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Full Discussion: Problem using function in awk
Top Forums Shell Programming and Scripting Problem using function in awk Post 302451090 by kristinu on Sunday 5th of September 2010 04:33:41 PM
Old 09-05-2010
Yes, I think you are right. Can only return one value. But it does not matter in my case. Since they are both random numbers I can just use one of them.

---------- Post updated at 03:33 PM ---------- Previous update was at 02:47 PM ----------

I have this awk script, and I output mean and sigma, but the result is not what I assigned to mean and sigma.

Code:
 
 function rgaussian1() {
      a = rand()
      b = rand()
      c = rand()
      r1 = a + b + c
      return r1
  }

  function rgaussian11(mean, sigma) {
      a = rgaussian1()
      b = mean + (a * sigma)
      print "VALUES: ",mean,sigma
      return b
  }

  NF == 2 {
      a = 5
      b = 0.5
      r1 = rgaussian1()
      r2 = rgaussian11(a,b)
      print $0,$2,r1,r2
  }

As you can see below I am not getting the values of mean and sigma that I have passed to the function.



Code:
VALUES:  0.319071 0.692849
10 0  0 1.50904 -0.654771 1.0627 0.833281
VALUES:  0.244565 0.468954
13 5.74484  5.74484 2.47868 1.11852 0.990984 -0.889183
VALUES:  0.787803 0.202516
16 10.1769  10.1769 0.570419 -0.736454 1.48426 1.09622
VALUES:  0.187611 0.611989
19 13.8527  13.8527 1.40469 -0.309851 0.53924 -1.40168
VALUES:  0.669174 0.450629
22 16.8957  16.8957 1.38384 0.0894231 -0.804437 -0.168806
VALUES:  0.523561 0.360272
25 19.3552  19.3552 1.05967 1.17779 2.0299 -0.459928
VALUES:  0.749601 0.872226
28 21.3932  21.3932 1.02497 -0.17011 -1.12271 0.916729
VALUES:  0.39957 0.0115686
31 23.0869  23.0869 0.713036 -0.15845 -0.852606 -0.867672
VALUES:  0.488232 0.786265
34 24.5867  24.5867 1.38646 0.907416 0.215826 -0.207289
VALUES:  0.721516 0.283772
37 25.9775  25.9775 1.2652 0.18478 0.643813 1.46849
VALUES:  0.796942 0.08114
40 27.2779  27.2779 1.07348 2.44546 -0.369929 0.784368
VALUES:  0.32347 0.847031
43 28.5486  28.5486 1.86091 -0.337079 0.683475 0.124624
VALUES:  0.858226 0.607827
46 29.754  29.754 1.81017 0.697858 -0.547066 1.12782
VALUES:  0.096079 0.495649
49 30.9075  30.9075 1.82609 1.88842 -0.843563 0.535018
VALUES:  0.601441 0.696511
52 32.0179  32.0179 1.4897 0.233247 -0.0728211 -1.17591
VALUES:  0.460437 0.181952
55 33.0682  33.0682 0.657609 -0.594157 -0.79817 -0.281863
VALUES:  0.630648 0.42759
58 34.082  34.082 1.48051 0.869132 0.319669 -0.426564
VALUES:  0.446626 0.770096
61 35.0402  35.0402 1.70818 -0.775314 -0.0754717 -0.160226
VALUES:  0.127291 0.985517
64 35.9725  35.9725 1.59898 -1.89246 -0.441951 0.257042
VALUES:  0.970425 0.0665038

 

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