Gamma Random Number with Shape Parameter from Matrix

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Debby Chairubby Lubis
评论： Debby Chairubby Lubis 2020-6-10
For example, my shape parameter value in 1x5 matrix = [1.1 1.2 1.3 1.4 1.5] and my scale parameter value is 2. How to generate gamma random number from those value at once so I can get the results in 1x5 matrix? Actually I want to generate from matrices 1x100 so it will be quite difficult if I have to generate them one-by-one manually.
Thank you for your kind help!
Regards,
Debby

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回答（1 个）

Walter Roberson
Walter Roberson 2020-6-9
gamrnd(2, [1.1 1.2 1.3 1.4 1.5])
  1 个评论
Debby Chairubby Lubis
Debby Chairubby Lubis 2020-6-10
Appreciate your kind answer!
However, I think it would be gamrnd([1.1 1.2 1.3 1.4 1.5], 2) since the format of gamrnd(A,B) which is A is the shape parameter. So, if my shape parameter is in 1x100 matrix, the code is as below:
shape_parameter = [2.14 2.30 2.46 2.64 2.83 3.03 3.25 3.48 3.73 4.00 4.29 4.59 4.92 5.28 5.66 6.06 6.50 6.96 7.46 8.00 8.57 9.19 9.85 10.56 11.31 12.13 13.00 13.93 14.93 16.00 17.15 18.38 19.70 21.11 22.63 24.25 25.99 27.86 29.86 32.00 34.30 36.76 39.40 42.22 45.25 48.50 51.98 55.72 59.71 64.00 68.59 73.52 78.79 84.45 90.51 97.01 103.97 111.43 119.43 128.00 137.19 147.03 157.59 168.90 181.02 194.01 207.94 222.86 238.86 256.00 274.37 294.07 315.17 337.79 362.04 388.02 415.87 445.72 477.71 512.00 548.75 588.13 630.35 675.59 724.08 776.05 831.75 891.44 955.43 1024.00 1097.50 1176.27 1260.69 1351.18 1448.15 1552.09 1663.49 1782.89 1910.85 2048.00]
scale_parameter = 0.3
x = gamrnd([2.14 2.30 2.46 2.64 2.83 3.03 3.25 3.48 3.73 4.00 4.29 4.59 4.92 5.28 5.66 6.06 6.50 6.96 7.46 8.00 8.57 9.19 9.85 10.56 11.31 12.13 13.00 13.93 14.93 16.00 17.15 18.38 19.70 21.11 22.63 24.25 25.99 27.86 29.86 32.00 34.30 36.76 39.40 42.22 45.25 48.50 51.98 55.72 59.71 64.00 68.59 73.52 78.79 84.45 90.51 97.01 103.97 111.43 119.43 128.00 137.19 147.03 157.59 168.90 181.02 194.01 207.94 222.86 238.86 256.00 274.37 294.07 315.17 337.79 362.04 388.02 415.87 445.72 477.71 512.00 548.75 588.13 630.35 675.59 724.08 776.05 831.75 891.44 955.43 1024.00 1097.50 1176.27 1260.69 1351.18 1448.15 1552.09 1663.49 1782.89 1910.85 2048.00], 0.3)
Is there no easier/quicker code since I have 1x100 matrix?

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