varlist or statlist required

[floris Lucia]

Hello,
I would like to make a graph with a variable and several options, but I get this error message; "varlist or statlist required".

For example several answer options in one question.

. graph bar, over ( e13)
varlist or statlist required
r(198);


Can anyone help me?

Thanks a lot

Lucia

En français:

Bonjour,
J'aimerai faire un graph avec une variable et plusieurs options, mais j'obtiens ce message d'erreurs ; "varlist or statlist required".


Par exemple plusieurs options de réponses dans une question.


. graph bar, over ( e13)
varlist or statlist required
r(198);


Quelqu'un pourrais-il m'aider ?

Merci beaucoup

Lucia

[Carlo Lazzaro]

Lucia:
welcome to this forum.
A trivial issue indeed:
-graph bar- needs a variable to make the option -over()- work out properly, as in the following toy-example:

. use "https://www.stata-press.com/data/r17/nlswork.dta"
(National Longitudinal Survey of Young Women, 14-24 years old in 1968)
. graph bar age, over (year)

[Maarten Buis]

You have to tell Stata what the height of the bars is supposed to represent. Maybe you want:

sysuse auto, clear
graph bar (count), over(rep78)

or

graph bar (percent) , over(rep78)

[floris Lucia]

Hello, Thank you very much for your reply. Here is another problem:


. sysuse auto, clear
(1978 Automobile Data)

.
. graph bar (count), over(rep78)
varlist required
r(100);

Thank you for your help
Lucia

[Maarten Buis]

Seems like you are using a very old version of Stata (version 12 or older). You need to tell us that. If you don't, then we need to make an assumption. The default assumption on this list is that if you don't tell us, then you have the latest version.

The following should work in your version

sysuse auto
gen count = 1 if !missing(rep78)
graph bar (count) count, over(rep78)

[Nick Cox]

Which version of Stata are you using? This syntax was, IIRC, introduced in the lifetime of Stata 13 and so is not supported in Stata 12 or earlier.

See also the request to flag use of an out-of-date version https://www.statalist.org/forums/help#version

[floris Lucia]

Bonjour,
merci beaucoup pour votre réponse.
En effet j'ai une ancienne version stata (Stata IC12.1).
Avec les conseils de Maarten Buis, cela a bien fonctionné.
Je dois maintenant créer des barres de graphique empilées. Je vais essayer, mais si vous avez des conseils. J'accepterai avec plaisir.
Lucie

[Nick Cox]

This should also work in Stata 8 up, provided you can install from SSC

sysuse auto, clear

ssc install catplot

catplot rep78, recast(bar)

[floris Lucia]

Dear Nick,
It works very well, thank you
Lucia

[Nick Cox]

C'est bien.