smoothn

SMOOTHN allows automatized and robust smoothing in arbitrary dimension w/wo missing values

http://www.biomecardio.com

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Note de l’éditeur : This file was selected as MATLAB Central Pick of the Week

Citation pour cette source

Damien Garcia (2026). smoothn (https://fr.mathworks.com/matlabcentral/fileexchange/25634-smoothn), MATLAB Central File Exchange. Extrait(e) le .

Garcia, Damien. “Robust Smoothing of Gridded Data in One and Higher Dimensions with Missing Values.” Computational Statistics & Data Analysis, vol. 54, no. 4, Elsevier BV, Apr. 2010, pp. 1167–78, doi:10.1016/j.csda.2009.09.020.

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Garcia, Damien. “A Fast All-in-One Method for Automated Post-Processing of PIV Data.” Experiments in Fluids, vol. 50, no. 5, Springer Science and Business Media LLC, Oct. 2010, pp. 1247–59, doi:10.1007/s00348-010-0985-y.

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Informations générales

Compatibilité avec les versions de MATLAB

  • Compatible avec les versions R2017a à R2020a

Plateformes compatibles

  • Windows
  • macOS
  • Linux
Version Publié le Notes de version Action
2.3.0

BSXFUN is no longer used (version thus must be >= R2017)

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2.2.1

verLessThan('matlab','9.2'); instead of verLessThan('matlab','9.1');

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2.2.0

- fixed bug in isstruct(varargin{end-1})
- no longer use BSXFUN w/ recent Matlab versions

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2.1.4

updated links

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2.1.3

updated links

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2.1.2

updated links

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2.1.1

.

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2.1.0

minor updates: 1) use narginchk, 2) two warning messages slightly modified

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2.0.0

minor update: 1) use narginchk, 2) some warning messages slightly modified

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1.37.0

I noticed a minor error in one comment

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1.36.0

.

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1.35.0

.

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1.34.0

Some modifications in the help text

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1.33.0

To simplify the syntax, the termination parameters are now in a structure (OPTIONS).

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1.32.0

Numerical adjustment in the leverage (for robust smoothing) in the case of unequal spacing increments.

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1.31.0

SMOOTHN, by default, assumes that the spacing increments are constant and equal in all the directions (i.e. dx = dy = dz = ...). Spacing increments that differ from one direction to the other can now be used (enter "help smoothn" for details).

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1.30.0

There was a non negligible bug in the new SMOOTHN function:
d = ndims(y) => d = ndims(y{1})
Many thanks to Gianni Pedrizzetti.

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1.28.0

Update of the help text

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1.27.0

A minor bug in the "Initial Guess" criterion has been removed

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1.26.0

A bug was present when dealing with complex numbers

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1.25.0

A small bug was present in the subfunction InitialGuess (Thank you Jonathan!)

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1.24.0

One bug has been fixed.

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1.23.0

SMOOTHN now works with multicomponent data (e.g. 3D vector fields) by using cell arrays. See the help text for details.

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1.22.0

DCTN and IDCTN are now included in SMOOTHN

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1.21.0

some typos

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1.20.0

3 optional weighting functions

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1.19.0

3 optional weighting functions

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1.12.0

minor modifications: mlint messages removed

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1.11.0

Some options have been removed/added

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1.10.0

fix a minor bug with the warning messages

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1.9.0

Minor modification in the relaxation factor

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1.8.0

A minor bug in error(nargchk(...))

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1.7.0

Gamma was undefined when "isauto" variable was false.

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1.6.0

The link to the manuscript has been modified.

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1.5.0

A bug has been reported with a smoothness parameter input. Thank you B.S.

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1.3.0

Very much faster now with weighted/missing data:
1) SOR
2) Initial guess from nearest-neighbor interpolation
3) GCV score is minimized every 2^k iterations (k = 0...)

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1.2.0

The "upsample" option has been removed

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1.1.0

An example has been added

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1.0.0

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