data_unit {PriceIndices}

Providing information about the grammage and unit of products

Description

The function returns the grammage and unit of products as two additional columns.

Usage

data_unit(data = data.frame(), units = c("g|ml|kg|l"), multiplication = "x")

Arguments

data

The user's data frame. The data frame must contain the description column (as character).

units

Units of products which are to be detected (e.g. "ml|g|kg")

multiplication

A sign of the multiplication used in product descriptions (e.g. "x")

Value

The function returns the user's data frame with two additional columns: grammage and unit. The values of these columns are extracted from product descriptions on the basis of provided units. Please note, that the function takes into consideration a sign of the multiplication, e.g. if the product description contains: '2x50 g', we obtain: grammage: 100 and unit: g for that product (for multiplication set to 'x').

Examples

data_unit(dataU, units=c("g|ml|kg|l"), multiplication="x")