How can I add a Gaussian curve to a histogram on Excel?

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  • Start date Start date
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Guest

Trying to add a Gaussian (Normal Distribution) curve to a histogram, but I
dont know how. Any tips or advice?

Thanks
 
JC1379 -
Trying to add a Gaussian (Normal Distribution) curve to a histogram, but I
dont know how. Any tips or advice? <
Click to expand...

One way is to use a combination chart, with a Column chart type for the
vertical histogram bars and an XY (Scatter) chart type for the normal
density curve.

You could start with the chart generated by my free Better Histogram add-in,
available at www.treeplan.com, which produces a combination chart (so that
the horizontal axis is more properly labeled), and then you could change
that chart's XY (Scatter) data series to be based on worksheet data using
NORMDIST for the curve. You must be careful about scaling so that the Column
chart type and the XY (Scatter) chart type are aligned correctly.

- Mike
www.mikemiddleton.com
 
Mike,

I just downloaded your Better Histogram and the PDF. When I tried to overlay
a normal curve on the secondary axis (so that I can dispense with the
secondary axis line, etc.), it just didn't fit the curve over the entire
spectrum of values (those from the histogram on the primary axis)?

Any thoughts?

Thanks

Ariel
 
Ariel -

Appropriate scaling of all four axes is critical.

I do not have time to describe step-by-step instructions for the task, but I
have just posted an example worksheet of the results at
http://www.mikemiddleton.com (bottom left corner of the web page).

- Mike
 
Excellent, this is better than an explanation!

Mike Middleton said:
Ariel -

Appropriate scaling of all four axes is critical.

I do not have time to describe step-by-step instructions for the task, but I
have just posted an example worksheet of the results at
http://www.mikemiddleton.com (bottom left corner of the web page).

- Mike
Click to expand...
 
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