pid (version 0.50)

grocery: Simulation of grocery store profits for a single product

Description

The hourly profit made when selling the product at price P and the product is displayed at height H [cm] on the shelf.

Usage

grocery(P=3.46, H=150)

Arguments

P

the selling price of the product. The default amount, if unspecified, is <U+20AC>3.46.

H

the display height of the product, as measured from the ground up. The default value, if unspecified, is 150cm.

Value

Returns the hourly profit made. Random noise is added for some realism.

Details

This function simulates the hourly profit in a grocery store of selling a particular product. Two factors can be adjusted by the user to determine the optimum:

• P: The selling price of the product (must be a positive value).

• H: The height that the product is displayed at (must be a positive value).

Can you determine the best combination of conditions, using a systematic method (i.e. not by trial and error)?

References

Please see Chapter 5 of the following book: Kevin Dunn, 2010 to 2019, Process Improvement using Data, https://learnche.org/pid

See Also

popcorn, manufacture

Examples

# NOT RUN {
# Selling at the default settings of price (<U+20AC>3.46)
# and shelf height (150cm):
grocery()

# Let's try selling for a low price, <U+20AC>2.75,
# and put the product 120 cm off the ground
grocery(P=2.75, H=120)

# What happens if the product is too high
# for the average person?
grocery(P=1.25, H=200)

# Can you find the optimum combination of settings to
# maximize the profit, but using only a few experiments?
# }