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Your LimeSurvey version: 6.x
Own serverI have been trying to use Google Charts to graph some data in Limesurvey without success. Any tips?
Additional details: I have run a few equations summarizing the data and now I would like to graph the results of those equations in the survey.

Hi,
unfortunately you did not show us what you tried "without success"?
Nevertheless:
Here is a sample survey with an implementation of Google Charts.
 

Personally I prefer to use the "highcharts" library.

Joffm
 

Hi Joffm,Thank you very much for the example graphs! They were very helpful in understanding how to use Google Graphs in Limesurvey.

I am stuck in loading participants’ previous answers into the graph.

For example, in your code you define the values that are displayed in the graph:

I would like to automatically load data from participant’s previous answers (from previous formulas or arrays of the survey, for example). Is this possible to do?

If this question is out of the scope of a community forum, please accept my apologies and let me know.

You see, here is 10, 20, 30,... hard coded.
Use ExpressionScript to pipe answers to previous questions, results of your equations, etc. into the chart data.

Thank you for your reply. Every time I try to use ExpressionScript to pipe answers to previous questions, the graph does not load and there is only a blank output. I am simply changing the hard coded value (e.g., {10}) for the ExpressionScript expression (e.g., {Q1}). There must be something more to it, in order to pipe answers to previous questions…

There must be something more to it,

No, it is not.
.
Here a multiple numerical question to enter same values
 
and the result
 

But how do you expect us to help, if you only say "without success" or "the graph does not load"?
Show us what you are doing.
Send a lss export of the relevant questions.
 

Here is the lss export. I am struggling to use the results of two equations to create the graph. Any solution to this?

Hi, this is quite easy to see.
Activate the survey, enter some data and have a look at the answer table.

a. You see that in CountQ1 and in CountQ2 there is stored a text.
 
Of course this is not accepted. It is obviously not a number

b. The calculation and the chart shouldn't be on the same page.

c. If you want to display the results - as you did - use a question of type "text display"

Another thing.
You use a scale in both arrays. So you should use numerical codes instead of this silly "AO01", "AO02",...
How do you calculate a mean of "AO01" and "AO04". It is not "AO02.5"
With numerical codes "1,2,3,4,5" your equation is short like this:
{sum(that.Q1.NAOK}

 



I changed all the mentioned things.

 

Joffm

Hi,

It all makes sense now… Thank you so much for your help, pedagogical approach, and patience!

Best