In Google Sheets, I'm having some difficulty getting two curves on the same axis.

How do I get a set of axis with 2 sets of x,y values on it.

I looked at 1 plot with several lines with a common X axis but unique X and Y values... is this possible?

And I tried to go with the suggestion there and I have come up with

enter image description here

I find it a bit strange, 'cos the legend shows amp as blue and amp2 as red. But the graph only shows a red curve. And the values plotted are (t,amp). It doesn't have (t2,amp2).

I want it to show (t,amp), and also overlayed on that, (t2,amp2).

I have picked for series(which tells google sheets y axis I suppose), amp and amp2.

I then tried adding this into the "data range" box "A49:D58,C49:C54" but as you see below, it still only shows one graph.

enter image description here

  • While a image might be helpful, please bear in mind that the post size is a lot smaller that modern screens, so usually will be a better idea to reduce the window size to take screenshots, reduce the "white space", and sometimes split the screenshot in two or more images. Apr 2, 2022 at 16:47

1 Answer 1


To plot multiple series in a single line chart, there should be only one column for the horizontal axis. In order to achieve this you might have have to interpolate / extrapolate values for each series not having values for a horizontal axis values that other series have them.



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