pqcor {PriceIndices} | R Documentation |
The function returns correlation between price and quantity of sold products with given IDs.
pqcor(data, period, set = c(), figure = FALSE)
data |
The user's data frame. It must contain columns: |
period |
The time period (as character) limited to the year and month, e.g. "2019-03". |
set |
The set of unique product IDs to be used for determining correlation between price and quantity of sold products (see also |
figure |
A logical parameter indicating whether the function returns a figure (TRUE) or a data frame (FALSE) with correlations between price and quantity of sold products. |
The function returns Pearson's correlation coefficient between price and quantity of products with given IDs and sold in period
.
pqcor(milk, period="2019-03")
pqcor(milk, period="2019-03",figure=TRUE)