How so I plot functions or lines on top of a scatter plot?

[dead...@gmail.com]

Hi, I need to do something really simple but I haven't found any examples as yet.

All I need to do is plot three straight lines on a scatter plot. Two of which are simply y=some_constant and the third being y=b0+b1x. I may want to add a couple more lines at x=some_constant.

I can make the lines in a separate graph by creating a line graph and plotting the endpoints (this would not work for vertical lines, however). I don't know how to plot them all on one graph without calculating Y for every X in the existing scatter plot. 

Any help would be appreciated. Thanks!

[Daniel LaLiberte]

Scatter points can be connected by lines.  I suggest that you just add a few more series (more columns) where you compute the data from your functions, and then for these series, specify the series type as 'line'.    The more complete documentation on the 'series' option can be found under the ComboChart page:  https://developers.google.com/chart/interactive/docs/gallery/combochart#configuration-options

Hope that helps.

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Daniel LaLiberte

dlaliberte@Google.com   5CC, Cambridge MA

[dead...@gmail.com]

Yeah, thanks. It kinda works for plotting my Y-limits and regression but still no X-limit solution :)

On Thursday, May 26, 2016 at 2:41:46 PM UTC-7, Daniel LaLiberte wrote:

Scatter points can be connected by lines.  I suggest that you just add a few more series (more columns) where you compute the data from your functions, and then for these series, specify the series type as 'line'.    The more complete documentation on the 'series' option can be found under the ComboChart page:  https://developers.google.com/chart/interactive/docs/gallery/combochart#configuration-options

Hope that helps.

On Thu, May 26, 2016 at 5:01 PM, <dead...@gmail.com> wrote:

Hi, I need to do something really simple but I haven't found any examples as yet.

All I need to do is plot three straight lines on a scatter plot. Two of which are simply y=some_constant and the third being y=b0+b1x. I may want to add a couple more lines at x=some_constant.

I can make the lines in a separate graph by creating a line graph and plotting the endpoints (this would not work for vertical lines, however). I don't know how to plot them all on one graph without calculating Y for every X in the existing scatter plot. 

Any help would be appreciated. Thanks!

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Daniel LaLiberte

dlali...@Google.com   5CC, Cambridge MA