interpolation using the Vandermonde matrix with order of 7 (x = x-axis, y= y-axis)

quality(x) = [0 0.5 0.6 0.667 0.692 0.714 0.778 0.813 0.889 1 1 1 1 1 1 1 1 1]

PAFC(y) = [11500 37500 15000 30000 14000 35000 84000 58000 19000 26500 11500 11500 15000 25000 15000 15000 25000 15000]

PAC(y) = [11500 22500 15000 15000 14000 15000 14000 14000 19000 26500 11500 11500 15000 25000 15000 15000 25000 15000]

FC(y) = [0 15000 0 15000 0 20000 70000 44000 20000 0 0 0 0 0 0 0 0 0]

[John D'Errico]

But what is your question?

[Jan]

Some of your X and Y values are equal. How do you want to handle this?

[Mohd]

quality(x) = [0 0.5 0.6 0.667 0.692 0.714 0.778 0.813 0.889 1];

PAFC(y) = [11500 37500 15000 30000 14000 35000 84000 58000 19000 26500];

the equal values have been omitted.

i need to plot the interpolation of these two parameters using the vandermonde matrix with order 7

thank you so much in advance guys

Answer 1

[Laura Proctor]

I'm not really sure what data you are trying to interpolate, but this example on Predicting the US Population may be a helpful starting place.

Answer 2

[Mohd]

thanks laura. the data that i'm going to interpolate is PAFC vs quality, PAC vs quality and FC vs quality using the vandermonde matrix...