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Re: st: Multiple single-variable stacked bar charts on the one axis
From
Natalie Herd <[email protected]>
To
[email protected]
Subject
Re: st: Multiple single-variable stacked bar charts on the one axis
Date
Mon, 8 Apr 2013 13:08:12 +1000
Thanks for your advice David and Nick...I will look into some
alternative charts.
Cheers, Natalie
________________________________
Natalie Herd PhD, Director of Social Research
[email protected] | +61 417 594 775
214 Kerr Street, Fitzroy, Victoria 3065 | +61 3 9416 5006
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Usual work days - Tuesday, Wednesday, Friday
On Sun, Apr 7, 2013 at 10:15 PM, David Hoaglin <[email protected]> wrote:
> Natalie,
>
> Stacked bar charts are usually an inferior way to display data. The
> book by Naomi Robbins (2005) has an accessible discussion of some
> alternatives. As a summary, it says, "Stacked bar chart: Do not use,
> because of their perceptual problems." Better displays have been
> available in the literature on statistical graphics for some time.
> See, for example, the book by Cleveland (1985).
>
> David Hoaglin
>
> Cleveland, WS (1985). The Elements of Graphing Data. Wadsworth
> Advanced Books and Software. (Revised edition: Hobart Press, 1994)
>
> Robbins, NR (2005). Creating More Effective Graphs. Wiley-Interscience.
>
> On Sun, Apr 7, 2013 at 5:54 AM, Natalie Herd
> <[email protected]> wrote:
>> Hi Statalist!
>>
>> I am trying to create a stacked bar chart of 10 categorical variables
>> (3 categories per variable) on a single axis (i.e., 10 separate bars,
>> with the %s for each of the 3 categories stacked on top of one
>> another).
>>
>> The variables are fit1_cat thru fit10_cat.
>>
>> I have tried the following options:
>>
>> 1) I can get a single stacked bar for one variable by using the
>> following syntax:
>>
>> tab fit1_cat,g(fit1_cat_v2)
>>
>> graph hbar fit1_cat_v21-fit1_cat_v23, stack percent l1title(var 1)
>>
>> 2) Alternatively, I can also get a single stacked bar using catplot:
>>
>> catplot fit1_cat, asyvars stack percent l1title(var 1)
>>
>> 3) The final approach I have tried is running the 10 stacked bar
>> charts separately and then using grc1leg to combine them:
>>
>> grc1leg c1.gph c2.gph c3.gph c4.gph c5.gph c6.gph c7.gph c8.gph c9.gph
>> c10.gph, cols(1) imargin(0 0 0 0) ycommon xcommon legendfrom(c2.gph)
>>
>> Unfortunately, this last approach squashes the bottom bar due to the
>> presence of the y scale (something that I have excluded from all of
>> the other bars). I could just have no y scale, but that would not be
>> ideal.
>>
>> Is there a better way to achieve this type of chart?
>>
>> As an aside, is it possible to change the angle of the bar label
>> l1title, so that it runs horizontally rather than vertically?
>>
>> Thanks, Natalie
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