A class to simulate missing arguments in function calls
So you want your function to be able to accept 0, 1, 2, 3, or 4 input arguments? In that case you probably want varargin. funct...

10 days ago | 0

Writing function for fliping vectors
Your function fails to satisfy the requirements of your question in several ways. Let's look at the first two sentences. Wr...

10 days ago | 1

How create a list of like this A{1}, A{2}, A{3}, A{4},... etc.?
If you already have a cell array A, use: A{:} to create a comma-separated list from A. If you're trying to create the cell ar...

11 days ago | 0

managing two variables in sum function
Use element-wise operations to create a matrix of data to sum then call sum with a dimension input. [c, r] = meshgrid(1:5, 1:6)...

11 days ago | 0

what is coder.gpu.kernelfun;
This function was introduced in release R2017b in GPU Coder. You've indicated in the Release information on this question that y...

11 days ago | 1

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Compute the difference matix between a marix and another matrix in MATLAB
You can eliminate one of your loops using the vecnorm function. >> vecnorm(A-B(1, :), 2, 2).^2 ans = 4 25 85

11 days ago | 0

help me ...cos and sin value not correct ! whay
Line 1 is completely unnecessary, since line 2 overwrites those symbolic variables with numeric values. I'm assuming your trotx...

11 days ago | 1

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increasing values midway of an array for theta (using atan2();)
Remember is that atan2 returns values in the closed interval [-pi, pi] so if you go from a y that is just barely positive to one...

11 days ago | 0

When will Matlab 2020a officially be released?

11 days ago | 0

Script Skips a portion of code
If length(Daily) is less than 4, the result of the expression 4:length(Daily) will be empty and so the body of that loop will no...

11 days ago | 0

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How do I combine data from seperate tables into one table with seperate columns
Consider converting these table arrays into timetable arrays. If you do you can synchronize them all to a common time basis. See...

12 days ago | 0

str2num results
From the documentation page for str2num: "In addition, str2num uses the eval function, which can cause unintended side effects w...

12 days ago | 0

Array Indexing in a for loop
Part 1: when one of the quantities you're multiplying is a scalar, the * and .* operators are equivalent. x = magic(4) y1 = 2*...

12 days ago | 1

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deep learning tool box
Prior to being renamed in release R2018b Deep Learning Toolbox was known as Neural Network Toolbox. To forestall one question I...

12 days ago | 0

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Change for loop stepsize
Rather than computing the elements yourself by repeated multiplication consider looping over a vector created using the logspace...

12 days ago | 0

Loading the data could be as simple as calling load. The more challenging part is likely to be sharing this data among the vario...

13 days ago | 0

Slicing variable in parfor loop (restricted indexing)
What requirements must a variable satisfy to be a sliced variable? The documentation states four conditions: Type of First-Leve...

14 days ago | 2

Detecting values in a vector that are different but very close to each other
Use uniquetol to unique-ify the data with a tolerance. uniquetol can return a vector of indices that indicate to which of the un...

14 days ago | 0

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Can I check if factored and expanded polynomial forms are equal?
>> syms w k >> x1 = (w^2-k^2); >> x2 = (w+k)*(w-k); >> isAlways(x1 == x2) ans = logical 1

16 days ago | 0

Only one function doesn't work only after the app designer program is compiled
syms phi z0 This requires Symbolic Math Toolbox which is an ineligible product for MATLAB Compiler. Depending on what "some ...

16 days ago | 0

Put nested structure into another structure
Why not go directly to a table array? a = maketable("result1", 23, "mph"); b = maketable(["result1"; "result2"], [23; 34], ["m...

16 days ago | 0

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I have a complex number z = 5+3j, how do I find the phase of z, complex conjugate of z, and modulus of z?
See the documentation page on Complex Numbers for functions that may be of use when working with complex numbers in MATLAB. Reg...

17 days ago | 0

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Produce a diagnistic once per failed test method?
If you want to store your data, why not use a FileArtifact diagnostic? You could put it in a temporary folder created by a Tempo...

17 days ago | 0

How to call a function if unit test fails?
If all you want your function to do is display a diagnostic message, just modify your call to assert slightly. %% Unit test a ...

18 days ago | 1

Generating a weighted random number
Set up a vector of probabilities. dist = [2 1 1 1 1 1]; p = normalize(dist, 'norm', 1); % sum(abs(p)) is effectively 1 Use th...

18 days ago | 2

How to detect the 'end' directive in subsref?
Overload the end method for your class as described on this documentation page. The reason end was always taking the value 1 is...

18 days ago | 2

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Matlab and IDL Data Types
The default data type in MATLAB is double. There are some functions and functionality that by default create variables of diffe...

18 days ago | 0

Random but equal distribution of numbers 1 and 2
Do you need exactly equal numbers of 1's and 2's or just a vector where each element has an equal probability of being 1 or 2? ...

18 days ago | 2

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What type of function Matlab has help to construct symmetric matrix?
Several of the matrices you can create using the gallery function are symmetric, and some have other interesting and/or useful p...

18 days ago | 1

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