plotting 2 variable of different size length

Hi all, Am trying to plot 2 variable of different size length in matlab GUI using push button, but because the variables are of different length it will not work,is there a way i can make it to plot?

    d= pdist([x,y,z],'euclidean') ;  % value of my distance   
    dd= 1:10:d;            % interval and end 'd' value                                 
    FSL=-120;           %value of free space loss get from the GUI   
    DFSL= 1:10:FSL         %interval and end at FSL value

    plot(dd,DFSL)

The plot code did not work coming back with an error " Error using plot Vectors must be the same lengths"

Answer 1

[Joseph Cheng]

You should look at the help documentation for plot(), How you have it written is you are plotting dd versus DFSL. I do not know what your x axis is or if DFSL and dd have the same x axis (ie. d(1) and DFSL(1) should be in the same x axis point.

from the plot() documentation you need to specify the x and y values for your plot.

example:

plot(1:length(dd),dd,1:length(DFSL),DFSL)

[Kehinde Adeniji]

Thanks,do you know how to get the length of the variable please?

[Joseph Cheng]

with length()

Answer 2

[Star Strider]

I suggest using the linspace function.

dd = linspace(1, d);

and

DFSL = linspace(1, FSL);

This generates 100-element vectors between 1 and d for dd, and between 1 and FSL for DFSL. (You can change the number of elements for both with the third argument to linspace.)

I also note that you defined FSL = -120. Be careful with that, since it could also cause problems with the plot since you defined DFSL to begin at 1.