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Trying to Create Between/Within Histograms in Excel?

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Step by step instructions to create a Between/Within Histogram using QI Macros.

Used to represent the Potential Process Tolerance, you can create a Histogram Cp Cpk (Between/Within) chart within Excel by selecting your data set and clicking on the "Histograms & Capability" drop-down menu > "Histogram Cp Cpk (Between/Within)":

If you have a single-column set of data, you will receive the following "Subgroup Size" prompt - enter "2", as it is required to have a minimum of 2 subgroups of data to perform a Between/Within Histogram:

If you have multiple columns of data and receive the following prompt, select "Values" if your first column of data is NOT a label:

Then, input your Upper and Lower Specification Limits when prompted. If you do not have one, USL/LSL will be calculated for you - select "OK" for each prompt:

You will also be asked for the "Approximate Number of Bars." If you do not know the approximate number of bars you would like on your Histogram, press "OK":

Once completed, a Between/Within Histogram is created:

NOTE: The Between/Within Histogram uses between/within-subgroup standard deviation, instead of overall standard deviation.

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Between/Within Histogram Template

Or you can use our Histogram template to create a Between/Within Histogram! To do so, click on the "Capability Templates" drop-down menu > "Histogram with Cp Cpk":

Next, select the "Histogram Between/Within" tab to open the template:

Lastly, input your data set in columns A through J, and enter your Upper and Lower Spec Limits in Q1 and Q2 (It is required to have a minimum of 2 columns of data to perform a Between/Within Histogram):

NOTE: The Estimator is defaulted to Pooled Standard Deviation (1) in cell S2, however you can change the Estimator to Sbar (2) or Rbar (3).

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