Correlation shows NA

popmaieye · Postby **popmaieye** » Fri Feb 06, 2015 8:37 pm

Dear all,

Could you please advise me, I try to do correlation 9 variables however result shows NA in one of them shows NA correlation.

Thank you

startz · Postby **startz** » Fri Feb 06, 2015 9:09 pm

Might be that there are no valid matching observations in the sample. Also some chance that one of the series is constant.

popmaieye · Postby **popmaieye** » Fri Feb 06, 2015 9:37 pm

Might be that there are no valid matching observations in the sample. Also some chance that one of the series is constant.

Yes one of variable is constant so how could i fix it.

Thank you very much

startz · Postby **startz** » Sat Feb 07, 2015 7:58 am

What do you think a correlation means with a variable that never changes?

popmaieye · Postby **popmaieye** » Sat Feb 07, 2015 9:41 am

What do you think a correlation means with a variable that never changes?

I got it.

Thank you

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