Plotting a function with polyfit and a for loop

I need to use polyfit and a for loop to create a plot in Matlab. However, here's the catch: The values that need to be graphed need to be taken out from an inputted matrix. For example: the matrix is: [1 2 3; 4 5 6; 7 8 9; 10 11 12]. But I only need to graph the first two rows as such: the first row are the x values and the second row are the y values. And then create another graph with the third row being the x values, and the fourth row being the y values. But this also has to work for an unlimited number of inputs or rows. Any help is appreciated!

Answer 1

[the cyclist]

Here is one way

M = [1 2 3; 4 5 6; 7 8 9; 10 11 12];

nrows = size(M,1);

for nr = 1:2:nrows
    figure
    x = M(nr,  :);
    y = M(nr+1,:);
    plot(x,y)
end

[Ryan]

Thanks! Worked great. All i had to add was a polyfit function and then plot that.

[the cyclist]

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