How to create a new table array combining the values every n,th element from two different table arrays
In my case I would like to add every 60 values of A to add 59 consecutive values of B So, assuming that A and B are indeed vect...

6 days ago | 0

| accepted

mod gives incorrect result
See my comment to Kalyan's answer for why your naive attempt doesn't work, and learn about floating point numbers so that you ca...

6 days ago | 2

How do I get my matrix dimensions correct?
t_loading, v_trailertank, and co. (the random variables) are column vectors 1000 rows by 1 columns. To these you are adding x./...

6 days ago | 0

Use rowfun to sum multiple columns by group
rowfun is not the correct function for this. rowfun applies the function by rows and consider the input variables as separate in...

7 days ago | 0

| accepted

"Index exceeds the number of array elements (11)."
You create a variable called disp: disp = 'RLC Circuit' %removed brackets which didn't anything Which shadows the built-in ...

7 days ago | 0

| accepted

What is the default varargin in the GUI callbacks? What are the differences between varargin{1} and varargin{2}.Source?
Yes, as Stephen says in his very thorough comment, that advice is utter rubbish. Don't do that it pointlessly obfuscate the code...

10 days ago | 0

I have a Table in MATLAB. In one colum, lots of texts are seperated in comma. I wish to delimate those in seperate colums.
It's not clear what you want as an output since for each row you're going to get a different number of elements after the split....

10 days ago | 0

| accepted

For this you should contact Mathworks directly. We're just a bunch of volunteers here.

13 days ago | 0

Create an array iterating on another array
If I understood correctly: out = zeros(size(N)); for row = 1:size(N, 1) [isfound, where] = ismember(SP, G{row}(1, :)); %...

13 days ago | 0

| accepted

Create new .wav files around findpeak outputs
Here's how I'd do it: infile = 'C:\somewhere\somefolder\test_100m.wav'; %I'd recommend you use full path instead of relying on...

13 days ago | 1

| accepted

calculating the number of days within each month for a range of dates
You've got to learn to work with datetime arrays. There's no need to use datenum to construct datetimes, and adjusting the defau...

14 days ago | 0

| accepted

Transformation of the Matrix in a Loop
With your invented notation it's difficult to know what you actually have in matlab. Assuming you have a matrix such as: Z = [...

15 days ago | 1

| accepted

Old Matlab script not running on newer version
The equivalent of your wavwrite using audiowrite is: audiowrite(fullfile(subj_name, sprintf('%d.wav', block_num)), recordedaudi...

17 days ago | 1

| accepted

Merging matrices by comparison of values of several columns
Nearly right [~, whichArows, whichBrows] = intersect(out1(:, 2:4), out2(:, 2:4), 'rows'); C = [out2(whichBrows, 5), out1(which...

18 days ago | 0

| accepted

Using For Loop to get different outcomes
if ismember(psi_value, [0.05, 0.15, 0.25, 0.35]) %maybe use ismembertol s_plot = 0.8; else s_plot = 0.2; end Note ...

18 days ago | 0

Store a group of points (given x, y, and value) into image efficiently
img = zeros(1000, 1000); img(M(:, 2) + 1000 * (M(:, 1) - 1)) = M(:, 3);

18 days ago | 1

| accepted

Negative Value when using Trapz
Can someone tell me as to why this is the case Because your x vector is decreasing, so is negative for each trapeze a = trapz...

19 days ago | 0

Create two arrays on the basis of other arrays
%first find which of A or B elements are going into. Only depends on V isA = false(size(V)); %put in A (true) or B (false) lA...

19 days ago | 0

| accepted

Create a random sequence based on a matrix columns
A= [1 3 2 4 5 8 9 11 14; 0 0 0 7 6 12 0 0 0; 0 0 0 0 10 13 0 0 0]; %first add an extra column of 0s if the num...

19 days ago | 0

| accepted

convert nested struct to matrix
Well, you obviously can't concatenate vectors of dfferent sizes so if you want to do that you either have to trim the longer vec...

19 days ago | 0

| accepted

Timetable Monthly Average over Many Years
The easiest: precip = table2timetable(readtable('CR_precip.csv')); monthlyavg = groupsummary(precip, 'day', 'monthofyear', 'me...

19 days ago | 1

| accepted

How to extract strings from a table?
Why is the size of the array hardcoded (which means the code will break if something change with the file) instead of just askin...

19 days ago | 0

| accepted

Combining consecutive vectors into a matrix
You must have changed the options of the wizard to specifically create variables from the columns of the excel spreadsheet. Don'...

19 days ago | 1

Index in position 2 exceeds array bounds (must not exceed 4).
I don't know what else you expect from your code. You purposefully create an array data with 4 columns and then write: .. = 1/...

20 days ago | 0

how can I save the data generated from a function that depends on 3 parameters
Assuming the outputs of proprad are all scalar: [Wpig, chla, starch_content] = ndgrid(3:0.5:8, 0.6:0.2:0.5, 2:4:52); [Waveleng...

20 days ago | 0

How to convert data with 3Dimensions to cell array
The simplest is: B = num2cell(A, [1, 2]); %keep rows and columns together, split the pages This will give you a 1x1x2353 cell...

20 days ago | 0

| accepted

Saving textfiles in a other folder
It's never a good idea to modify the matlab path (with addpath or others) just to read or write data files. The simplest way t...

20 days ago | 0

| accepted

How can I merge a row from one table to a second table with more data based on name?
it's not clear what you want the new table to be, nor what you want to do afterward with it (save it?). Here's a start. Adapt as...

22 days ago | 0