark, and day/month names.

trim_ws

Should leading and trailing whitespace be trimmed from each field before parsing it?

See Also

Examples

parse_integer(c("1", "2", "3"))
parse_double(c("1", "2", "3.123"))
parse_number("$1,123,456.00")

# Use locale to override default decimal and grouping marks
es_MX <- locale("es", decimal_mark = ",")
parse_number("$1.123.456,00", locale = es_MX)

# Invalid values are replaced with missing values with a warning.
x <- c("1", "2", "3", "-")
parse_double(x)
# Or flag values as missing
parse_double(x, na = "-")

readr

Read Rectangular Text Data

v1.4.0
GPL (>= 2) | file LICENSE
Authors
Hadley Wickham [aut], Jim Hester [aut, cre], Romain Francois [ctb], R Core Team [ctb] (Date time code adapted from R), RStudio [cph, fnd], Jukka Jylänki [ctb, cph] (grisu3 implementation), Mikkel Jørgensen [ctb, cph] (grisu3 implementation)
Initial release

We don't support your browser anymore

Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.