dichotomous disaster

Bug Fix Release

• a bug associated with drawing the 1n2 sigma lines on the QC charts.
• a strange ggplot bug around the word color and colour effecting violation plots.

Too see ggQC in action or get help on special topics visit - http://rcontrolcharts.com/

v0.0.3

pre-release spelling fix

v0.0.2

New Functions

• QC_Violations(): NEW function that calculates QC violations for Shewart Quality Control Charts.

• stat_qc_violations(): NEW ggplot stat function to graphically view QC violations in a data set.

Updated Functions

• QC_Lines(): Updated function output to include the calculated sigma value.

Resolved Issues

• Fixed (#32): Observed that when n > 100 I got a convergence error for D5. Unfortunately this causes problems with all the quailty control charts if n > 100.

ggQC Version 0.0.1

New Functions

• QC_Lines() : Output quality control chart data in table format
• stat_QC() : ggplot stat to generate control charts supported methods
• stat_mR(): ggplot stat to generate mR chart.
• stat_QC_labels(): ggplot stat to write text labels on control chart center line and limits.
• 30 plus functions to calculate specific control chart constants. (recommend using QC_Lines())

Apolo's Apples

First Release of ggQC