Block Summary Plot

Plots the Crawford unit learning curve for the production block containing units m through n (inclusive) while highlighting midpoint values.

plot_block_summary(t, m, n, r)

Arguments

t

time (or cost) required for the mth unit of production

m

mth unit for which you have time (or cost) information (default is m = 1)

n

nth (last) unit of production in the production block of concern (n > m)

r

learning curve rate

Examples

# A production block runs from unit 201 to unit 500 inclusive.
# The 201st unit had a required time of 125 hours with a 75% 
# learning curve. Plot the block summary?

plot_block_summary(t = 125, m = 201, n = 500, r = .75)