thank you for your answer. I know the command catplot, but I think I can't solve my problem with it, because the variable price is relevant for me. I would like to show the relation between price and headroom. In addition I would like to have the frequencies of the variable headroom as a label above the bars (price). I would like to show how often the headroom 1.5, headroom 2 etc. occurs in my data. All these information I would like to present in one graph.
In my original data I have interval of wages (x-axis) and effort (y-axis) and I would like to show how many people are in each unit (wage- interval), so these units sum up to 100%.
Does anybody know, how I could solve it?
Thank you very much.
Esther
>>> [email protected] 02/22/06 9:35 pm >>>
Yes; I know how to do this.
The Visual Guide is an excellent resource on official Stata
graphics. But -- correct me if I'm wrong -- it doesn't touch on
user-written programs. So, the usual route to follow is
. findit bar
which gives lots of pointers including
FAQ . . . . . . . . . . . . . . . . . . Creating percent summary variables
. . . . . . . . . . . . . . . . . . . . . . N. J. Cox and S. Merryman
11/05 How can I create variables containing percent
summaries?
http://www.stata.com/support/faqs/data/percentvars.html
SJ-4-2 gr0004 . Speaking Stata: Graphing categorical and compositional data
Q2/04 SJ 4(2):190--215 (no commands)
discusses graphical possibilities for categorical and
compositional data
catplot from http://fmwww.bc.edu/RePEc/bocode/c
'CATPLOT': module for plots of frequencies, fractions or percents of
categorical data / catplot shows frequencies (or optionally fractions or
percents) / of the categories of one, two or three categorical variables.
The / first named variable is innermost on the display; that is, its /
In your case, -price- is irrelevant, as you want a simple bar
chart of the frequencies of a variable. Installing -catplot-
gives you one way
. ssc inst catplot
. catplot bar headroom, percent blabel(bar, format(%5.2f))
But you can get there with official Stata too
. histogram headroom , discrete barw(0.25) w(0.5) percent addlabels
except that tweaking the format eludes me for the moment.
This may be covered in Michael Mitchell's book, but I can't
check. Colleagues grabbed my copy of the book gleefully as soon as they
spotted it and it's hardly been in my hands since the day it
arrived.
Nick
[email protected]
Esther Kessler
> I would like to have the frequencies in percent above the
> bars as a label. I couldn't find anything in the visual guide
> to stata graphics.
>
> To illustrate my problem:
> sysuse auto
> tab headroom
> graph bar price, over(headroom) blabel(bar, format(5%5.2d))
>
> Instead of the price I would like to have 5.14 above the
> first bar (headroom 1.5), 17.57 above the second bar
> (headroom 2.0) and so on.
>
> Does anybody know how to do this?
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