# Bill Tubbs

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**Content Feed**

Question

Reset method being called twice during instantiation of a class instance with inheritance

I'm defining various classes with an inheritance hierarchy and having problems setting up each class's reset method so that it i...

13 días ago | 1 answer | 0

### 1

answerHow to extract matches from results of a regexp match

Here is a one-line solution—it's based on the answer of Stephen23 but instead of finding the matches, it finds the first indeces...

alrededor de 2 meses ago | 0

Question

How to make an inherited immutable super class property mutable in the sub-class?

I have a class which has immutable properties and I want some sub-classes to be able to modify these properties. Obviously it r...

alrededor de 2 meses ago | 1 answer | 0

### 1

answerQuestion

Strings are converted to cells during readtable

I am incrementally saving data to a csv file which includes strings: data = table("string1", "string2"); writetable(data, "dat...

alrededor de 2 meses ago | 2 answers | 0

### 2

answersHow do I create one legend for several subplots?

This is a good answer: Raghu S on 30 Aug 2018

2 meses ago | 0

Question

How to extract matches from results of a regexp match

I'm trying to find the columns of a table that match a pattern. This works: col_names = {'X_est_9', 'X_est_10', 'Y_est_9', 'Y...

2 meses ago | 3 answers | 0

### 3

answersQuestion

Is there a built-in function to validate a class property that should be a cell array?

I'm new to classes and learning about how to define properties and validate their values. I have a class with a property A that...

2 meses ago | 3 answers | 1

### 3

answershow to display the results from simulink in a table

I also prefer working with tables and csv files rather than mat files so I wrote a script to convert a Simulink SimulationOutput...

4 meses ago | 0

Question

Simulink vector index assignment / re-ordering using Selector block

I'm trying to merge two vector signals into one vector according to two sets of indices. For example: u_pos = [2 3 4]; du_p...

5 meses ago | 1 answer | 0

### 1

answerFind in a cell array?

Just in case someone comes here looking to do this with a cell array of chars as I was, it's quite easy this way: my_cell_array...

6 meses ago | 2

How to add a parameter value to the icon of an S-function block

Based on the comments in response to Benjamin's answer, here is the complete and concise answer to the question: First create a...

6 meses ago | 0

| accepted

Question

How to add a parameter value to the icon of an S-function block

I'm new to S-function blocks in Simulink but I've made a working S-function block and now I want to display a value on its icon....

6 meses ago | 2 answers | 0

### 2

answersQuestion

How to store structs and cell arrays of matrices in an S-function's Dwork memory.

I implemented a sophisticated multi-model process observer in MATLAB code using struct objects for convenience. Each struct has ...

6 meses ago | 0 answers | 0

### 0

answersQuestion

Find the minimums along 3rd dimension of an array

I have a 3d array that is constructed from two 2d arrays: a = [1 2 3; 4 5 6; 7 8 9]; b = [1 2 0; 4 0 9; 9 8 9]; c = cat(3,a,b...

8 meses ago | 1 answer | 0

### 1

answerSet Simulink model simulation stop time from m file

You can also do it by passing it as an argument when you run the simulation from the m file: sim_out = sim(sim_model, t_stop)

9 meses ago | 2

Check for equality in the contents of two arrays ignoring order

I think this might be the answer for case 1 (A & B are sets): A = [1 3]; B = [3 1]; assert(isempty(setxor(A, B))) A = [1 3]; ...

10 meses ago | 0

Question

Check for equality in the contents of two arrays ignoring order

I want to check that the contents of two arrays are equal, ignoring ordering of the elements. I couldn't find an existing answe...

10 meses ago | 3 answers | 0

### 3

answersImporting a Table :: [Variables are been modified by Matlab]

The answer by Steven Lord didn't work for me. I got this error: Error using readtable (line 198) Unknown Parameter 'VariableN...

10 meses ago | 0

How to round numbers in tables?

Is here a way to use the round function with tables? Simply using round(my_table, 3) does not work: t = array2table(randn(3, 4...

10 meses ago | 0

Question

Is it possible to sample multiple signals at different rates with the extendedKalmanFilter object?

I need to implement an extended Kalman filter in a MATLAB for loop and decided to use the extendedKalmanFilter object. This was ...

10 meses ago | 0 answers | 0

### 0

answersEfficiently calculate exponentially weighted moving averages of matrix?

I find the easiest way is to use a discrete filter. But the input data is in columns here not rows: x = [0 1 1 1 1; 0 0 1 1 1]...

alrededor de 1 año ago | 0

Question

How to index the values of an array using a series of rows, column indices?

Couldn't find an answer about this and it is not mentioned in the Matlab documentation page on array indexing. I want to know h...

alrededor de 1 año ago | 1 answer | 0

### 1

answerQuestion

Efficient algorithm to compute only the most probable sequences of a random variable out of all possible sequences

I'm looking for a better way to compute the possible sequences of a random variable whos value at time k is given by. x(k) = 1 ...

alrededor de 1 año ago | 3 answers | 1

### 3

answersQuestion

Waterfall plot not showing correctly

I think this is an undesirable feature of the waterfall plot function and I'm posting it here so that others don't spend as long...

alrededor de 1 año ago | 0 answers | 0

### 0

answersQuestion

Special characters in m-file comments are being removed/replaced

I've noticed that special charactes such as 'Γ' and '│' that I sometimes use in comments in m-files are being removed: % Comput...

alrededor de 1 año ago | 0 answers | 0

### 0

answersHow to add variable names for each column when using array2table

I wrote a function to do it: function T = array2table_with_name(X, label, sep) % T = array2table_with_name(X, label) converts ...

alrededor de 1 año ago | 0

Question

Best way to generate an array of all possible integer numbers for a given base and number of digits

I want to prepare an array that contains all combinations in rows of possible sequences represented by an d-digit number of base...

alrededor de 1 año ago | 1 answer | 0

### 1

answerCRL:"Simulation Target IPP BLAS" cannot be found in the registry

Problem was solved for me on Mac OS X by closing MATLAB and all Simulink files and restarting.

alrededor de 1 año ago | 1

How to construct a cell array containing a power series of a matrix

Here is a solution using cellfun: results = cellfun(@(i) A^i, num2cell(1:n), 'UniformOutput', false)

alrededor de 1 año ago | 0

Question

How to construct a cell array containing a power series of a matrix

I want to compute the following power series of a square matrix A (as a preliminary step to constructing a larger matrix using t...

alrededor de 1 año ago | 1 answer | 0