1-D interpolation along specified dimension

8 visualizaciones (últimos 30 días)
Giorgio Trumpy
Giorgio Trumpy el 10 de Feb. de 2017
Comentada: Serge el 14 de Abr. de 2022
Hello, I have a tall 2-D matrix 6037500x44. I want perform an interpolation of all the 6037500 rows, using the 44 sample points and 301 query points. It is basically a 1-D interpolation along the second dimension. A for-loop row-by-row lasts forever. Can anybody suggest a more efficient way? Thanks!

Respuesta aceptada

dpb
dpb el 10 de Feb. de 2017
Not sure who's the independent x value but seems like the vectorized form should work
xout=interp1(x,data.',xq);
where x is the independent variable range commensurate with the range of the data over the 44 columns consistent with xq, the 301-length interpolating points.
  2 comentarios
Giorgio Trumpy
Giorgio Trumpy el 13 de Feb. de 2017
This is exactly what I was looking for. Thanks a lot, Giorgio
Serge
Serge el 14 de Abr. de 2022
What if its 3rd or higher dimentions? Is there ay way to avoid using permute, since its a bit ugly.

Iniciar sesión para comentar.

Más respuestas (0)

Categorías

Más información sobre Interpolation en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by