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From |
"Sami Souabni" <S.A.SOUABNI.506831@swansea.ac.uk> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
st: append and post commands: code equivalence |

Date |
Tue, 3 Jul 2012 21:30:25 +0100 |

Having come across the same error repeatedly while running the snippet below forval i = 1/`numq' { local q = quan[1,`i'] local numpred = numdraw[1,`i'] use x`1'b`2'`q'.dta, clear bsample `numpred', cluster(pid) drop pid if `i'==1 { quietly save x`1'b`2', replace } else { append using x`1'b`2' quietly save x`1'b`2', replace } } which ends in "file x`1'b`2' could not be found", I created the code below as a work-around. Using it in my application has resulted in different results, implying that the code above and below are not equivalent. Therefore, could anyone tell me if the code snippet above is equivalent to this code snippet: tempname 3 postfile `3' x`1'b`2' using tmp/x`1'b`2', replace forval i = 1/`numq' { local q = quan[1,`i'] local numpred = numdraw[1,`i'] use tmp/x`1'b`2'`q', clear bsample `numpred', cluster(pid) drop pid local N=_N forval o = 1/`N' { quietly { preserve keep if _n==`o' local x`1'b`2' = x`1'b`2' post `3' (`x`1'b`2'') restore } di "`q'th percentile of x`1'b`2' sampled" } } postclose `3' If it is not equivalent, how could the first snippet more accurately emulate the second? Thanks for any suggestions! * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

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