# Guillaume

### University of Brighton

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Odd and even numbers

You simply have to go back to the definition of odd and even. An (integer) number is even if it is divisible by 2, odd otherwise...

circa un anno fa | 7

| accettato

Replace NaN values in a matrix with values of x positions after it

regionfill seems to be the function you're after. So: newimage = regionfill(yourimage, isnan(yourimage));

quasi 4 anni fa | 0

Invisible data? Where are they stored?

"from a tool" Is this tool public? Can we see its documentation or download it somewhere? If not, it's going to be difficult to ...

quasi 4 anni fa | 1

change size and format of images

Assuming all the image formats (list required!) are supported by matlab, the process for each image would be: originalimage = i...

quasi 4 anni fa | 1

| accettato

Is it possible to create this colormap and corresponding colorbar in Matlab?

Note that since R2019b, you can write literal hexadecimal (and binary) numbers directly into matlab. I don't have the mapping t...

quasi 4 anni fa | 1

| accettato

app.UITable.Data assignment problem

raw(row_nummber,2) is a cell array (made of just one cell), raw{row_number, 2} is the content of that cell. As long as that con...

quasi 4 anni fa | 0

| accettato

Implementation of array of queues

You may want to bite the bullet and implement your own queue class in matlab as I've suggested before. Otherwise, one possibili...

quasi 4 anni fa | 0

Export to excel from matlab

Indeed, you will end with just the data for the last file in the excel file since for each file, you overwrite what you wrote in...

quasi 4 anni fa | 0

| accettato

MATLAB Onramp: 8.1 Obtaining help

I've just discovered that there are several versions of the Onramp course (R2018b, R2019a, and R2019b). The last two have slight...

quasi 4 anni fa | 0

| accettato

Sorting an array of numbers in descending order by using while loop

"1) Find maximum number from a given array" "2) Then use find function to detect the maximum element idexing" Have a look at t...

quasi 4 anni fa | 0

lower triangular semidefinite matrix

[i, j, c] = find(tril(yourmatrix)) seems to be what you're after.

quasi 4 anni fa | 0

| accettato

Dot indexing is not supported for variables of this type.

What the error message is telling you is that in Get_VolumetricSource at the point you do: if strcmpi(load_type.case,'homogeneo...

quasi 4 anni fa | 1

| accettato

Error using textscan, when trying to read in the first two columns of a text file

"Invalid file identifier. Use fopen to generate a valid file identifier." You will typically get this error because the file id...

quasi 4 anni fa | 2

| accettato

Index in position 2 exceeds array bounds error

How can I fix this? By ensuring that time has at least 1 column before calling your function. At the moment, it is empty since ...

quasi 4 anni fa | 0

How to find the min, max and mean values of 34 timetables stored in a 1 x 34 cell and add them as extra columns to the respective timetables?

The simplest thing would be to add one column to each timetable to indicate the timetable of origin, then concatenate all these ...

quasi 4 anni fa | 0

Using cell fun to extract data from a cell containing objects

"I don't understant what a non-scalar structure implies at the moment but I'll look into it" A non-scalar structure is simply a...

quasi 4 anni fa | 0

| accettato

How to compare elements with above and below element in a column?

Rather than coming up with your own code, I'd recommend using the filloutliers method. It doesn't have a detection method for 'm...

quasi 4 anni fa | 0

Troubles with data types: integers, doubles, scientific notation, and type casting

left = 100*round(left,2); In theory, this should indeed give you integers. Unfortunately, with floating points (double), this i...

quasi 4 anni fa | 1

| accettato

HSV Averages and SD for Image Processing Toolbox

mean like many functions in matlab operates along the first non-scalar dimension of a matrix. Your h is a 2D matrix, so the firs...

quasi 4 anni fa | 1

| accettato

Help! Error using audioread (line 90) The filename specified was not found in the MATLAB path.

Since you don't specify the full path of the file, matlab looks for it in the current directory (whatever that may be) or any fo...

quasi 4 anni fa | 2

| accettato

Is there any data type equivalent for queue?

The short answer is that no, unfortunately, there's no queue implemented in base matlab (there may be something hidden in one of...

quasi 4 anni fa | 2

how to apply horzcat to output arrayfun

I like the functional programming aspect of arrayfun (it clearly says: apply this function to all the elements of these sequence...

quasi 4 anni fa | 1

| accettato

how to combine these in an array

You're trying to vertically concatenate arrays with different number of columns (2, 1, 1, and 20), which indeed is not possible ...

quasi 4 anni fa | 0

| accettato

How to conditionally delete columns in a cell array

If your cell array is indeed a cell array of single characters, then you'd be better off storing it as a char matrix: input = c...

quasi 4 anni fa | 0

How to import Excel data in MATLAB in Mac

"I have read that xlsread does not work on Mac and I would like to know if someone could explain why and if there are work aroun...

quasi 4 anni fa | 1

| accettato

Why do I get "Out of memory." when reading only 16 chars?

"However what I could think of is that Matlab tries to guess the encoding" I've had discussions with Mathworks support about th...

quasi 4 anni fa | 1

| accettato

alternative rounding method when using histcounts

"histcounts makes a rounding decison when a value is exactly on a a bin edge." No, you misunderstand how histcounts works. As I...

circa 4 anni fa | 0

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How can I import and then plot 16 files with .out extension using one for loop?

"Would you please tell me a general code to import any type of extension" There isn't. How you import a file completely depends...

circa 4 anni fa | 1

access component with variable

See Generate field names from variables which also applies to class properties. for i = 1:numel(components) %prefer numel to l...

circa 4 anni fa | 0

| accettato

Binary to decimal converter

"The problem is that when I enter digits greater than 16" You mean when you enter more than 16 digits? Indeed your code cannot...

circa 4 anni fa | 0