assert_colnames: Assert that a data.frame contains specified column names

In assertable: Verbose Assertions for Tabular Data (Data.frames and Data.tables)

Description

Given a data.frame or data.table object, assert that all columns in the colnames argument exist as columns.

Usage

assert_colnames(data, colnames, only_colnames = TRUE, quiet = FALSE)

Arguments

data	A data.frame or data.table
colnames	Character vector with column names corresponding to columns in data
only_colnames	Assert that the only columns in the data object should be those in colnames. Default = T.
quiet	Do you want to suppress the printed message when a test is passed? Default = F.

Value

Throws error if test is violated.

Examples

assert_colnames(CO2, c("Plant","Type","Treatment","conc","uptake"))
assert_colnames(CO2, c("Plant","Type"), only_colnames=FALSE)

Example output

[1] "All column names present"
[1] "All column names present"

assertable documentation built on Jan. 27, 2021, 9:07 a.m.