请教各位大侠，当运行program 命令时遇到Unknown function是怎么回事？

andre1985

11444

收藏 2011-11-25

program onesample,rclass
  1. drop _all
  2. set obs 30
  3. gen x=runiform()
  4. sum x
  5. return scalar mean _sample=r(mean)
  6. end
. simulate xbar=r(mean_sample),seed(101) reps(10000): onesample
Unknown function runiform()
an error occurred when simulate executed onesample
r(133);

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startyxf

2011-11-25 21:20:07

program onesample,rclass
set obs 30
tempvar x
*先得设定
gen `x' = runiform()
*注意上面等号后面貌似要空格
sum `x'
return scalar mean_sample=r(mean)
end
simulate xbar=r(mean_sample),seed(101) reps(10000):onesample

*如果你的onesample已经定义，先 program drop onesample

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andre1985

2011-11-26 00:22:35

program onesample,rclass
  1. set obs 30
  2. tempvar x
  3. tempvar x
  4. gen `x' = runiform( )
  5. sum `x'
  6. return scalar mean_sample=r(mean)
  7. return scalar mean_sample=r(mean)
  8. end

. simulate xbar=r(mean_sample),seed(101) reps(10000):onesample
Unknown function runiform()
an error occurred when simulate executed onesample
r(133);

按照你的命令又做了一次，还是r133错误，继续请你指点啊！