Date: Mon, 16 Apr 2007 08:25:03 -0500
Reply-To: "Huang, JS" <Huang.JS@PRINCIPAL.COM>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: "Huang, JS" <Huang.JS@PRINCIPAL.COM>
Subject: Re: Simulation Question
In-Reply-To: A<F34B4120297BA14EA45722DF7F8B6FE622E782@INFP62.arbella.com>
Content-Type: text/plain; charset="us-ascii"
Try the following. Change the values of Seed, SetCount and SampleSize
if needed.
%let Seed=1234;
%let SetCount=100;
%let SampleSize=100;
%macro randLogNormal();
data Result(keep=count total);
call streaminit(&Seed);
retain total;
%do count=1 %to &SetCount;
total=0;
%do i=1 %to &SampleSize;
total=total+rand('LOGNORMAL');
%end;
output;
%end;
run;
proc print data=Result;
run;
%mend;
%randLogNormal()
***** Output *****
The SAS System 06:45
Monday, April 16, 2007 226
Obs total
1 181.266
2 165.501
3 146.775
4 188.868
5 194.848
6 131.635
7 178.292
8 190.820
9 167.235
10 163.259
11 175.953
12 142.320
13 147.884
14 160.838
15 187.107
16 201.528
17 157.628
18 173.848
19 124.137
20 141.176
21 149.986
22 149.576
23 180.703
24 162.769
25 128.761
26 148.220
27 163.856
28 180.346
29 177.306
30 178.500
31 165.587
32 179.555
33 143.243
34 185.710
35 200.746
36 154.556
37 215.235
38 146.304
39 146.694
40 207.311
41 163.405
42 147.413
43 142.533
44 148.664
45 168.637
46 156.259
47 209.457
48 177.061
49 182.105
50 183.956
51 125.292
The SAS System 06:45
Monday, April 16, 2007 227
Obs total
52 181.037
53 167.496
54 175.591
55 163.985
56 126.462
57 177.813
58 187.965
59 173.144
60 159.298
61 166.919
62 171.591
63 191.766
64 146.076
65 165.985
66 186.930
67 173.944
68 168.950
69 168.672
70 132.819
71 179.522
72 140.808
73 173.132
74 185.672
75 152.159
76 164.042
77 151.990
78 154.270
79 168.029
80 167.202
81 191.849
82 158.552
83 166.059
84 170.807
85 174.842
86 161.922
87 195.871
88 155.284
89 150.707
90 163.654
91 173.828
92 195.357
93 167.289
94 199.363
95 157.600
96 188.391
97 129.355
98 159.946
99 152.914
100 149.781
-----Original Message-----
From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU] On Behalf Of
Rahman, Sheikh
Sent: Monday, April 16, 2007 7:48 AM
To: SAS-L@LISTSERV.UGA.EDU
Subject: Simulation Question
Hello Everybody!
I have a situation where I have to generate 100 random numbers from a
standard lognormal distribution each time and add this numbers. I have
to repeat the process 100 times, and each time I have to sum up the
numbers.
How can I do this? How can I store the results in a file for further
calculations?
Any suggestion/help will be highly appreciated.
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