Building Control Charts With R

Kevin Feasel

2018-05-09

R

Kamal Kumar covers one of my favorite types of charts:

Control charts are used during the Control phase of DMAIC methodology. Control charts, also known as Shewhart charts or process-behavior charts, are a statistical process control tool used to determine if a manufacturing or business process is in a state of control. If analysis of the control chart indicates that the process is currently under control, then no corrections or changes to process control parameters are needed. Moreover, data from the method can be used to predict the future performance of the process. If the control chart indicates that the process is not in control, analysis of the chart can help determine the sources of variation, as this will result in degradation of process performance.

There are many packages in R, which can be used for analysis related to Six Sigma. Here, we will go through qcc package (R package for statistical quality control charts) and learn “How to create control chart (to know whether the process is in control)”.

Control charts are great for telling if a process has changed in some important way—if your machine is boring holes outside of tolerances, if your busy web server is getting closer to the breaking point, etc.

Related Posts

Improving Plots With ggformula

Sebastian Sauer shows how you can use the ggformula package combined with ggplot2 to enhance your R visuals: Since some time, there’s a wrapper for ggplot2 available, bundled in the package ggformula. One nice thing is that in that it plays nicely with the popular R package mosaic. mosaic provides some useful functions for modeling along with a tamed and consistent […]

Read More

Installing R From Powershell

Tomaz Kastrun shows us how to install R and RStudio via Powershell: For the brevity of this post, I will only download couple of R packages from CRAN repository, but this list is indefinite.There are ways many ways to retrieve the CRAN packages for particular R version using powershell. I will just demonstrate this by […]

Read More

Categories

May 2018
MTWTFSS
« Apr Jun »
 123456
78910111213
14151617181920
21222324252627
28293031