Comments on: Fixing a Control Chart http://helpmeviz.com/2014/12/12/fixing-control-chart/ Helping people with everyday data visualizations Thu, 08 Jan 2015 01:10:38 +0000 hourly 1 http://wordpress.org/?v=4.1 By: Bob Miller http://helpmeviz.com/2014/12/12/fixing-control-chart/#comment-16640 Wed, 07 Jan 2015 19:34:25 +0000 http://helpmeviz.com/?p=686#comment-16640 Chart showing how it looks when plotted

]]> By: Bob Miller http://helpmeviz.com/2014/12/12/fixing-control-chart/#comment-16639 Wed, 07 Jan 2015 19:33:57 +0000 http://helpmeviz.com/?p=686#comment-16639 Ok. I roughed something out showing my interpretation of John Peltier’s logic.

]]> By: Bob Miller http://helpmeviz.com/2014/12/12/fixing-control-chart/#comment-16634 Wed, 07 Jan 2015 17:48:43 +0000 http://helpmeviz.com/?p=686#comment-16634 Would you be able to post an edited data set just with the points and standard deviation? It would be easier to make suggestions and show what we mean without having to recreate the data.

]]> By: Jon Peltier http://helpmeviz.com/2014/12/12/fixing-control-chart/#comment-15337 Mon, 22 Dec 2014 17:16:04 +0000 http://helpmeviz.com/?p=686#comment-15337 The way I do this is to add a column where you test each rule (so I like helper columns, I like things to work). A formula in each column returns TRUE if the rule has been broken. You can either add one series to the chart for each rule and format each differently (to identify which rules were broken where), or add one final column which is true if any of the rules were broken and plot just this column.

Use slightly larger markers for the added data, and give them a color that draws attention.

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