pp_array {PolicyPortfolios}

Convert a tidy dataset into a matrix of policy portfolios

Description

Take a tidy dataset containing one or several policy portfolios and convert it into a matrix or an array.

Usage

pp_array(D, return_matrix = FALSE)

Arguments

D

Data frame in a tidy format with the following columns: "Country", "Sector", "Year", "Instrument", "Target" and "covered". "covered" is a binary identificator of whether the portfolio space is covered by policy intervention (1) or not (0). The remaining columns identify the case. Notice that "Year" is a numeric value, while the remaining 4 case identifiers are factors.

return_matrix

Logical value indicating whether the output must be in the form of an array with Country, Sector and Year dimensions present (although equal to one), or a simplified matrix of Instruments and Targets. Defaults to FALSE.

Value

An array when return_single is FALSE (the default), or a two-dimensional matrix with Instruments and Targets as first and second dimensions, respectively.

Examples

data(P.education)
# Returns an array
A <- pp_array(P.education)
dim(A)

# Returns a matrix
M <- pp_array(subset(P.education, Country == "Syldavia" & Year == 2022),
  return_matrix = TRUE)
dim(M)