Log-log chart axis label format as 10 to exponent

[joshuasosa]

Hello, I’m creating a log-log chart and would like both the x and y axis to have labels displayed as 10 to some power. See the right image below which shows a sample log plot. As can be seen, it can go negative and positive. How do I replicate axis labels like that?

[joshuasosa]

This solution seems to work ok: https://canvasjs.com/forums/topic/logarithmic-function/

If there’s a better way to do it nowadays, I’d be glad to see.

Thanks!

[Manoj Mohan]

@joshuasosa,

You can show axis labels in exponential form with the help of unicode characters as mentioned in this thread. Please take a look at this JSFiddle for an example.

—-
Manoj Mohan
Team CanvasJS

[joshuasosa]

I was having trouble with subscriptValue producing 10^0 for 0.1 in some cases when it should be 10^-1.

subscriptValue using Math.log10(value) fixes the issue for me, instead of Math.ceil(Math.log(value)/Math.log(10))

[Manoj Mohan]

@joshuasosa,

Glad the you were able to figure it out based on your scenario :)

—-
Manoj Mohan
Team CanvasJS