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T O P I C R E V I E W
pegor	Posted - 03/04/2005 : 09:24:42 AM Origin Version (Select Help-->About Origin): 7.5 Operating System:win xp Hi all, I want to generate some random numbers that have poisson distribution. Cpyang told me before to use the following code (thanks alot for ur help): void tt(int nCol = 1) { LT_execute("temp=Poisson(1000, 3)");// create 1000 points with mean = 3, result in dataset called temp Worksheet wks = Project.ActiveLayer(); Dataset dtemp("temp");// dataset temp can be accessed in OC like this Dataset aa(wks,nCol-1);// col(1), col(2) etc as Dataset aa = dtemp; LT_execute("del temp");// best to clean up temp dataset } and it worked perfectly, but the problem is that i want to change the mean so many times in the project, so i cant do it by hand each time,and i cant write: ("temp=Poisson(1000, mean)") and give values to mean. How can i do this? Thanks in advance, Pegor
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cpyang	Posted - 03/04/2005 : 09:33:30 AM here is the modified code, void tt(int nCol = 1, double dMean = 3.0) { string strLT; strLT.Format("temp=Poisson(1000, %f)", dMean); LT_execute(strLT);// create 1000 points with mean = dMean, result in dataset called temp Worksheet wks = Project.ActiveLayer(); Dataset dtemp("temp");// dataset temp can be accessed in OC like this Dataset aa(wks,nCol-1);// col(1), col(2) etc as Dataset aa = dtemp; LT_execute("del temp");// best to clean up temp dataset } CP

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