y_savasdm.hlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

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{help contents:Top}
> {help y_stat:Statistics}
> {help y_topical:Special topics}
> {help y_sa:Survival analysis}
> {help y_sabasic:Basic setup}
{bind:> {bf:Data management}}
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{title:Help file listings}

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{bf:{help stfill:Fill in by carrying forward values of covariates}}{break}
    change variables to contain the value at the earliest time each
    subject was observed or instead fill in missing values with most recent
    observation

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{bf:{help stgen:Generate variables reflecting entire histories}}{break}
    intended for use with multiple-record survival data

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{bf:{help stsplit:Split time-span records}}{break}
    split episodes into two or more episodes at the implied time points
    since being at risk or after a particular time point or at the failure
    times

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{bf:{help stsplit:Join time-span records}}{break}
    join episodes back together when that can be done without loss of
    information

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{bf:{help stbase:Form baseline dataset}}{break}
    produce related st dataset with every variable set to its value at
    baseline, or alternatively, produce a related cross-sectional dataset

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