plot unequal length vectors

I have a vector X that I want to use for x-axis. Then I have a matrix Y that I want to use for y-axis unequal length. I want to koow how I can plot(X,Y)? X(size)=1x9901 Y(size)= 2x160000

Answer 1

[dpb]

All you can do there is create some mapping of an X value for each Y; it makes no sense otherwise other than simply by ordinal position ignoring X entirely. Sorry, wish I had better news, but sometimes one simply has insufficient information.

ADDENDUM

Knowing just what the relative sizes are, specifically, doesn't change the basic problem outlined before. You've got to have some reason to associate a given X value with one from Y. The most obvious would be

plot(X.',Y(:,length(X)).')

which uses the first N values of Y to go with X. Or, if the Y observations are somehow known to stretch over the extent of X but were generated on a different sampling rate, you can either interpolate X or decimate Y to make them commensurate in size. The former could be something like

Xi=interp1(1:length(X),X,linspace(1,length(X),length(Y)));

which will return a linear interpolation of the present X values to the number of elements in Y retaining the approximate shape of the X vector with index but lengthening it to have the same number of elements as Y.

If'en you have the Signal Processing Toolbox, there's also resample which will resample up or down in ratio of integers to go either way...

Answer 2

[kokomy]

How I can create some mapping of an X value for each Y in matlab

[dpb]

Any way you wish...you've got to have some idea of what X represents in your case and how do the Y values relate. We can't answer that; we've no klew even as to what they stand for, what more where the values came from...