nmea: Create NMEA sentences

In paleolimbot/nmea: Parse 'NMEA' Sentences

Description

Most NMEA sentences are valid ASCII text. Some, however, contain embedded nul characters as part of their structure and can't be represented by a character(). For most NMEA text you probably don't need this class (just read the file as lines and pass to the other functions in this package).

Usage

nmea(x = list())

as_nmea(x, ...)

## S3 method for class 'nmea'
as_nmea(x, ...)

## S3 method for class 'list'
as_nmea(x, ...)

## S3 method for class 'data.frame'
as_nmea(x, ..., nmea_col = "sentence")

## S3 method for class 'raw'
as_nmea(x, ...)

## S3 method for class 'character'
as_nmea(x, ...)

Arguments

x	An object to be converted to one or more NMEA sentences
...	Unused
nmea_col	A column name containing the NMEA sentence in a data.frame. Defaults to "sentence" as this is the column returned by read_nmea().

Value

A new_nmea().

Examples

nmea()
as_nmea(NA_character_)
as_nmea(nmea_test_basic)
as_nmea(list(charToRaw(nmea_test_basic[1])))
as_nmea(charToRaw(nmea_test_basic[1]))

# can include 0x00!
nmea(list(as.raw(0x00)))

paleolimbot/nmea documentation built on April 12, 2021, 2:10 a.m.