interpln
interpln — linear interpolation
Calling sequence
[y]=interpln(xyd,x)
Parameters
| xyd | : 2 row matrix (xy coordinates of points) |
| x | : vector (abscissae) |
| y | : vector (y-axis values) |
Description
given xyd a set of points in the xy-plane which increasing abscissae and x a set of abscissae, this function computes y the corresponding
y-axis values by linear interpolation.
Examples
x=[1 10 20 30 40];
y=[1 30 -10 20 40];
plot2d(x',y',[-3],"011"," ",[-10,-40,50,50]);
yi=interpln([x;y],-4:45);
plot2d((-4:45)',yi',[3],"000");
See also
splin, interp, smooth
