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Compact way to extract day and hour from a datetime / datestrings format ?
Thanks a lot @Voss, your code does what I need... In my case, I did in this way and it works: t = datetime(time_array); % I fou...

2 dagen ago | 0

Question

Compact way to extract day and hour from a datetime / datestrings format ?
I have a cell array including datetime / datestrings data, i.e. days and hours. Here following, I show two examples related to...

3 dagen ago | 2 answers | 0

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Suggestions on how to detect anomalies in around 200k time series, maybe with deep learning, maybe in a fast way?
I have tried Time Series Anomaly Detection Using Deep Learning, with just a few thousands of time series, but it is very slow......

12 dagen ago | 2 answers | 0

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Find cycles in an undirected graph
Hey @Matt J! hope this message finds you well! I am back to my post after a while :-) ... I have a quite silly question..... I ...

15 dagen ago | 0

Submitted

Unique function for rows with switched elements
Find unique rows in a 2-element matrix, when rows have switched elements. E.g. when row "1 5" and row "5 1" are both present.

A (possibly compact) way to find (1) unique rows, when rows have switched elements, (2) rows with switched elements, and (3) indices of rows with switched elements
This is my solution and I have created the corresponding File Exchange if interested! a = [1 2 4 5 5 1 2 1 ...

21 dagen ago | 0

| accepted

Question

A (possibly compact) way to find (1) unique rows, when rows have switched elements, (2) rows with switched elements, and (3) indices of rows with switched elements
I have a 2-column matrix and I would need to find the following quantites, possibly in a compact way: unique rows, even when th...

21 dagen ago | 3 answers | 0

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different locations of y-axes and ylabels in subplots
I have 4 subplots and I would like to have: all the 4 ylabel texts (here called as "first", "second", "third" and "fourth") pe...

ongeveer een maand ago | 1 answer | 0

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Question

Convert digital numbers to datetime elements
I have two types of time arrays, t1 and t2, with the same number of elements, i.e. 1056, and both indicating a time range of 44 ...

ongeveer een maand ago | 1 answer | 0

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Can "datetime" be responsible for the misalignment of data in a plot ?
I have two types of time vectors, t1 and t2, both indicating a time range of 44 days: % vector t1 t1 = linspace(0,44,1057); ...

ongeveer een maand ago | 2 answers | 0

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Extend a cell array of dates (from days only, to hours and days) in a compact way
I have a cell vector containing 44 dates, i.e. days: >> C ans = 44×1 cell array {'17-Jun-2017'} {'18-Jun-20...

ongeveer een maand ago | 4 answers | 0

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Subplots of subplots (maybe using subaxis)
I am using the beast exchange file, which default example, load('Nile.mat') % annual streamflow of the Nile Ri...

ongeveer 2 maanden ago | 1 answer | 0

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How to create an overall legend for subplots with the SUBAXIS function?
Hi, how can I create an overall legend by using the subaxis function? The following example does not work: x = -10:10; city...

2 maanden ago | 1 answer | 1

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Question

Select elements of a matrix using an array (of indices)
Hi, I have a matrix composed of 2 columns, called A, and an array of "indices", called I. For each row of A, I would like to s...

2 maanden ago | 1 answer | 0

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Compact way to horizontally concatenate a cell array without the first columns of the cells
Hi, I have two matrices A and B that are "stored" inside a cell array C. Just manipulating the cell array C (and not matrices ...

3 maanden ago | 1 answer | 0

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Question

Compact way to write matrices containing indices
Hi, I have an array A and a matrix B. (Task 1) First, I would like to check which elements of A are members of the first colum...

3 maanden ago | 2 answers | 0

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Question

If condition: "in each row of a matrix one element is zero and the other one is not zero"
How can I write the if condition in a more compact way than if size(find(sum(A==0,2)==1),1) == size(A,1) to express that "i...

3 maanden ago | 3 answers | 0

### 3

matlab_R2022a_maci64.dmg installation crashes after a while.. solutions?
I solved it by: disconnecting the wifi and using mobile phone data changing destination as /Applications/another_folder/MATLA...

3 maanden ago | 0

| accepted

Question

matlab_R2022a_maci64.dmg installation crashes after a while.. solutions?
matlab_R2022a_maci64.dmg installation crashes after a while.. solutions? Note 1: DESTINATION: /Applications/MATLAB_R2022a.app ...

3 maanden ago | 1 answer | 0

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Question

How to draw a "xline" with a given height for the line and a given vertical position for the text?
How to draw a xline with a given height for the line and a given vertical position for the text? In other words, I need a short...

4 maanden ago | 3 answers | 0

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Create a patch which includes all the histogram profiles
@AndresVar: I also got a solution.... it has a few bugs, but it works in the way I was thinking... clear all; close all; clc; ...

4 maanden ago | 0

Question

Create a patch which includes all the histogram profiles
Hi, I have several profiles/skylines of histograms: hold on for i = 1 : 10 X = normrnd(3000,10,[1,1000 ]); histogram...

4 maanden ago | 2 answers | 0

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How can I plot the profile/skyline of an histogram from histcounts?
Hi, how can I plot the profile/skyline of an histogram from histcounts? This is my attempt with the function stairs, which does...

4 maanden ago | 1 answer | 0

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Question

Plot occurrences of values with bin edges, by using "histcounts" and "plot" functions
Hi, I have 1000 normally distributed random numbers (with mean = 3 and standard deviation = 10): X = normrnd(3,10,[1,1000]) I ...

4 maanden ago | 1 answer | 0

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Sum elements in the first column according to repeated values in a second column
I found this solution, but I would like to avoid the loop for: [a,b] = unique(A(:,2)); [~,d] = unique(A(:,2),'last'); for i =...

4 maanden ago | 0

Question

Sum elements in the first column according to repeated values in a second column
Hi, I have a two columns matrix, where the elements of the second column are repeated (here below in my example, 55, 98 and 17 a...

4 maanden ago | 2 answers | 0

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Question

How to calculate the centroid / center of a patch?
Hi, how can I calculate the centroid / center of a patch? Maybe something like this? [Xc,Yc] = centroid(patch('XData',X,'YDat...

4 maanden ago | 3 answers | 0

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Question

Detect abrupt changes in signals with functions "wavedec" and/or "cwt"
Hi, I read a MATLAB article called "Detecting Discontinuities and Breakdown Points", where both the wavedec (1-D wavelet decompo...

4 maanden ago | 0 answers | 0

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Display cell array elements/texts in a figure, (i) by using a single index, (ii) separated by a comma, and (iii) by using annotation.
I think I found a solution: i = [1 3 4]; % single index groups = {'London-Berlin','Rome-Paris','Madrid-Athens','Boston-Dallas'...

4 maanden ago | 0

| accepted

Question

Display cell array elements/texts in a figure, (i) by using a single index, (ii) separated by a comma, and (iii) by using annotation.
Hi, I have a cell array containing some text: groups = {'London-Berlin','Rome-Paris','Madrid-Athens','Boston-Dallas'}; I would...

4 maanden ago | 1 answer | 0