FW: lspoly didn't wok when the number of data points equal to the number of coefficients

From: richardljy@hotmail.co.uk
To: ncl-talk@ucar.edu
Subject: lspoly didn't wok when the number of data points equal to the number of coefficients
Date: Sat, 21 Dec 2013 15:45:08 -0500

x = (/-4.5, -3.2, -1.4/)y = (/ 0.7, 2.3, 3.8/)n = 3 c = lspoly(x,y, 1, n) print(c)c will be(0) 1e+20(1) 1e+20(2) 1e+20

But if n=2 c will be(0) 5.268707(1) 0.9896836
I also did the test in the 4 element array, when n=4, it didn't work. only when n is less than the number of data points
Any body help me? thanks
                                                                                                                                             

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Received on Sat Dec 28 05:01:24 2013