Answered

My program isn't plotting anything

All of your x are the same, and all of your y are the same. You are drawing a line from a point to itself over and over again. T...

My program isn't plotting anything

All of your x are the same, and all of your y are the same. You are drawing a line from a point to itself over and over again. T...

6 hours ago | 0

Answered

Genetic algorithm plot diagram display

The *variable* that you create that has the same name as your *function*, is not used after it is assigned to, so the options yo...

Genetic algorithm plot diagram display

The *variable* that you create that has the same name as your *function*, is not used after it is assigned to, so the options yo...

10 hours ago | 0

Answered

How to Plot A 3D Ring of any given shape?

Create a reference set of vertices centered around 0, 0, and a description of faces joining them. I suggest using something comp...

How to Plot A 3D Ring of any given shape?

Create a reference set of vertices centered around 0, 0, and a description of faces joining them. I suggest using something comp...

12 hours ago | 0

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Answered

How to make group of ones more systematic approach?

Before the loop, struct2cell(Ribboned_100) . Then look at the fieldnames() of Ribboned_100, and match those against the names fr...

How to make group of ones more systematic approach?

Before the loop, struct2cell(Ribboned_100) . Then look at the fieldnames() of Ribboned_100, and match those against the names fr...

14 hours ago | 1

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Answered

Visualizing 3 dimensional array

Some of the basic ways to graph 4D data (3 independent variables plus one dependent variables) are: slice() isosurface() volu...

Visualizing 3 dimensional array

Some of the basic ways to graph 4D data (3 independent variables plus one dependent variables) are: slice() isosurface() volu...

15 hours ago | 0

Answered

How to color an image according to orientation of objects?

When you regionprops(), also ask for PixelIdxList . Now, create a matrix orient = zeros(size(BW)); And loop through the stru...

How to color an image according to orientation of objects?

When you regionprops(), also ask for PixelIdxList . Now, create a matrix orient = zeros(size(BW)); And loop through the stru...

15 hours ago | 1

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Answered

Unable to find explicit solution

vpasolve(k==0, 0.5) The starting guess can be anything from about 1e-3 upwards. There are a minimum of 3 different roots of th...

Unable to find explicit solution

vpasolve(k==0, 0.5) The starting guess can be anything from about 1e-3 upwards. There are a minimum of 3 different roots of th...

16 hours ago | 0

Answered

Plotting piecewise, data from matrices/vectors

To go straight down, you need to duplicate the x coordinate with the two different y values. stairs() automatically does the co...

Plotting piecewise, data from matrices/vectors

To go straight down, you need to duplicate the x coordinate with the two different y values. stairs() automatically does the co...

16 hours ago | 1

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Answered

strjoin, string, remove a single space, while combining variables.

Join one fewer item in Y, and strcat() or + it on to the end. If you absolutely must use only strjoin, then join one fewer item...

strjoin, string, remove a single space, while combining variables.

Join one fewer item in Y, and strcat() or + it on to the end. If you absolutely must use only strjoin, then join one fewer item...

16 hours ago | 0

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Answered

How can i display image from array element of cell??

for k=1:numel(fileNm) This = fileNm{k} ; if isempty(This) ; continue ; end imshow(This) ; pause(3); ...

How can i display image from array element of cell??

for k=1:numel(fileNm) This = fileNm{k} ; if isempty(This) ; continue ; end imshow(This) ; pause(3); ...

1 day ago | 0

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Answered

How to get Matlab to read this in a .m file to another .m file

Replace fid = fopen('trapdata.m', 'r'); S = fscanf(fid,'%d') fclose(fid) with [f, a, b, n, N] = trapdata(); You do not use...

How to get Matlab to read this in a .m file to another .m file

Replace fid = fopen('trapdata.m', 'r'); S = fscanf(fid,'%d') fclose(fid) with [f, a, b, n, N] = trapdata(); You do not use...

1 day ago | 0

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Answered

How to remove particular rows from a matrix?

[found, idx] = ismember(y, A, 'rows'); A(idx(found). :) = []; %delete one copy of the found ones

How to remove particular rows from a matrix?

[found, idx] = ismember(y, A, 'rows'); A(idx(found). :) = []; %delete one copy of the found ones

1 day ago | 0

Answered

How do I import a .itp file from molecular dynamics simulation

>> celldisp(textscan('; qtot', '%8s')) ans{1}{1} = ; ans{1}{2} = qtot When you use %s without a width, scann...

How do I import a .itp file from molecular dynamics simulation

>> celldisp(textscan('; qtot', '%8s')) ans{1}{1} = ; ans{1}{2} = qtot When you use %s without a width, scann...

1 day ago | 0

Answered

Generate a 32-bit binary stream

sum(randi([0,1],1,32).*2.^-(0:31)) Or randi([0,2^32-1])/2^32 Or you can use rnd() or related to tell rand to use th...

Generate a 32-bit binary stream

sum(randi([0,1],1,32).*2.^-(0:31)) Or randi([0,2^32-1])/2^32 Or you can use rnd() or related to tell rand to use th...

1 day ago | 0

Answered

How do I find the location of the max value of a nd matrix efficiently?

[L{1:ndims(X)}] = ind2sub(size(X), max(X, [], 'all')) ; out = cell2mat(L); However if you want all the duplicates to sho...

How do I find the location of the max value of a nd matrix efficiently?

[L{1:ndims(X)}] = ind2sub(size(X), max(X, [], 'all')) ; out = cell2mat(L); However if you want all the duplicates to sho...

