Description Usage Arguments Examples
Computes cumulative time or cost for units m through n in a production block using Wright's cumulative average model. Assumes the block begins at unit m and ends at unit n.
1 |
t |
time (or cost) required for the mth unit of production |
n |
last unit of the production block of concern |
r |
learning curve rate |
m |
first unit of the production block of concern (default: m = 1) |
na.rm |
Should |
1 2 3 4 5 6 7 8 9 | # Production of the first 200 units of a product is nearing its
# end. Your customer said he is willing to buy an additional 50
# units. There will be no break in production or in learning. The
# first unit required 75 hours and the first 200 units had an 85%
# learning curve. How many hours will the second block of 50 units
# require?
ca_block(t = 75, m = 201, n = 250, r = .85)
## [1] 806.772
|
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