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       log:  /Volumes/ecxs2/users/baum/crsp/327evstud1.smcl
  log type:  smcl
 opened on:  19 Feb 2008, 14:45:50



. use crspret, clear



. g caldt = date(date,"MDY")



. format caldt %td



. compress 
caldt was float now int



. sort permno caldt



. desc



Contains data from crspret.dta
  obs:    10,657,623                          
 vars:             5                          
 size:   277,098,198 (47.1% of memory free)
-------------------------------------------------------------------------------
              storage  display     value
variable name   type   format      label      variable label
-------------------------------------------------------------------------------
permno          float  %9.0g                  CRSP Permanent Number
permco          float  %9.0g                  CRSP Permanent Company Number
date            str8   %8s                    Date of Observation
ret             float  %9.0g                  Holding Period Return
caldt           int    %td                    
-------------------------------------------------------------------------------
Sorted by:  permno  caldt
     Note:  dataset has changed since last saved



. su



    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      permno |  10657623    72581.18    22849.81      10001      93105
      permco |  10657623    21437.27    12927.71          5      51568
        date |         0
         ret |  10528995    .0009371    .0433201  -.9565217     15.955
       caldt |  10657623    16041.71    639.1697      14977      17164



. saveold crspret200106, replace
file crspret200106.dta saved



. log close
       log:  /Volumes/ecxs2/users/baum/crsp/327evstud1.smcl
  log type:  smcl
 closed on:  19 Feb 2008, 14:46:24
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