How can I show a stacked bar graph with the previous answers of the respondents stored in a internal variable?

Question

Hello, I have created three internal variables 'co2_transport', 'co2_accommondation' and 'co2_onsite' all containing a decimal value. Now, I want to create a stacked bar graph to visualize the the answers of the respondents at a later stage in the survey. Could you help me with the corresponding HTML/PHP codes that I would need to use?
Thank you for your valuable support!

Answer 1

Please lookup the HTML code for a stacked bar chart with ChartJS.

Wehn you have that, replace the numbers with placeholders, and use a little PHP code above the HTML element for the bar chart to insert your numbers there.

Please do not forget the library('chartJS') on the page, see visual feedback.

Comments

Thank you! It worked :-)