MATLAB COMPILER RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 151)

Mathematics

4-17

Functionality What Happens When

You Use This Functionality

Use This Instead Compatibility

Considerations

Passing mixed-

orientation vectors to

interpn:

interpn(x1,x2,...,xn,

V,

x1q,x2q,...,xnq)

Specifically, if one or

both of the following

are true:

• x1,x2,...,xn are

a combination of

row and column

vectors.

• x1q,x2q,...,xnq

are a combination

of row and column

vectors.

Still Runs Construct the full grid

with ndgrid first.

Alternatively, use

griddedInterpolant

if you have a large data

set.

Modify all instances

that pass mixed-

orientation vectors

to interpn. You can

modify your code in one

of two ways:

• Call ndgrid to

construct the full

grid first.

[X1,X2,...,Xn]

= ndgrid(x1,

x2, ..., xn);

[X1q,X2q,...,Xnq]

= ndgrid(x1q,

x2q, ..., xnq);

Vq =

interpn(X1,

X2, ..., Xn, V,

X1q, X2q, ...,

Xnq);

• Pass the vectors to

griddedInterpolant

inside a cell array.

F=

griddedInterpolant({x1,

x2, ..., xn},

V);

Vq= F({x1q,

x2q, ...,

xnq});

interp1(...,

'cubic')

Warns interp1(...,

'pchip')

Replace all instances

of interp1(...,

'cubic') with

interp1(...,

'pchip')

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