Block Summary Function

Provides summary information for the block containing units m through n (where n > m). Based on Crawford's unit learning curve model.

unit_block_summary(t, m, n, r, na.rm = FALSE)

Arguments

t

time for the mth unit

m

lower bound unit of production block

n

upper bound unit of production block

r

learning curve rate

na.rm

Should NA values be removed?

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, what is the block summary?

unit_block_summary(t = 125, m = 201, n = 500, r = .75)
#> $`block units`
#> [1] 300
#> 
#> $`block hours`
#> [1] 30350.48
#> 
#> $`midpoint unit`
#> [1] 334.6103
#> 
#> $`midpoint hours`
#> [1] 101.1683
#> 
## $`block units`
## [1] 300

## $`block hours`
## [1] 30350.48

## $`midpoint unit`
## [1] 334.6103

## $`midpoint hours`
## [1] 101.1683