Make unequally spaced data x,y equally spaced

Hi all,

I have this issue: I have x and y data where x that is unequally spaced, for example:

x=[99.5,100,100.5,101,104,106,108,110,112,116,120,124,128] and y=[does not matter]

Is there a transformation I can use to have x equally spaced with the smallest step (0.5 in this case) and y being smoothed (monotonically increasing or decreasing) in between the newly added points?

Thanks

Answer 1

[Guillaume]

newx = x(1):min(diff(x)):x(end);
newy = interp1(x, y, newx);

[Eugenio Daviso]

Thank you!

Answer 2

[Tamas Kis]

Function that does this + allows you to choose spacing in x:

https://www.mathworks.com/matlabcentral/fileexchange/95638-space-data-equally-in-one-variable-space_data_equally