# chicken vector

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Question

NLP problem with fmincon: Non-differentiable point in objective function

Consider the simplified optimisation problem having as decision variable the vector: where is the number of discretisation ...

11 days ago | 1 answer | 0

### 1

answerHow do variables work in Matlab App Designer?

App Designer works with methods rather than functions. The difference is that your entire GUI is an instance of a sub-class of ...

2 months ago | 1

How to use property validation functions in class definitions for struct fields?

If this is helpful, please remember to vote for best answer. You can read this for more info. classdef myClass properties...

2 months ago | 1

| accepted

How to set both yticks(left and right) in decimal values not exponential or scientific??

F = openfig('energy vs time.fig'); ax = gca; ax.YAxis(1).Exponent = 0; ax.YAxis(2).Exponent = 0; axis square;

5 months ago | 0

Question

Sum inside a "bouncing" domain

I have a set of positions given by x and y. Considering a point yf, I want to know what's the value of yi, when the difference ...

5 months ago | 1 answer | 0

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answerTangent line on a curve. From a peak down the "unload curve" (in each case the bottom curve)

The approach is to find the index of the maximum point in the curve: [~,idx] = max(yData{j}); Then we can compute the derivati...

5 months ago | 0

| accepted

How to plot a vector for fixed intervals

Something like this? t = [1 3 4 7]; a = [5 3 9 4]; stairs(t,a); grid on; xlim([0,10]); ylim([0,10]); xticks(1:10);

7 months ago | 0

| accepted

Why does UIaxes handle is deleted when calling a function and taking inputs as UIaxes handle in MATLAB webapp ?

It would be easier if you share your .mlapp file, but according to this line of error: >> Web Apps does not support multiwindow...

7 months ago | 0

change negative data to zero in one table in matlab

% Create fictitious set of data: tableData = rand(1e1) - .5 % Define tolerance under which data is set to zero: tol = 1e-2; ...

7 months ago | 0

| accepted

Question

Is "geoglobe" currently bugged?

I have always used geoglobe, but when I tried again today, the following command does not work anymore as usual. uif = uifigure...

7 months ago | 3 answers | 2

### 3

answersHow to create a .gif animation visualizing the progress of an optimization process?

The simplest way is to add a few lines of command that saves your current objective function data. You can add something like t...

11 months ago | 0

| accepted

Question

Multi-account reputation earning

I assume it to be against the rules, but upon searching I couldn't find something specific. What is the reccomended practice in...

11 months ago | 1 answer | 1

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answerWhat are anonymous functions in MATLAB, and how can they be used to simplify code? Provide an example where an anonymous function is used effectively.

Anonymous functions are used to store a function into a variable: doubleNumber = @(x) 2*x; doubleNumber(10) The syntax is e...

11 months ago | 2

How do I create a 3D checkerboard?

I would use patch and surf ma don't expect this level of rendering.

11 months ago | 1

How change the slopes in a curve from positive to negative

This works if you don't really care about the value on the y-axis: load datapoints inyb2 = -cumsum(abs(diff([0; inyb2]))); pl...

12 months ago | 0

Indexing of 1D arrays using 2D mapping information

Have a look at this: Interpolate 2-D or 3-D scattered data - MATLAB griddata - MathWorks Italia Interpolating Scattered Data -...

12 months ago | 0

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Question

fmincon non-linear optimisation: issues with sqp and interior-point

I am running an optimisation problem using fmincon. The problem is subjected to very few bound constraints, linear inequality c...

12 months ago | 2 answers | 0

### 2

answersDividing a Square Matrix into Four Distinct Matrices Based on indexing element as well as the last digit

This will give you what you are looking for, except for the inverted number in case of odd number of digits: A = [10902425 30...

1 year ago | 1

| accepted

Why do I Receive this error? Requested 708198x708198 (3736.8GB) array exceeds maximum array size preference (15.9GB). This might cause MATLAB to become unresponsive.

The error message is self-explanatory. Your implementation might be correct but at some point you are generating a variable of s...

1 year ago | 0

MATLAB is not giving good quality eps figure, looks good in png format but looks really bad in pdf.

For article/document/presentation images I suggest you to use export_fig from FEX. The images have a better quality and more sa...

1 year ago | 0

change size of rectangles in full screen

Use uigridlayout to customise these parameters and have autmatic scalability when you change figure's dimensions. You can set s...

1 year ago | 0

How to change a variable name without changing the value itself?

This is in general not recommend because is prone tu bugs and affects code readibility. If you really want to do this anyway, h...

1 year ago | 1

Incorrect number of inputs or outputs for function linspace

Even if it is a matter of personal taste, for unit steps I usually prefer to do: z1 = 1 : 100; Nontheless, this should also wo...

1 year ago | 0

y-axis with diffent scalings

If you want to keep the figure with this format, I'd say you have two options. You can either make an axis break with the FEX...

1 year ago | 0

How to improve plotting speed of large STL models using patch?

To really help you would be convenient to see what you are dealing with and what have you tried, but one thing I can say for sur...

1 year ago | 0

Ctrl + F1 (on Windows) not working anymore for 2023a?

This is not mentioned in the release notes so I can't be completly sure it is true, but it appears that the shortuct for "Functi...

1 year ago | 1

How to add data stored in structure depending on other data related but stored in a different structure

I am not sure I udnerstand correctly what you need, because this line is confusing me: debit_total = zeros(size(debit)); You w...

1 year ago | 0

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LU decomposition algorithm change

This was introduce in R2022a and might be a promising candidate to answer your question. Quoting Matlab realease notes: inv ...

1 year ago | 1

Converting a table to a matrix based on coordinates

Be careful because Matlab uses inverted indeces so this way you have X as rows and Y as columns. Just invert the indeces in the...

1 year ago | 0

| accepted

Question

Can you place ui-components in uigridlayout using Name-Value pair input?

uif = uifigure; uig = uigridlayout('Parent', uif, ... 'ColumnWidth', repmat({'1x'}, 1, 5), ... ...

1 year ago | 2 answers | 0