data_unit: 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",
space = 1
)
Value
The function returns the user's data frame with two additional columns: grammage and unit (both are character type). 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').
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
multiplication
A sign of the multiplication used in product descriptions
space
A maximum space between the product grammage and its unit