Answered

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...

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

Answered

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...

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

Answered

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...

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

Answered

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)...

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

Answered

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...

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

| accepted

Answered

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

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

Answered

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...

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

| accepted

Answered

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...

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

Answered

When will Matlab 2020a officially be released?

Most likely "in the March timeframe" as stated on this page.

When will Matlab 2020a officially be released?

Most likely "in the March timeframe" as stated on this page.

11 days ago | 0

Answered

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...

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

| accepted

Answered

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...

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

Answered

str2num results

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

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

Answered

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*...

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

| accepted

Answered

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...

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

| accepted

Answered

Change for loop stepsize

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

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

Answered

Data loading in MATLAB

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

Data loading in MATLAB

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

Answered

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...

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

Answered

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...

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

| accepted

Answered

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

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

Answered

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 ...

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

Answered

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...

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

| accepted

Answered

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...

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

| accepted

Answered

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...

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

Answered

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 ...

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

Answered

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...

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

Answered

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...

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

| accepted

Answered

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...

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

Answered

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? ...

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

| accepted

Answered

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...

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

| accepted

Answered

Removing columns from a 5x5 matriz

Indexing. The end keyword will also be of interest to you.

Removing columns from a 5x5 matriz

Indexing. The end keyword will also be of interest to you.

19 days ago | 0

| accepted