REAT (version 1.3.2)

data.index:

Description

Standardizing a variable as an index

Usage

data.index(dataset, col.index, col.ref, value.ref)

Arguments

dataset

regarded data.frame

col.index

column to be converted to index values

col.ref

column with the reference values of the index (e.g. years or months)

value.ref

value from the reference column which is the reference value (=100)

Value

a numeric vector consisting of the indexed values of col_index

Examples

# Creating test data
year <- 2010:2015
values <- c(20,24,21,28,27,29)
timeseries <- data.frame(year, values)
data.index(timeseries, "values", "year", "2012")
# returns index values
valuesindex <- data.index(timeseries, "values", "year", "2012")
timeseries2 <- data.frame(timeseries, valuesindex)
# add index values to data