plot function give data error

I want to plot data that i have extracted from a figure using plot function but it gives error message "Not enough input arguments"

the data are x1 and y1

plot(x1,y1)

x1 = 

    [1x10 double]
    [1x10 double]
    [1x10 double]
    [1x10 double]

y1 = 

    [1x10 double]
    [1x10 double]
    [1x10 double]
    [1x10 double] 
>> 

Answer 1

[Star Strider]

They would appear to be cell arrays.

This will work:

figure
plot([x1{:}], [y1{:}])

however you will probably prefer this result:

figure
hold on
for k = 1:size(x1,1)
    plot(x1{k}, y1{k})
end
hold off
grid