Right correlation formula to use

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Carlotta Fabris 2019-3-16

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https://ww2.mathworks.cn/matlabcentral/answers/450397-right-correlation-formula-to-use

评论： Carlotta Fabris 2019-3-25

Hi!

I have a 12x1 vector, and a value. I would like to find the correlation of each of the vector values with my variable. How can I do it?

I tried with corr, corrcoef, corr2 and I only got NaN, why is that?

To clarify my vector is

x = [0.0000827

0.000229

0.000358

0.000486

0.000561

0.000564

0.00483

133

167

178

213

386

];

and my value is y = 2.261133333.

Any suggestions?

Thank you,

Carlotta.

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Image Analyst 2019-3-17

It is not clear. I'm not sure what DV is. Are the DV values the values in x? But x has only 12 continuous values, not 250. And only the fractional part seemed to be quantized into levels. And the value of x are not between 1 and 4. Please attach your data.

And I agree with the others in that it does not make sense to correlate a single value against a set of many other values - you can only correlate one set with another. Make another shot at trying to clearly explain things.

Carlotta Fabris 2019-3-25

DVs.xlsx

I am attaching you an Excel file with the DVs. What I talked about before was the mean I did of these DVs considering the ones I was interested in.

I have the peak values and these DVs, what I would like to understand is: is there a correlation between the peaks and the DVs? How can I calculate this correlation? If this is not possible, then what could I do?

Thank you.

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