1 day ago | 0

Answered

Automated process to save outputs into various MAT files

char(datetime('now', 'format', FORMAT_YOU_WANT)) strcat that with the base file name, fullfile() the directory into place, ...

Automated process to save outputs into various MAT files

char(datetime('now', 'format', FORMAT_YOU_WANT)) strcat that with the base file name, fullfile() the directory into place, ...

1 day ago | 0

Answered

I am getting this error: Error using * MTIMES (*) is not fully supported for integer classes. At least one argument must be scalar. Error in RSA (line 4) n =p*q;

somehow you are entering integer data-type arrays in response the prompts for p and q. For example you might be naming variables...

I am getting this error: Error using * MTIMES (*) is not fully supported for integer classes. At least one argument must be scalar. Error in RSA (line 4) n =p*q;

somehow you are entering integer data-type arrays in response the prompts for p and q. For example you might be naming variables...

1 day ago | 0

Answered

why xlswrite writes each letter of the string into each cell of excel?

You are probably passing a character vector, which is technically an array. Passing a cell array of character vectors will wo...

why xlswrite writes each letter of the string into each cell of excel?

You are probably passing a character vector, which is technically an array. Passing a cell array of character vectors will wo...

1 day ago | 1

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Answered

R2015a plot problem with ticklabel definition

You only ask for 5 ticks in your linspace, with labels derived from y2 not from what you linspace. Your first 5 y2 values are al...

R2015a plot problem with ticklabel definition

You only ask for 5 ticks in your linspace, with labels derived from y2 not from what you linspace. Your first 5 y2 values are al...

1 day ago | 0

Answered

Matrix index is out of range for deletion and I cant figure it out

Suppose you delete row 4. What was in row 5 "falls down" to row 4,what was in 6 falls to 5, and so on. If you had a request to d...

Matrix index is out of range for deletion and I cant figure it out

Suppose you delete row 4. What was in row 5 "falls down" to row 4,what was in 6 falls to 5, and so on. If you had a request to d...

2 days ago | 0

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Answered

I cannot see the plotted ecg signal.

When you load() a mat and assign to a variable the result is a struct with one field for every variable name loaded. You need to...

I cannot see the plotted ecg signal.

When you load() a mat and assign to a variable the result is a struct with one field for every variable name loaded. You need to...

2 days ago | 0

Answered

Contour plot on top of surface plot

Although it is possible to hack the properties of contour to change where the z values appear, it is typically much easier to cr...

Contour plot on top of surface plot

Although it is possible to hack the properties of contour to change where the z values appear, it is typically much easier to cr...

2 days ago | 0

Answered

How to Read and plot CSV file and delete infinity values from CSV file

https://www.mathworks.com/help/matlab/ref/rmmissing.html can be used since R2016b. That is, you use readtable() and let the ??? ...

How to Read and plot CSV file and delete infinity values from CSV file

https://www.mathworks.com/help/matlab/ref/rmmissing.html can be used since R2016b. That is, you use readtable() and let the ??? ...

2 days ago | 0

Answered

how to reduse the size of an array for meshgrid

N = 100; F = scatteredInterpolant(x, y, z); xvals = min(x):max(x); yvals = linspace(min(y), max(y), N); [X,Y] = meshgrid(xva...

how to reduse the size of an array for meshgrid

N = 100; F = scatteredInterpolant(x, y, z); xvals = min(x):max(x); yvals = linspace(min(y), max(y), N); [X,Y] = meshgrid(xva...

2 days ago | 2

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Answered

Undefined function 'cos' for input arguments of type 'tf'.

An s or z generated by tf('s') or tf('z') is not a symbolic variable but laplace() and ilaplace() can only be used with Symbolic...

Undefined function 'cos' for input arguments of type 'tf'.

An s or z generated by tf('s') or tf('z') is not a symbolic variable but laplace() and ilaplace() can only be used with Symbolic...

3 days ago | 1

Answered

How to create a function using the results of the other function (using handle)?

Verror = @(n) sum(Vms_mesh(Vms(n))- AE_MS_ex ); %AE_MS_ex is experimental vector with size[1*100]

How to create a function using the results of the other function (using handle)?

Verror = @(n) sum(Vms_mesh(Vms(n))- AE_MS_ex ); %AE_MS_ex is experimental vector with size[1*100]

3 days ago | 0

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Answered

Why can't a variable holding an equation be used to make a function handle?

Use matlabFunction()

Why can't a variable holding an equation be used to make a function handle?

Use matlabFunction()

3 days ago | 0

Answered

Struggling with line()

The first parameter is a list of x coordinates. The second parameter is a list of y coordinates. The parameters are *not* sou...

Struggling with line()

The first parameter is a list of x coordinates. The second parameter is a list of y coordinates. The parameters are *not* sou...

3 days ago | 1

| accepted

Answered

Create macOS app from app designer on Microsoft Window.

No it is not supported. Hypothetically you install enough of the Linux subsystem and FSF gcc related software to cross compile ...

Create macOS app from app designer on Microsoft Window.

No it is not supported. Hypothetically you install enough of the Linux subsystem and FSF gcc related software to cross compile ...

3 days ago | 1

| accepted

Answered

How to group individual plotted lines into one legend item

You cannot do what you want to do. You have two choicesb 1. record the handles returned by the graphic operations. Pass on...

How to group individual plotted lines into one legend item

You cannot do what you want to do. You have two choicesb 1. record the handles returned by the graphic operations. Pass on...

3 days ago | 0

| accepted