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Last Post 02 May 2010 01:39 AM by  anon
values from IDL functions and Excel different
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anon



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02 May 2010 01:39 AM
    Hello, I used these functions in IDL and Excel and got different values! What is wrong? * different 'r' Excel: correl IDL: r_correlate * different 'A' and 'B' for y=A+Bx Excel: add trendline --> show equation IDL: linfit Thank you in advance

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    03 May 2010 01:19 PM
    Dear Heid, Sorry, but could you explain again what the difference appear to be?. Are you saying that the R_CORRELATE routine in IDL gives different results than the equivalent function in Excel? Cheers, Fernando

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    04 May 2010 12:50 PM
    in Excel correl(x,y) gives -0.529830324 in IDL r_correlate (x,y) gives -0.512849 Thank you in advance
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