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Here you see the output you get from summarize.use http://www.ats.ucla.edu/stat/stata/notes/hsb1, clear (highschool and beyond (200 cases))
summarize read write math science socst
Variable | Obs Mean Std. Dev. Min Max
---------+-----------------------------------------------------
read | 200 52.23 10.25294 28 76
write | 200 52.775 9.478586 31 67
math | 200 52.645 9.368448 33 75
science | 195 51.66154 9.866026 26 74
socst | 200 52.405 10.73579 26 71
Here is the output you can get from univar.
univar read write math science socst
-------------- Quantiles --------------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
read 200 52.23 10.25 28.00 44.00 50.00 60.00 76.00
write 200 52.78 9.48 31.00 45.50 54.00 60.00 67.00
math 200 52.64 9.37 33.00 45.00 52.00 59.00 75.00
science 195 51.66 9.87 26.00 44.00 53.00 58.00 74.00
socst 200 52.40 10.74 26.00 46.00 52.00 61.00 71.00
-------------------------------------------------------------------------------
If you include the vlabel
option, it also includes the variable labels in the table.
univar read write math science socst, vlabel
-------------- Quantiles --------------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
read reading score
read 200 52.23 10.25 28.00 44.00 50.00 60.00 76.00
write writing score
write 200 52.78 9.48 31.00 45.50 54.00 60.00 67.00
math math score
math 200 52.64 9.37 33.00 45.00 52.00 59.00 75.00
science science score
science 195 51.66 9.87 26.00 44.00 53.00 58.00 74.00
socst social studies score
socst 200 52.40 10.74 26.00 46.00 52.00 61.00 71.00
-------------------------------------------------------------------------------
The boxplot option displays
a mini boxplot above each variable.
univar read write math science socst, boxplot
----------:::::::::|:::::::::----------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
read -----------------------::::::::|::::::::::::::-----------------------
read 200 52.23 10.25 28.00 44.00 50.00 60.00 76.00
write ---------------------------::::::::::::::::|::::::::::::-------------
write 200 52.78 9.48 31.00 45.50 54.00 60.00 67.00
math -------------------::::::::::::|:::::::::::--------------------------
math 200 52.64 9.37 33.00 45.00 52.00 59.00 75.00
science --------------------------::::::::::::|:::::::-----------------------
science 195 51.66 9.87 26.00 44.00 53.00 58.00 74.00
socst ------------------------------:::::::::|::::::::::::::---------------
socst 200 52.40 10.74 26.00 46.00 52.00 61.00 71.00
-------------------------------------------------------------------------------
Here we use the by(female) option
to display tables separately for males and females.
univar read write math science socst, by(female)
-> female=male
-------------- Quantiles --------------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
read 91 52.82 10.51 31.00 44.00 52.00 63.00 76.00
write 91 50.12 10.31 31.00 41.00 52.00 59.00 67.00
math 91 52.95 9.66 35.00 45.00 52.00 60.00 75.00
science 86 52.88 10.75 26.00 44.00 55.00 61.00 74.00
socst 91 51.79 11.33 26.00 46.00 51.00 61.00 71.00
-------------------------------------------------------------------------------
-> female=female
-------------- Quantiles --------------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
read 109 51.73 10.06 28.00 44.00 50.00 57.00 76.00
write 109 54.99 8.13 35.00 50.00 57.00 62.00 67.00
math 109 52.39 9.15 33.00 45.00 53.00 58.00 72.00
science 109 50.70 9.04 29.00 44.00 50.00 58.00 69.00
socst 109 52.92 10.23 26.00 46.00 56.00 61.00 71.00
-------------------------------------------------------------------------------
We can use the by(female)
and onehdr options to get a table with one header that can be a bit easier to read.
univar read write math science socst, by(female) onehdr
-------------- Quantiles --------------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
-> female=male
read 91 52.82 10.51 31.00 44.00 52.00 63.00 76.00
write 91 50.12 10.31 31.00 41.00 52.00 59.00 67.00
math 91 52.95 9.66 35.00 45.00 52.00 60.00 75.00
science 86 52.88 10.75 26.00 44.00 55.00 61.00 74.00
socst 91 51.79 11.33 26.00 46.00 51.00 61.00 71.00
-> female=female
read 109 51.73 10.06 28.00 44.00 50.00 57.00 76.00
write 109 54.99 8.13 35.00 50.00 57.00 62.00 67.00
math 109 52.39 9.15 33.00 45.00 53.00 58.00 72.00
science 109 50.70 9.04 29.00 44.00 50.00 58.00 69.00
socst 109 52.92 10.23 26.00 46.00 56.00 61.00 71.00
-------------------------------------------------------------------------------
Here we ask for a boxplot
for the variable write and ask that the boxplots be plotted using the
same scale (via onescal) so we could meaningfully compare the boxplot
of the males and females. You can see that the median of the boxplot is
higher for the females. (If we had omitted the onescal option,
each boxplot would be on its own scale).
univar write , by(female) onehdr boxplot onescal
----------:::::::::|:::::::::----------
Variable n Mean S.D. Min .25 Mdn .75 Max
-------------------------------------------------------------------------------
-> female=male
write -------------------:::::::::::::::::::::|:::::::::::::---------------
write 91 50.12 10.31 31.00 41.00 52.00 59.00 67.00
-> female=female
write ----------------------------:::::::::::::|::::::::::---------
write 109 54.99 8.13 35.00 50.00 57.00 62.00 67.00
-------------------------------------------------------------------------------
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