Hello,

Please can anyone advise how I generate the interquartile range? I have a data example for age here:

Code:
. sum age, detail

                     Age at recruitment
-------------------------------------------------------------
      Percentiles      Smallest
 1%           41             40
 5%           44             40
10%           47             40       Obs                 990
25%           53             40       Sum of Wgt.         990

50%           60                      Mean            58.5101
                        Largest       Std. Dev.       7.68262
75%           65             70
90%           68             70       Variance       59.02265
95%           69             70       Skewness      -.5442946
99%           69             70       Kurtosis       2.248327