Dear R People: I am using qcc for a quality control class. I have used qcc with type "xbar.one" for individuals but cannot determine how to plot a moving range control chart. Has anyone done that, please? Thanks, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com
My favorite Control chart is based on MASF - Multivariate Adaptive Statistical Filtering and it is called IT-Control Charts (good to use against date-time stamped data like System performance metrics. And that is actually based on moving range that MASF calls as a reference set. I have recently started using R to build IT-Control Chart and I am publishing my progress in my blog - System Management by Exception( http://itrubin.blogspot.com http://itrubin.blogspot.com ) . See the last posting related to your question: http://itrubin.blogspot.com/2012/03/r-script-to-plot-it-control-chart.html R-script to plot IT-Control Chart against MySQL -- View this message in context: http://r.789695.n4.nabble.com/plotting-moving-range-control-chart-tp848263p4496577.html Sent from the R help mailing list archive at Nabble.com.
See one more R-script (to prepare data for MASF Control Chart) in my other blog post: http://itrubin.blogspot.com/2012/03/r-script-to-aggregate-etl-to-mysql.html R-Script to Aggregate (ETL to MySQL) Actual data with Base-line data for IT-Control Charts -- View this message in context: http://r.789695.n4.nabble.com/plotting-moving-range-control-chart-tp848263p4510643.html Sent from the R help mailing list archive at Nabble.com.