Hi Shashi- Thanks for your reply.
Yes, I can confirm that the values ylineA and ylineB are numbers.
Here is a sample project that you may peruse. It is the same code that is listed in the body of this message above. https://drive.google.com/file/d/1Qrq_MFc5ehzCA_nlIc0ad0N821-3tgkv/view?usp=sharing to see a live working version you may visit temporarily, http://cronkflies.com/gezond/charts/test.php?id=17
Let me know if you have any further thoughts or need further information.
Hi Vishwas. I’m so very sorry that I did not get back to this forum to note it. I figured out the issue and have gone on.
The reason the 404 Not Found message is that I was able to use code combined into a single php instead of using .getJSON to pull in from a different page.
Regards, Daniel