Answered

How to find area enclosed between two curves?

i don't think the code you include in your question content related to what you want. you have to vector, which are values of y...

How to find area enclosed between two curves?

i don't think the code you include in your question content related to what you want. you have to vector, which are values of y...

1 year ago | 0

Answered

How can I use images which have different size for CNN?

except some special cases, there is a limitation for forwarding different size arrays toward a CNN. after images pass the convol...

How can I use images which have different size for CNN?

except some special cases, there is a limitation for forwarding different size arrays toward a CNN. after images pass the convol...

1 year ago | 0

| accepted

Answered

Solve the partial differential equation using Crank-Nicolson method.

Hi. you forget to put index in x vector in line 70, in equation you calculate Ur. that's the error. Ur(i,j) = 0.5*erfc(0.5*(x(...

Solve the partial differential equation using Crank-Nicolson method.

Hi. you forget to put index in x vector in line 70, in equation you calculate Ur. that's the error. Ur(i,j) = 0.5*erfc(0.5*(x(...

1 year ago | 0

| accepted

Answered

Convert Python code (loop) to MATLAB

it depend on what class you want folds be. (an array, a cell , ... ) for example if all elements in list have same lenght, here...

Convert Python code (loop) to MATLAB

it depend on what class you want folds be. (an array, a cell , ... ) for example if all elements in list have same lenght, here...

1 year ago | 0

| accepted

Answered

Why is the eigenvalue a column of zeroes

for the system , is technically a solution. you should search for non-trivial solution. for this you should create null space ...

Why is the eigenvalue a column of zeroes

for the system , is technically a solution. you should search for non-trivial solution. for this you should create null space ...

1 year ago | 0

Answered

How to perform symbolic integration?

it doesn't seems your function has a clear close form primitive function. (or at least it is not easy for matlab symbolic toolbo...

How to perform symbolic integration?

it doesn't seems your function has a clear close form primitive function. (or at least it is not easy for matlab symbolic toolbo...

1 year ago | 0

| accepted

Answered

How to keep GUI interface on top？

after the line that you open a file selector (uigetimagefile for example), use this: figure(FIGURE); it will bring up your GUI...

How to keep GUI interface on top？

after the line that you open a file selector (uigetimagefile for example), use this: figure(FIGURE); it will bring up your GUI...

1 year ago | 0

| accepted

Answered

Extracting a section of data with conditions/limits

altitude = [0; 1; 2; 3; 4; 5]; time = ['08:05'; '08:06'; '08:07'; '08:08'; '08:09'; '08:10']; hours = str2num(time(:,1:2)); m...

Extracting a section of data with conditions/limits

altitude = [0; 1; 2; 3; 4; 5]; time = ['08:05'; '08:06'; '08:07'; '08:08'; '08:09'; '08:10']; hours = str2num(time(:,1:2)); m...

1 year ago | 0

| accepted

Answered

Neural Network: Custom Loss Function: Minimize Range/Amplitude

From 2021a version, Matlab allows you to define and use customize data, layer, training loop, network and in as you need loss fu...

Neural Network: Custom Loss Function: Minimize Range/Amplitude

From 2021a version, Matlab allows you to define and use customize data, layer, training loop, network and in as you need loss fu...

1 year ago | 1

| accepted

Answered

How to find the indices of similar arrays

The function unique return both unique array of input array and the indexes of original array in unique array. for example : A...

How to find the indices of similar arrays

The function unique return both unique array of input array and the indexes of original array in unique array. for example : A...

1 year ago | 0

Answered

how to make loop to save value in excel without overwrite with the previous value filled?

for problem you mentioned maybe use writematrix function instead, and use option 'WriteMode' = 'append'. writematrix(DATAR,file...

how to make loop to save value in excel without overwrite with the previous value filled?

for problem you mentioned maybe use writematrix function instead, and use option 'WriteMode' = 'append'. writematrix(DATAR,file...

1 year ago | 0

Answered

How to create a box label datastore?

you can easily create and edit a cell. then convert it to table. here is an example: boxes = cell(10,2); %number of images x 2...

How to create a box label datastore?

you can easily create and edit a cell. then convert it to table. here is an example: boxes = cell(10,2); %number of images x 2...

1 year ago | 2

| accepted

Answered

How can I plot three 2D functions in one 3D graph?

a simple way i thing is using plot3: plot3 function, plot a curve in 3D space. if you set all values of one component 0. the cu...

How can I plot three 2D functions in one 3D graph?

a simple way i thing is using plot3: plot3 function, plot a curve in 3D space. if you set all values of one component 0. the cu...

1 year ago | 2

| accepted

Answered

How can I fit a lower tail distribution for the lower 25% of the data?

Hi. here's a quick example: %X = zeros(1000,1); % Create data X = normrnd(2,1.5,1000,1); X_sort = sort(X); % sort data by t...

How can I fit a lower tail distribution for the lower 25% of the data?

Hi. here's a quick example: %X = zeros(1000,1); % Create data X = normrnd(2,1.5,1000,1); X_sort = sort(X); % sort data by t...

