How do I plot differing length (X,Y) vectors vs time?

At each point in time I receive a list of (x,y) pairs and the number of data points ((x,y) pairs) varies with time. I want to do a scatter plot-style figure of the x,y pairs versus time. If it helps, the x,y pairs are integers over a finite range of possible values (range(x) is not = range(y)).

Answer 1

[Star Strider]

You probably have triplets (t,x,y). Use the scatter3 or plot3 functions. If you want to plot more than one (t,x,y) series on each plot, use the hold function.

[Dean Ranmar]

Thanks. No, I don't have triplets. I have thought of 'holding' the plot and re-calling scatter with each new set and assigning a new color each time - very similar to what you say. It's night here so I will try again in the morning. Thanks, again. (Scatter3 doesn't seem to apply because I don't have triplets of data.)

[Star Strider]

My pleasure.

If you want to plot as a function of time, one of your data vectors must be the time the data were acquired. If you don’t capture it directly, you can make a reasonable approximation if you sample it at regular intervals and know the approximate sampling time difference.

[Dean Ranmar]

Thanks again. Doing as you say and changing the color for each sample vector worked. I will post my/your solution in a couple of days in case anyone is interested. It's just a few lines of code and it yields very nice-looking plots.

[Star Strider]

As always, my pleasure.

I’m interested! I’d like to see your code and the plot it produced.