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Multiple Histograms on One Chart?

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  • #30872

    sqe
    Member

    Hello everyone,
    I’m trying to plot two histograms from two different samples on one chart.  I’ve tried Excel, Minitab and haven’t had much luck finding a way to do this.  Either it isn’t possible, or I’m overlooking how to do it. 
    Any help with this is appreciated.
    Thanks

    0
    #81001

    Arthur
    Participant

    Can you rephrase the question.  The purpose of a histogram is to understand the form of a distribution, and compare it to a standard.
    If all of the data is combined on one histogram you will view the total  distribution.
    Are you trying to show the shift in x-bar, UCL, and LCL, from two different samples and display both on one chart?

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    #81004

    mcleod
    Member

    SQE –
    You can do it in Minitab.  I had to do this exact thing for one of my projects.  It’s good for presentation purposes, but doesn’t yield much data other than giving you a visual.  You can plot it, but it doesn’t show much as far as interference or ppm.  You still have to run those on the capability study.  Here are the steps:
    Graph -> histogram -> put data from 1 in X1 then data from 2 in X2
    -> frame -> multiple graphs -> click on overlay graphs on same page
    -> OK -> OK

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    #81006

    Nonya
    Participant

    I think that only women blackbelts are able to have multiple histograms.Hope this helps!

    0
    #81048

    mcleod
    Member

    It depends on the skill level of the black belt. 

    0
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