val_cname: Validate the column name of a data frame

In psyosphere: Analyse GPS Data

Description

Validate the column name of a data frame

Usage

val_cname(tracks, cname, type = "", size = 0, force = 2, def = TRUE)

Arguments

tracks	psyo. Data frame with tracks.
cname	character. Column name of column in tracks that is to be validated.
type	character. Type of column in tracks determined by mode.
size	size. Observation count of column in tracks determined by length.
force	numeric. An error with force_id will be reported as stop when 2, warning when 1 or nothing when 0.
def	logical. Ignore this check if cname = "".

Value

character

Author(s)

Benjamin Ziepert. Please send feedback to: [e-mail].

See Also

val_cname,val_psyo, val_var

Examples

## Not run: \dontrun{
data(psyo)

# Test t_id
t1 <- psyo
t_id <- "id"
e <- val_cname(t1, t_id, size = 15, type = "numeric"); if (e != "") {stop(e)}

# Be aware that id column is saved as "factor" and therefore mode() returns
# numeric.

t2 <- psyo
t_id <- 1
e <- val_cname(t2, t_id); if (e != "") {stop(e)}

t3 <- psyo
t_id <- "id"
e <- val_cname(t3, t_id, size = 15, type = "character"); if (e != "") {stop(e)}

t4 <- psyo
t_id <- "id"
e <- val_cname(t4, t_id, size = 20); if (e != "") {stop(e)}

t5 <- psyo
t_id <- "id"
e <- val_cname(t5, t_id, size = "20"); if (e != "") {stop(e)}
}
## End(Not run)

psyosphere documentation built on July 2, 2020, 12:08 a.m.