---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
      name:  <unnamed>
       log:  /homes/data/natality/1990/desc/natl1990/byvar/tab/prolong.log
  log type:  text
 opened on:   3 Jan 2016, 12:31:42

Frequencies for first 10,000 rows of prolong variable in natl1990 dataset :

  Prolonged |
      labor |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         52        0.52        0.52
          2 |      9,882       98.82       99.34
          9 |         66        0.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016
 tail -n+3 /homes/data/natality/1990/desc/natl1990/byvar/tab/prolong.log | egrep -v '(       log:|  log type)' | head -n -5 > /homes/data/natality/1990/desc/natl1990/byvar
> /tab/prolong.txt