Answered

Error using odearguments (line 113) Inputs must be floats, namely single or double.

You need to use matlabFunction() to turn your symbolic expressions into numeric code. Be sure to use the 'vars' option to contro...

Error using odearguments (line 113) Inputs must be floats, namely single or double.

You need to use matlabFunction() to turn your symbolic expressions into numeric code. Be sure to use the 'vars' option to contro...

3 dagar ago | 0

Answered

Does not properly read csv file

readcell() instead of readtable(). Your file mixes data types.

Does not properly read csv file

readcell() instead of readtable(). Your file mixes data types.

3 dagar ago | 0

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Answered

Galois field to binary matrix conversion (BCH encoding)

NC = noisycode.x; That will be uint32 with min 0 and max 0, so you can logical() it or double() it or uint8() it as appropriate...

Galois field to binary matrix conversion (BCH encoding)

NC = noisycode.x; That will be uint32 with min 0 and max 0, so you can logical() it or double() it or uint8() it as appropriate...

3 dagar ago | 0

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Answered

How to add constraints to simulannealbnd minimization

You cannot add constraints directly. However you can set AnnealingFcn to the handle of a function that only generates points tha...

How to add constraints to simulannealbnd minimization

You cannot add constraints directly. However you can set AnnealingFcn to the handle of a function that only generates points tha...

3 dagar ago | 1

Answered

Plotting a non linear equation.

format long g t_min = .3, t_max = .8 syms theta_opt m real a = sin(theta_opt).^2; b = (cos(theta_opt) - sin(theta_opt)...

Plotting a non linear equation.

format long g t_min = .3, t_max = .8 syms theta_opt m real a = sin(theta_opt).^2; b = (cos(theta_opt) - sin(theta_opt)...

3 dagar ago | 1

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Answered

Input #2 expected to be a cell array, was struct instead.

You need arrayfun() instead of cellfun() for that purpose. This assumes that in time Code2Model will be a non-scalar struct ar...

Input #2 expected to be a cell array, was struct instead.

You need arrayfun() instead of cellfun() for that purpose. This assumes that in time Code2Model will be a non-scalar struct ar...

3 dagar ago | 0

Answered

How to get all possible combinations of three independent data sets?

A = [A_x A_y]; B = [B_x B_y]; C = [C_x C_y]; ABC = [A;B;C]; D= [D_x D_y]; E = [E_x E_y]; F = [F_x F_y]; DEF = [D;E;F]...

How to get all possible combinations of three independent data sets?

A = [A_x A_y]; B = [B_x B_y]; C = [C_x C_y]; ABC = [A;B;C]; D= [D_x D_y]; E = [E_x E_y]; F = [F_x F_y]; DEF = [D;E;F]...

3 dagar ago | 2

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Answered

guesses of parameters in fmincon do not satisfy the constraints in nonlcon

Solvers can violate bounds constraints with some options: https://www.mathworks.com/help/optim/ug/iterations-can-violate-constr...

guesses of parameters in fmincon do not satisfy the constraints in nonlcon

Solvers can violate bounds constraints with some options: https://www.mathworks.com/help/optim/ug/iterations-can-violate-constr...

3 dagar ago | 0

Answered

Find the index range of ones/trues?

test_vector = [0,0,1,0,0,1,1,0,1,1,1,0,1,1,1,1]; starts = strfind([0 test_vector], [0 1]); stops = strfind([test_vector 0], [1...

Find the index range of ones/trues?

test_vector = [0,0,1,0,0,1,1,0,1,1,1,0,1,1,1,1]; starts = strfind([0 test_vector], [0 1]); stops = strfind([test_vector 0], [1...

3 dagar ago | 0

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Answered

Improving speed of readtable

Where all of the time is spent on the TreatAsEmpty command (because of having many zero entries?) No, that is not what is happe...

Improving speed of readtable

Where all of the time is spent on the TreatAsEmpty command (because of having many zero entries?) No, that is not what is happe...

