Answered
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 ----

4 years ago | 0

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

4 years ago | 0

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Answered
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) ...

4 years ago | 0

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

4 years ago | 1

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fitting a funciton with minimax error
Consider using fminimax.

4 years ago | 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...

4 years ago | 0

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Answered
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.

4 years ago | 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 ;

4 years ago | 0

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

4 years ago | 1

Answered
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...

4 years ago | 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...

4 years ago | 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...

4 years ago | 0 answers | 1

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answers

Answered
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))

4 years ago | 0

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

4 years ago | 0

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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...

4 years ago | 1

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Answered
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,...

4 years ago | 0

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

4 years ago | 0

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

4 years ago | 1

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Answered
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; ...

4 years ago | 1

Answered
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 );

4 years ago | 1

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Answered
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_...

4 years ago | 0

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Answered
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...

4 years ago | 0

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

4 years ago | 0

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Answered
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...

4 years ago | 1

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Answered
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=...

4 years ago | 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" &&...

4 years ago | 0

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

4 years ago | 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; ...

4 years ago | 1

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

4 years ago | 0

Answered
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:...

4 years ago | 0

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