Rank: 92 based on 706 downloads (last 30 days) and 14 files submitted
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Frederic Moisy

E-mail
Company/University
University Paris Sud
Lat/Long
48.70661163330078, 2.176899909973145

Personal Profile:

Visit my Matlab page: http://www.fast.u-psud.fr/~moisy/ml

Professional Interests:
Fluid mechanics, Image processing

 

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Files Posted by Frederic View all
Updated   File Tags Downloads
(last 30 days)
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26 Mar 2014 Screenshot EzyFit 2.42 A free curve fitting toolbox for Matlab Author: Frederic Moisy approximation, interpolation, curve, fitting, nonlinear, fit 176 103
  • 4.82653
4.8 | 102 ratings
26 Jun 2013 Screenshot PIVMat 3.02 A PIV Post-processing and data analysis toolbox Author: Frederic Moisy data import, data export, piv, velocimetry, davis, lavision 99 26
  • 4.55556
4.6 | 9 ratings
30 Jan 2012 Screenshot UIMAGE - UIMAGESC Display image with non-linearly spaced axis. Author: Frederic Moisy specialized, plotting, uimagesc image uneven... 36 17
  • 4.90909
4.9 | 11 ratings
02 Jun 2010 FileSeries - Rename / renumber files, recursive directories Renaming and renumbering for series of files ; generalize the use of wildcards (*) for CD, LS ... Author: Frederic Moisy path, directories, files, recursive directory r..., recursive, rename 57 7
  • 4.5
4.5 | 4 ratings
30 Apr 2010 Dispersion relation for water waves Dispersion relation, and its inverse, for surface waves (eg, finding wavenumber from frequency). Author: Frederic Moisy physics, dispersion relation, water waves 33 0
Comments and Ratings by Frederic View all
Updated File Comments Rating
07 Nov 2012 EzyFit 2.42 A free curve fitting toolbox for Matlab Author: Frederic Moisy

Dear Razvan,
the definition of the coefficient R is given here: http://www.fast.u-psud.fr/ezyfit/html/ezfit.html

06 Jun 2012 PIVMat 3.02 A PIV Post-processing and data analysis toolbox Author: Frederic Moisy

Dear Maxwell,
This is because different matrix indexing conventions are used in Matlab and PIVMat.
This point is explained here:
http://www.fast.u-psud.fr/pivmat/html/pivmat_data.html
see the section "Matrix indexing"
I hope this helps,
F.

26 Apr 2012 EzyFit 2.42 A free curve fitting toolbox for Matlab Author: Frederic Moisy

To Nick:

Yes, the problem is fixed since July 2010.
See the function "remove_efmenu_fig.m".

-- The author

06 Mar 2012 EzyFit 2.42 A free curve fitting toolbox for Matlab Author: Frederic Moisy

Dear Joseph,
Thank you for your suggestion.
But please note that this issue has already been addressed: use the function remove_efmenu_fig (included in the toolbox since 2010) in order to remove the Ezyfit menu from a saved figure.
-- The author

31 Jan 2012 UIMAGE - UIMAGESC Display image with non-linearly spaced axis. Author: Frederic Moisy

Oooooooh... I must admit that Bjorn Gustavsson is totally right. This submission actually mimick to behavior of pcolor. Thank you for your remark, and sorry for this false good idea...
F.

Comments and Ratings on Frederic's Files View all
Updated File Comment by Comments Rating
21 Jul 2014 RMVAR Remove variables from MAT-File RMVAR is a simple program that removes specified variable(s) from a MAT-File Author: Frederic Moisy Simon, Leo

Thanks for this, most useful.

I modified the file slightly, so that if the variable you tried to remove isn't actually in the matfile, then the program reports this but doesn't crash:

error(nargchk(2,inf,nargin));
WHOS = whos('-file',filename);
removeThese = {};
for ii=1:numel(varargin);
if isempty(strmatch(strvcat(WHOS(:).name),varargin{ii}));
disp([ varargin{ii} ' isn''t saved in ' filename ]);
else
removeThese = [ removeThese , varargin{ii} ];
end;
end;
vars = rmfield(load(filename),removeThese);
save(filename,'-struct','vars');

09 Jul 2014 boxcount Fractal dimension using the 'box-counting' method for 1D, 2D and 3D sets Author: Frederic Moisy Mabuza, Phumzile

Hi, can I please ask how to get the boxcount or randcantor function, I am using 2014a student version and cannot find the functions. Where can Ii download from

please help!

05 Jun 2014 UIMAGE - UIMAGESC Display image with non-linearly spaced axis. Author: Frederic Moisy Raum, Matt

Output is different from imagesc for nominally identical inputs.

sz=21;
noise=1e-6;
x=linspace(0,1,sz)+noise*randn(1,sz);
y=linspace(0,1,sz)+noise*randn(1,sz);
z=randn(sz);
figure;
imagesc(x,y,z);hline(y,'-k');vline(x,'-k');
figure;
uimagesc(x,y,z);hline(y,'-k');vline(x,'-k');

I was able to correct this and speed up the code significantly by using the following replacement for the general (~evenx && ~eveny) case:

nx = round(1 + (x(end) - x(1))/dx);
nx = min(nx, nmax);
xe = linspace(x(1), x(end), nx);

ny = round(1 + (y(end) - y(1))/dy);
ny = min(ny, nmax);
ye = linspace(y(1), y(end), ny);

ce = interp2(x,y,c,col(xe),row(ye),'nearest');

The functions 'col' and 'row' just turn one dimensional vectors into column and row vectors, respectively. A similar loop eliminating modification made to the other two cases will presumably speed them up as well.

Thanks Frederic!

05 Jun 2014 PIVMat 3.02 A PIV Post-processing and data analysis toolbox Author: Frederic Moisy Marta

01 Mar 2014 UIMAGE - UIMAGESC Display image with non-linearly spaced axis. Author: Frederic Moisy Anders

perfect!

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