
Re: griddedInterpolant with three four dimensional arrays
Posted:
Apr 10, 2013 2:24 PM


"Steven_Lord" <slord@mathworks.com> wrote in message <kk46sj$am9$1@newscl01ah.mathworks.com>... > > > "Jonathan W Smith" <jwsmith9@gmail.com> wrote in message > news:kk43fn$t7s$1@newscl01ah.mathworks.com... > > Hello > > > > The p here stands for pressure. > > Array p_1 has dimension has southnorth, westeast, vertical, and time > > dimensions. > > > > p_2 has the same dimensions and is the same size as p_2 but has a > > different set of pressure data. > > I want to find the pressure levels of p_1 in the p_2 array because I have > > another array that contains ozone (I'll call this array o3). The ozone > > data corresponds with p_1. > > What specifically are the SIZEs of p_1, p_2, and o3? > > > I tried the following, > > > > new_p = griddedInterpolant(p_2, p_1, o3); > > Okay, that will work if p_2, p_1, and o3 are matrices of the same size. If > p_2 and p_1 are vectors and o3 is a matrix the same size as the matrices you > receive as output from an NDGRID call with p_2 and p_1 as input then you > need to call griddedInterpolant differently. > > new_p = griddedInterpolant({p_2, p_1}, o3); > > Compare: > > oneten = 1:10; > [X,Y] = ndgrid(oneten, oneten); > V = X.^2 + Y.^2; > F = griddedInterpolant(X,Y,V,'cubic'); > F2 = griddedInterpolant({oneten, oneten},V,'cubic'); > > See the third, fourth, and fifth items under Input Arguments on the page to > which you linked. > >  > Steve Lord > slord@mathworks.com > To contact Technical Support use the Contact Us link on > http://www.mathworks.com
Steve: Thanks for your response.
Each array is 41, 71, 8 (each array the same size). I should also clarify that each array is a 3dimensional array and not 4.
However when I try, new_p = griddedInterpolant(p_2, p_1, o3);
I get this error: Error using griddedInterpolant The nubmer of input coordinate arrays does not equal the number of dimensions (NDIMS) of these arrays.
What am I missing? Jonathan