3 dagar ago | 0

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Answered

Device number can that used with one license

Home and Student licenses: one device only (Individual) Academic licenses: two devices activated (Individual) Standard (Commer...

Device number can that used with one license

Home and Student licenses: one device only (Individual) Academic licenses: two devices activated (Individual) Standard (Commer...

3 dagar ago | 0

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Answered

Fzero function error in matlab

x = fzero(@(x) (707.34/(x-x^2)*(1+0.1*(10.589*(1-x)/x).^0.75)-(x-x^2)*9778.608 , 0.2) 1 2 1 2 3 2 3 4 ...

Fzero function error in matlab

x = fzero(@(x) (707.34/(x-x^2)*(1+0.1*(10.589*(1-x)/x).^0.75)-(x-x^2)*9778.608 , 0.2) 1 2 1 2 3 2 3 4 ...

4 dagar ago | 0

Answered

How do I find unknown parameter from an equation?

eqn = @(c) z - a.*b./(c.*d); c = fsolve(eqn, GUESS) This assumes that the equation is complex enough that you cannot just me...

How do I find unknown parameter from an equation?

eqn = @(c) z - a.*b./(c.*d); c = fsolve(eqn, GUESS) This assumes that the equation is complex enough that you cannot just me...

4 dagar ago | 0

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Answered

Issues with audiorecorder function in Matlab online R2020a?

As mentioned by @Eddy Armas At least up to R2021a, MATLAB Online does not support audio input. MATLAB Online does support som...

Issues with audiorecorder function in Matlab online R2020a?

As mentioned by @Eddy Armas At least up to R2021a, MATLAB Online does not support audio input. MATLAB Online does support som...

4 dagar ago | 0

Answered

When combining multiple photos, I want to have one matrix that shows only the highest value at each pixel's place.

Start with the first image, and copy it to the proposed output. For each additional image, figure out how it overlaps the curre...

When combining multiple photos, I want to have one matrix that shows only the highest value at each pixel's place.

Start with the first image, and copy it to the proposed output. For each additional image, figure out how it overlaps the curre...

4 dagar ago | 0

Answered

matlabFunction: Index exceeds the number of array elements for Matlab R2021a

matlabFunction(C, 'vars', {q, qdot, alpha, l, rho}, 'file', strcat(dpath,'/C_fun'), 'Optimize', true); Index exceeds the number...

matlabFunction: Index exceeds the number of array elements for Matlab R2021a

matlabFunction(C, 'vars', {q, qdot, alpha, l, rho}, 'file', strcat(dpath,'/C_fun'), 'Optimize', true); Index exceeds the number...

4 dagar ago | 0

Answered

How to make multiple execution of a code by loop ?

Replace x=array2table(x) y=array2table(y) TABLE=[A B x y]; TABLE.Properties.VariableNames(1:4) = {'A','B','x','y'}; with ...

How to make multiple execution of a code by loop ?

Replace x=array2table(x) y=array2table(y) TABLE=[A B x y]; TABLE.Properties.VariableNames(1:4) = {'A','B','x','y'}; with ...

4 dagar ago | 0

Answered

How can I covert serious of grey scale images to jet images

in_ext = '.png'; out_ext = '.png'; projectdir = 'path/to/files'; %can be '.' outdir = 'path/to/store/output'; %must be dif...

How can I covert serious of grey scale images to jet images

in_ext = '.png'; out_ext = '.png'; projectdir = 'path/to/files'; %can be '.' outdir = 'path/to/store/output'; %must be dif...

4 dagar ago | 0

Answered

how to speed up code

If I read the code correctly, then numused = sum(track_length_DNS); mycell_tracks_index = mat2cell(index_tracks_matching(1:num...

how to speed up code

If I read the code correctly, then numused = sum(track_length_DNS); mycell_tracks_index = mat2cell(index_tracks_matching(1:num...

