legg_til_tidsvariabler: Add time-variables

In Rapporteket/NORIC: Provide R Resources for NORIC at Rapporteket

Add time-variables

Description

The function legg_til_tidsvariabler() creates six time-variables, aar, maaned_nr, maaned, kvartal, uke, aar_uke, based on a given date-column (var) of input data.frame df. Then these new variables are added to df before the entire data.frame is returned.

Usage

legg_til_tidsvariabler(df, var = ProsedyreDato)

Arguments

df	data.frame from any NORIC-table. Must contain a variable in date-format.
var	name of variable in date-format that should be used to calculate the new variables.

Value

The input data.frame df is returned as it is, with six new columns added,one for each time-variable.

Examples

df <- data.frame(
   datoVariabel = c("2021-02-28",
                    "2013-09-15",
                    "2020-05-31",
                    "2015-12-12",
                    "2016-12-31",
                    "2016-01-01" ))
legg_til_tidsvariabler(df = df,
                       var = datoVariabel)

## Not run: 
# FOR NORIC's ap, ak and ct-tables:
legg_til_tidsvariabler(ap, var = ProsedyreDato)
legg_til_tidsvariabler(ak, var = ProsedyreDato)
legg_til_tidsvariabler(ct, var = UndersokDato)

## End(Not run)

Rapporteket/NORIC documentation built on Feb. 15, 2024, 5:25 p.m.