cv28_freeman_ppu {CleaningValidation}

Calculate Ppu using Freeman's Transformation

Description

This function calculates the Process Performance Index (Ppu) using Freeman's transformation, including a bootstrap method to estimate the confidence interval of Ppu.

Usage

cv28_freeman_ppu(data, residue_col, cleaning_event_col, usl_col)

Arguments

data

A data frame containing the dataset.

residue_col

The name of the column in 'data' containing residue or defect counts.

cleaning_event_col

The name of the column in 'data' used for grouping data by cleaning event.

usl_col

The name of the column in 'data' that contains the Upper Specification Limit (USL).

Value

A data frame with columns for the Method, Ppu, CI_Lower, and CI_Upper.

Author(s)

Chan, Mohamed, Lou, Wendy, Yang, Xiande [xiande.yang at gmail.com]

Examples

cv28_freeman_ppu(Eq_Mic, "Mic", "CleaningEvent", "USL")