1 year ago | 0

| accepted

Answered

unable to optimise the following using linprog

HI. here's how you should do it: First i create a sample database for my self to use as parameters: (i use 100 points in 4D fea...

unable to optimise the following using linprog

HI. here's how you should do it: First i create a sample database for my self to use as parameters: (i use 100 points in 4D fea...

1 year ago | 1

| accepted

Answered

How can I create nested pie/doughnuts chart?

this might be useful: https://www.mathworks.com/matlabcentral/fileexchange/56833-donut but it's a lot simpler than charts in y...

How can I create nested pie/doughnuts chart?

this might be useful: https://www.mathworks.com/matlabcentral/fileexchange/56833-donut but it's a lot simpler than charts in y...

1 year ago | 2

| accepted

Answered

Error using plot Data must be numeric, datetime, duration or an array convertible to double.

f is a symbolic expression not a function or vector. you can create a function with this expression, then plot the value of func...

Error using plot Data must be numeric, datetime, duration or an array convertible to double.

f is a symbolic expression not a function or vector. you can create a function with this expression, then plot the value of func...

1 year ago | 1

| accepted

Answered

How can I detect a triangle in my image?

Hi. in case your problem is exactly what you attached. here is an easy solution i can provide: I = imread('image.jpeg'); %read ...

How can I detect a triangle in my image?

Hi. in case your problem is exactly what you attached. here is an easy solution i can provide: I = imread('image.jpeg'); %read ...

1 year ago | 0

Answered

How can I solve an Optimization problem?

you can use fmincon, this function minimize function in a constraint problem. but only constraint here is bounds of lambda. so o...

How can I solve an Optimization problem?

you can use fmincon, this function minimize function in a constraint problem. but only constraint here is bounds of lambda. so o...

1 year ago | 0

Answered

input layer and flatten mismatch

The Flatten layer support sequence input only. [1] As i understand from your network architechture you don't need Flatten Layer...

input layer and flatten mismatch

The Flatten layer support sequence input only. [1] As i understand from your network architechture you don't need Flatten Layer...

1 year ago | 0

| accepted

Answered

Optimize a function with a sum of series

Hi , you don't need necessarily symboilic functionality for this problem. here is a simple solution. (you can run it in single ....

Optimize a function with a sum of series

Hi , you don't need necessarily symboilic functionality for this problem. here is a simple solution. (you can run it in single ....

1 year ago | 0

| accepted

Answered

ResNet-50 training problem

this note is from official MATLAB documentation for trainingOptions , i think it's exactly what you're looking for. "When t...

ResNet-50 training problem

this note is from official MATLAB documentation for trainingOptions , i think it's exactly what you're looking for. "When t...

1 year ago | 0

| accepted

Answered

How to convert text file to string?

use fscan or fread F = fopen('Untitled.txt'); Text = fscanf(F,'%c')

How to convert text file to string?

use fscan or fread F = fopen('Untitled.txt'); Text = fscanf(F,'%c')

1 year ago | 1

| accepted

Answered

Solving a nonlinear equation

the eqn as you defined is a vector-value multi-variable function. fzero takes a scalar-value single-variable function. so maybe...

Solving a nonlinear equation

the eqn as you defined is a vector-value multi-variable function. fzero takes a scalar-value single-variable function. so maybe...

1 year ago | 0

| accepted

Answered

if statement is not working

the condition theta >= 41.19 & theta <= 90 is a logical vector with 20 values. if you want to calculate such a formula for those...

if statement is not working

the condition theta >= 41.19 & theta <= 90 is a logical vector with 20 values. if you want to calculate such a formula for those...

1 year ago | 0

Answered

Interp1 returns NaN for all values

According to documentation of interp1. the function returns NaN for points outside the domain. so check V and See if it's point ...

Interp1 returns NaN for all values

According to documentation of interp1. the function returns NaN for points outside the domain. so check V and See if it's point ...

1 year ago | 0

| accepted

Answered

A problem using the app designer

in PlotFitButtonPushed function which you plot your graphs, by using figure you create new figure out of your app.UIFigure. use ...

A problem using the app designer

in PlotFitButtonPushed function which you plot your graphs, by using figure you create new figure out of your app.UIFigure. use ...

1 year ago | 0

| accepted

Answered

How can I get the hessian matrix of a set of several functions?

The Hessian is officially defined for scalar value functions. depend on what application you want to use hessian, you may define...

How can I get the hessian matrix of a set of several functions?

The Hessian is officially defined for scalar value functions. depend on what application you want to use hessian, you may define...

1 year ago | 2

Answered

Find the nonlinear equation

If you have a form of equations they should obey you should try fit that function on your data. you can use eather fit functions...

Find the nonlinear equation

If you have a form of equations they should obey you should try fit that function on your data. you can use eather fit functions...

1 year ago | 0

Answered

Integration of a function multiplied by an array

your y2 function return Array for every single number as it's input. syms x y1 = linspace(0,1,10); y2 = @(x) x.*y1; y2(1) a...

Integration of a function multiplied by an array

your y2 function return Array for every single number as it's input. syms x y1 = linspace(0,1,10); y2 = @(x) x.*y1; y2(1) a...

1 year ago | 0

| accepted