How MATLAB move between discrete measurements

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ameen
ameen 2014-12-19
评论： Image Analyst 2014-12-22
Hi there
when we have discrete measurements of speed or temperature, based on what MATLAB draw a scatter curve between these points ?
Thanks in advance.

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Image Analyst
Image Analyst 2014-12-22
See my spline demo, attached, which will produce the plot below:
The red are the original data points, and the blue are the spline interpolated points. You can take the markers off the blue curve, and not plot the red curve, and plot the original data with big blue dots and it will look just like your curve.
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ameen
ameen 2014-12-22
Thank you for your kind reply and the very useful code
Image Analyst
Image Analyst 2014-12-22
You're welcome. You can thank people also by Voting for their answer or Accepting their answer.

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dpb
dpb 2014-12-19
By plot, scatter, etc., simply straight line interpolation between points.
Use cftool or one of the specific fitting methods to fit a functional form or could use interp1 and an interpolating option other than linear to do some other form.
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dpb
dpb 2014-12-21
Well, clearly it was something other than straight line -- but you still didn't say what specific function you used to create the plot. There are many possible choices; which you did, specifically, I have no idea unless you show/tell us what you used as I said in the very first response.
That looks like it probably was a smoothing spline, given the shape of the curve, however.
Again, how, specifically, did you create the plot in Matlab?

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