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How do I replace missing data with other values?
isnan is the correct way to detect and replace nans. Rn=radi; Rn(isnan(radi))= ---- something else ----

presque 7 ans il y a | 0

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How can I register or rotate series of image in matlab
imregister or imregtform seems like a good choice.

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parallel computation for a for loop
parfor pi=1:NP*kkk Tempo1 = zeros( p(pi) ,1 ); Tempo1_M = zeros( p(pi) ,1); Tempo2 = zeros(q(pi) ...

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How to Hybrid two median filters
out = medfilt2(medfilt2(yourImage))

presque 7 ans il y a | 1

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fitting a funciton with minimax error
Consider using fminimax.

presque 7 ans il y a | 1

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Error using trainNetwork. Unable to read file.
I think it is expecting more traditional types of image files like .jpg,.png, etc.. I think for .mat you need to specify a speci...

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How to use a for-loop to find the onset (first element) of trials of zeros, ones and twos, in an array of sequences of zeros, ones and twos
No, we're not going to do your homework for you. Go away and leave us alone.

presque 7 ans il y a | 1

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Rotation of the circle (points)
Just add an increment to the th th = linspace(0,2*pi,10) + rotation_angle ;

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Multiply and shift ?
R = ifftshift(xcorr(x,'unbiased'))

presque 7 ans il y a | 1

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FFT Peak at Zero
Apply fftshift to your spectrum to see it with DC centered in the plot. x=csvread('230.csv',1,0); rollSpectrum=ffts...

presque 7 ans il y a | 2

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Solving compound linear optimization problem
I've never heard of a compound optimization problem but maybe this will help https://www.mathworks.com/discovery/multiobjective...

presque 7 ans il y a | 1

Question


Is this a bug in lsqcurvefit?
When I run this simple test of lsqcurvefit (this is R2018a), I get errors. opts=optimoptions(@lsqcurvefit,'SpecifyObjective...

presque 7 ans il y a | 1 réponse | 1

0

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invalid syntax at '=' . A '(' might be missing a closing ')'
if (f == 0) and same thing in this line if(~isinteger(NMAX) || NMAX == 0 || ischar(NMAX))

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How to save vectors with different lengths
One way is to use cell arrays C={1,[2,3],[4,5,6,7]}

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fitting 2 variable function to (x-1) form
My fit is completey messed up, and it looks nothing like the data. It shouldn't look like the r and eta data, because that's no...

presque 7 ans il y a | 1

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Image registration of two different imaging moralities
That sounds like a very unusual registration problem, but if you have a model that relates the CT image to the microscopy image,...

presque 7 ans il y a | 0

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How to preprocess this image.?
PI=I; PI(~CH_objects)=255; imshow(PI); title('Preprocessed Image');

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how to extract the first three elements present in each row of a matrix
B=A(:,1:3)

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max min optimization using inbuilt MATLAB function fminimax
The outside negative sign only matters if you care about calculating the optimal fval [x,fval] = fminimax(------) fval=-fval; ...

presque 7 ans il y a | 1

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Unable to perform assignment because the left and right sides have a different number of elements.
k(i) = (4/pi) * (1/(2*i+1)) * sin( ((2*i+1)* pi.* t(i))/T );

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Fit multiple sets of data with same function model to get optimal global parameter using lsqcurvefit
This might be what you mean - ExtraData.R=R; ExtraData.G=G; ExtraData.pks_locs1=pks_locs1; ExtraData.pks_locs2=pks_...

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Not Enough Input Arguments in fsolve
function myProblem options = optimset('display','off') x = fsolve(@fun,[2 3.5],options) X = x(1) Y = x(2) fun...

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My textbook gave me code that has an error I don't know how to fix
alt and flag must be scalars.

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Reducing a vector size when it is being updated in a loop
for h=5:-1:1 %code to load all script files if h==1 A = dlmread("Trial 1"); elseif h==2...

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How can I go back to the beginning of my program first line by a command?
keepGoing=true; while keepGoing answer=input('Do you wish to continue [yes/no]','s'); keepGoing=(answer=...

presque 7 ans il y a | 0

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Classdef get methods: allowing get indexing into an array of length either (1x1) or (Nx1).
You would need to overload subsref, e.g., methods function out=subsref(obj,S) if S(1).type=="." && S(1).subs{1}=="A" &&...

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(x²+y²+z²)dx-(2xy)dy-(2xz)dz=0
Easy. x=0; y=0; z=0;

presque 7 ans il y a | 1

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Help with fmincon function
First of all, let's fix your code. g = @(u) 30*u(1) + (20/2)*(u(2))^2 + (20/2)*(u(3))^2 + (10/2)*(u(4))^2 + (40/2)*(u(5))^2; ...

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Plot with linspace and for loop - what is wrong with this code?
plot(r,X,'o');

presque 7 ans il y a | 0

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Why dir function is creating additional files while creating a structure? how to ignore it?
Do a more specific search, like files = dir('folder/*.jpg'); Or, just throw the first 2 away files = dir('folder'); files(1:...

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