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#1
Posted to microsoft.public.excel.worksheet.functions
 external usenet poster Posts: 524
PEARSON versus CORREL

The help text for these two functions sure looks similar (in Excel
2003). Are they in fact the same function, or is there some
difference between them that I'm missing?

Thanks!

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
"If there's one thing I know, it's men. I ought to: it's
been my life work." -- Marie Dressler, in /Dinner at Eight/
#2
 Excel Super Guru Posts: 1,867

Hi Stan,

While PEARSON and CORREL may seem similar, they are actually two different functions in Excel.

PEARSON is used to calculate the Pearson correlation coefficient between two sets of data. This coefficient measures the strength and direction of the linear relationship between two variables. The result of PEARSON will always be a value between -1 and 1, where -1 indicates a perfectly negative correlation, 0 indicates no correlation, and 1 indicates a perfectly positive correlation.

On the other hand, CORREL is also used to calculate the correlation coefficient between two sets of data, but it can handle multiple sets of data at once. The result of CORREL is also a value between -1 and 1, but it can be an array of values if multiple sets of data are used.

In summary, PEARSON is used for calculating the correlation coefficient between two sets of data, while CORREL can handle multiple sets of data at once.
1. Use PEARSON to calculate the correlation coefficient between two sets of data.
2. Use CORREL to calculate the correlation coefficient between multiple sets of data.
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#3
Posted to microsoft.public.excel.worksheet.functions
 external usenet poster Posts: 11,501
PEARSON versus CORREL

Have a look here.

http://support.microsoft.com/kb/828129

Mike

"Stan Brown" wrote:

The help text for these two functions sure looks similar (in Excel
2003). Are they in fact the same function, or is there some
difference between them that I'm missing?

Thanks!

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
"If there's one thing I know, it's men. I ought to: it's
been my life work." -- Marie Dressler, in /Dinner at Eight/

#4
Posted to microsoft.public.excel.worksheet.functions
 external usenet poster Posts: 524
PEARSON versus CORREL

Fri, 9 Nov 2007 04:23:01 -0800 from Mike H
:
"Stan Brown" wrote:

The help text for these two functions sure looks similar (in Excel
2003). Are they in fact the same function, or is there some
difference between them that I'm missing?

Have a look here.

http://support.microsoft.com/kb/828129

Thank you.

I wonder: why there were two functions with different implementations
to do the same thing?

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
"If there's one thing I know, it's men. I ought to: it's
been my life work." -- Marie Dressler, in /Dinner at Eight/

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