plot from two vectors not working "not enough arguments"

i have a 3D array called 'arr' which was created from parsing a text table i wnat to plot a single 2D cell from it. when i try to do the following i get an error "Error using plot Not enough input arguments."

why its happening?

Thanks

    phase=arr{1}{1};
amp=arr{1}{2};
plot(phase,amp);

[Adam]

If you put each statement on its own line you can step in with the debugger and see what the variables contain.

You may also have over-ridden the plot function. What does

which plot

show?

[fima v]

those variable have integers in them. first vector contains its a simple plot , why it says , not enough arguments.

-90 -87 -84 -81 -78 -75 -72 -69 -66 -63 -60 -57 -54 -51 -48

the second vector contains

-4.42360000000000 -4.89380000000000 -6.06030000000000 -6.97660000000000 -8.34980000000000 -8.95580000000000 -9.86160000000000 -11.4061000000000 -12.8650000000000 -14.1379000000000 -15.5264000000000 -17.2791000000000 -19.8537000000000 -24.0548000000000 -30.6594000000000

[Adam]

Then like I said, you may have over-ridden the plot function with one of your own.