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Comparing Two Histograms in Excel

View Before and After Histograms Side by Side

It's hard enough to create one histogram using Excel's Data Analysis Toolpack much less two histograms side by side. But its easy using QI Macros Histogram Template for Excel.

Creating Side by Side Histograms is Easy Using QI Macros

 

To use the side by side histogram template:

1. Click on QI Macros Menu in Excel and select Capability Templates, Histogram with Cp Cpk.
   
2. Then select the second worksheet tab "Compare 2 Histograms."
   
3. Input the data and spec limits for both histograms in the yellow shaded input areas.
   • Histogram 1: data in columns A to E and spec limits in T1 and T2.
   • Histogram 2 : data in columns F to J and spec limits in AD1 and AD2.

   

4. To switch between sigma estimator formulas, change cell V2 to: 1) Pooled SD, 2) Sbar or 3) Rbar.
5. The histograms with bell curves are created to the right. Right click on the Y axis to change minimum or maximun values if you want the scales to be the same.
6. Process capability metrics Cp Cpk Pp Ppk are also calculated for comparison.

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Why Choose QI Macros to Perform Capability Analysis and Draw Histograms?