![]() ![]() The Control Charting and Histogram macros in QI Macros alone have saved me hours of work and allowed me to present data to management in a format that is meaningful. I work with Excel eight hours a day and thought that I had written macros that made me efficient. For a lazy developer like me, It is very time consuming to use my Math skill to get the answer so I created this quick reference lookup for myself. Many times I needed to find the column number associated with a column letter in order to use it in Excel Macro. I am very impressed with QI Macros Software. Here is a quick reference for Excel column letter to number mapping. Allows you to adjust histogram bin intervals and the approximate number of bars.Allows you to experiment with how spec limits impact Cp Cpk by changing them in the histogram calculations worksheet.Calculations can be viewed and updated in the Excel worksheet created by QI Macros.Calculates more than 20 process capability analysis metrics including Cp Cpk and Pp Ppk.What is Cool about QI Macros Histogram Maker in Excel? Analyze and Improve – QI Macros will prompt you for spec limits, do the histogram calculations and draw the histogram with a curve for you.Click – on QI Macros menu in Excel and choose Histogram with Cp Cpk.Point – Just select your data in an Excel worksheet. ![]() How Does QI Macros Histogram Maker Work? QI Macros installs right in Excel: Measurements outside of the spec limits represent data points that don't meet customer requirements. The customer's upper specification (USL) and lower specification limits (LSL) determine how well the process delivers on customer requirements. Histograms show the spread, or dispersion, of variable data.
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