DescTools (version 0.99.60)

SumCI: Add Up Partial Confidence Intervals to a Total CI

Description

Starting with a response variable that obtains different confidence intervals (CI) when calculated with different explanatory variables, all the values of the response variable should be added up. This function returns the CI for the sum.

Usage

SumCI(x)

Value

a vector with the sum and the lower, upper confidence bound of the confidence interval

Arguments

x

a matrix with 3 columns, containing the estimate in the first column followed by the lower and the upper confidence interval .

Author

Andri Signorell

References

https://stats.stackexchange.com/questions/223924/how-to-add-up-partial-confidence-intervals-to-create-a-total-confidence-interval

See Also

BinomCI,

Examples

x <- do.call(rbind, 
             tapply(d.pizza$delivery_min, 
                    d.pizza$area, MeanCI))
SumCI(x)