| dummy {linelistBayes} | R Documentation |
Generate Dummy Variables Matrix for Weeks and Weekends
Description
This function creates a matrix of dummy variables based on reported weeks and weekend indicators. Each column in the resulting matrix corresponds to a specific week, except for the last column, which indicates whether the date falls on a weekend. This matrix is typically used in regression models where week-specific effects are to be adjusted along with the effect of weekends.
Usage
dummy(week, weekend)
Arguments
week |
An integer vector representing the week number of each observation. Each element denotes the week during which a specific event occurred. |
weekend |
A binary integer vector (elements being 0 or 1) indicating whether each observation corresponds to a weekend. Here, '1' indicates a weekend and '0' a weekday. |
Value
A numeric matrix where each row corresponds to an observation and each column to a week, with an additional final column for weekend indicators. The elements of the matrix are dummy variables (0 or 1); each row contains exactly one '1' in one of the first several columns corresponding to the week of the observation, and a '1' or '0' in the last column indicating weekend status.
Examples
week <- c(1, 1, 1, 2, 2, 3, 3, 3, 3, 3)
weekend <- c(0, 1, 0, 0, 1, 0, 0, 1, 1, 0)
dummy_vars <- dummy(week, weekend)