How to define if variable with one unknown parameter

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Tor Berge
Tor Berge 2015-3-7
评论： Star Strider 2015-3-7
Hi,
Working with the JONSWAP spectrum, with an unknown frequency f and a known frequency fp
Sigma value is depending on the relation between f and fp.
If f is smaller or equal to fp, then sigma = 0.07
If f is larger than fp, then sigma = 0.09
Could someone explain how to perform this is in Matlab?

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Star Strider
Star Strider 2015-3-7
编辑：Star Strider 2015-3-7
The easiest way:
sigmafun = @(f,fp) [(f <= fp)*0.07 + (f > fp)*0.09];
sigma1 = sigmafun(1,2) % Test Calls
sigma2 = sigmafun(2,1)
sigma3 = sigmafun(3,3)

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