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Proportional hazards model
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Proportional hazards models are a class of survival models in statistics. Survival models relate the time that passes before some event occurs to one or more covariates that may be covariateis not res ...
2015-10-17 07:19 - zhangwc08 - R语言论坛
Proportional random sampling.sps
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DATA LIST FREE / id numb .
BEGIN DATA
1 5 2 15 3 30
END DATA.
* Next loop 'expands' the data file.
LOOP cnt=1 TO numb.
XSAVE OUTFILE='c:\temp\temp.sav' /KEEP id numb.
END LOOP.
EXECUTE.
...
2014-4-30 13:12 - ReneeBK - SPSS论坛