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davil2000 发表于 2012-11-15 10:51 data a (type=corr); _type_='corr'; input x1-x3;
jingju11 发表于 2012-11-16 03:11 x=rand('TABLE',0.2,0.3,0.4,0.1); 产生数字1,2,3,4 with probability as above Jingju