EconGeo (version 2.0)

weighted_avg: Compute a weighted average of regions or industries from regions - industries matrices

Description

This function computes a weighted average of regions or industries from (incidence) regions - industries matrices.

Usage

weighted_avg(mat, vec, reg = TRUE)

Value

A numeric vector representing the weighted average of regions or industries, depending on the value of the `reg` argument. If `reg = TRUE`, the weighted average for regions is returned; if `reg = FALSE`, the weighted average for industries is returned.

Arguments

mat

An incidence matrix with regions in rows and industries in columns

vec

A vector that will be used to compute the weighted average for each industry/region

reg

Logical; Shall the weighted average for regions be returned? Default to TRUE (requires a vector of industry value) but can be set to FALSE (requires a vector of region value) if the weighted average for industries should be returned

Author

Pierre-Alexandre Balland

See Also

location_quotient

Examples

## generate a region - industry matrix
set.seed(31)
mat <- matrix(sample(0:100, 20, replace = TRUE), ncol = 4)
rownames(mat) <- c("R1", "R2", "R3", "R4", "R5")
colnames(mat) <- c("I1", "I2", "I3", "I4")

## a vector for regions will be used to computed the weighted average of industries
vec <- c(5, 10, 15, 25, 50)
## run the function
weighted_avg(mat, vec, reg = FALSE)

## a vector for industries will be used to computed the weighted average of regions
vec <- c(5, 10, 15, 25)
## run the function
weighted_avg(mat, vec, reg = TRUE)