4 dagar ago | 0

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Answered

Reading a .dt2 file in MATLAB

https://www.mathworks.com/matlabcentral/fileexchange/25897-read-dted-elevation-data looks like it should support .dt2 files.

Reading a .dt2 file in MATLAB

https://www.mathworks.com/matlabcentral/fileexchange/25897-read-dted-elevation-data looks like it should support .dt2 files.

4 dagar ago | 0

Answered

Can you use matlab code within an Arduino sketch?

MATLAB code cannot be included in an arduino sketch. With current releases, you can target MATLAB code to be deployed to Raspb...

Can you use matlab code within an Arduino sketch?

MATLAB code cannot be included in an arduino sketch. With current releases, you can target MATLAB code to be deployed to Raspb...

4 dagar ago | 0

Answered

FSOLVE requires all values returned by functions to be of data type double.

syms a b c d e X=input('numb of carbon atoms in fuel'); Y=input('numb of hidrogen atoms in fuel'); Z=input('fuel to air ratio...

FSOLVE requires all values returned by functions to be of data type double.

syms a b c d e X=input('numb of carbon atoms in fuel'); Y=input('numb of hidrogen atoms in fuel'); Z=input('fuel to air ratio...

4 dagar ago | 0

Answered

How to break a while loop to another one?

while outer test outer stuff quit_middle = false; while middle test middle stuff while inner test i...

How to break a while loop to another one?

while outer test outer stuff quit_middle = false; while middle test middle stuff while inner test i...

4 dagar ago | 0

Answered

Exporting the output into a .txt file

You could evalc() the code, getting back a character vector, that you then wrote to a file. You could fopen() a file, and fpri...

Exporting the output into a .txt file

You could evalc() the code, getting back a character vector, that you then wrote to a file. You could fopen() a file, and fpri...

4 dagar ago | 0

Question

Identify Simulink blocks by shape and ports?

Is there a facility to help people figure out what block shapes are which Simulink / Simscape blocks? I see people posting Simu...

4 dagar ago | 0 answers | 0

Answered

I'm having problems copying a 4-D array

https://www.mathworks.com/help/releases/R2017a/matlab/ref/imread.html?searchHighlight=imread&s_tid=doc_srchtitle#inputarg_idx T...

I'm having problems copying a 4-D array

https://www.mathworks.com/help/releases/R2017a/matlab/ref/imread.html?searchHighlight=imread&s_tid=doc_srchtitle#inputarg_idx T...

5 dagar ago | 1

Answered

How can I best receive data from a web hook into Matlab?

The URL for the webhook could be connected to a webserver on your host that accepted the request (such as with PHP or ASP), cons...

How can I best receive data from a web hook into Matlab?

The URL for the webhook could be connected to a webserver on your host that accepted the request (such as with PHP or ASP), cons...

5 dagar ago | 0

| accepted

Answered

How to deal with table

Removing entries that have empty exData: mask = cellfun(@isempty, newT.exData); newT(mask,:) = []; If I understand correctly,...

How to deal with table

Removing entries that have empty exData: mask = cellfun(@isempty, newT.exData); newT(mask,:) = []; If I understand correctly,...

5 dagar ago | 0

| accepted

Answered

While loop for sum

n = 1; while true do something n = n + 1; if n > N; break; end end or n = 0; while true n = n + 1; if n > ...

While loop for sum

n = 1; while true do something n = n + 1; if n > N; break; end end or n = 0; while true n = n + 1; if n > ...

5 dagar ago | 0

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Answered

fixed points in the plots

syms A B G A, B, and G are created as scalar symbols f = matlabFunction(sum1m2, 'vars', [A, B, G]); g = matlabFunction(sum3...

fixed points in the plots

syms A B G A, B, and G are created as scalar symbols f = matlabFunction(sum1m2, 'vars', [A, B, G]); g = matlabFunction(sum3...

5 dagar ago | 0