Question


GUI editbox can't evoke a pushbotton?
Hi, I'm working on a GUI design and I created a edit box and a pushbutton. Shown in the picture below. What I woul...

más de 1 año ago | 1 answer | 0

1

answer

Question


Is it possible to make 'uisetcolor' integrated in GUI?
Hi I'm trying to build 'uisetcolor' into my GUI. At the moment, if I run my GUI, the 'uisetcolor' pops up in a seperate w...

más de 1 año ago | 2 answers | 0

2

answers

Question


How to make a colour picker similar to this one in Matlab?
Hi, Below is the screenshots for a commercial colour picker available online. The good thing about designing the colour p...

más de 1 año ago | 1 answer | 0

1

answer

Question


How to display multiple images (non indexed images) with different sizes in a row?
Hi Say I have 3 images and they are not indexed images therefore they don't have X, map, they only have RGB values. And th...

más de 1 año ago | 2 answers | 0

2

answers

Question


imshow using double or uint8 RGB values - confusing
Hi, I'm a bit confused about 'imshow' My guessing is that imshow can be used with 2 types of RGB data. RGB values are b...

más de 1 año ago | 1 answer | 0

1

answer

Question


How to draw a L*a*b* colour space or HSV colour space (2D)?
Hi I would like to draw the LAB or HSV colour space in 2D (see below) but I don't know how to draw it. I found some code onl...

más de 1 año ago | 3 answers | 0

3

answers

Question


How to understand C in pcolor? Why are specific colours not other colours coming out of certain numbers?
Hi, I'm struggling to understand C in pcolor. From the official website, https://uk.mathworks.com/help/matlab/ref/pcolor...

más de 1 año ago | 1 answer | 0

1

answer

Question


Does PCA apply on the raw data or the data needs to be pre-normalized before applying pca function?
Hi, According to the link below, https://uk.mathworks.com/help/stats/pca.html coeff = pca(X) I'm wondering whether this ...

más de 1 año ago | 0 answers | 0

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answers

Question


Should I use PCA to order the data points in order to find the mode of the data points?
Question 1: I roughly know that PCA is used for reducing dimensions, it is used for reducing the dimension of features not the d...

más de 1 año ago | 1 answer | 0

1

answer

Question


How to sort the files in a folder by date?
Hi, For example, I have 3 image files in a folder, looks like below (Fig 1). I then tried to get the information of th...

más de 1 año ago | 1 answer | 1

1

answer

Question


Faster way of replacing multiple rows with same vector without using a loop?
Hi, I have a matrix a (see below). I would like to replace the 1st and 3rd row with the same row vector [255 100 0]. a = ...

más de 1 año ago | 3 answers | 0

3

answers

Question


Fast way to replace elements in a matrix?
Hi, for eample I have an a matrix a = 245 255 255 254 252 255 251 250 239 rules: find the row i...

más de 1 año ago | 1 answer | 0

1

answer

Question


Why it is 94? corss-validation for regression tree problem.
Hi, Example shown on the page below. https://uk.mathworks.com/help/stats/regressiontree.crossval.html load carsmall X = [A...

casi 2 años ago | 0 answers | 0

0

answers

Question


cvloss or kfoldloss for regression tree?
Hi, I'm a bit confused with 'cvloss' and 'kfoldLoss'. kfoldLoss https://uk.mathworks.com/help/stats/regressio...

casi 2 años ago | 0 answers | 0

0

answers

Question


'MinParentSize' and 'MinLeafSize' -- regression tree
https://uk.mathworks.com/help/stats/fitrtree.html It introduces the MinParentSize below as: Minimum number of branch node ob...

casi 2 años ago | 0 answers | 0

0

answers

Question


Min objective and function evaluations
As I was learning to optimize regression tree, I'm struggling to understand some of the codes and graphs generated in the matlab...

casi 2 años ago | 1 answer | 0

1

answer

Answered
@(x)sum(x.IsBranch)
Anonymous Functions You can create handles to anonymous functions. An anonymous function is a one-line expression-based MATLAB ...

casi 2 años ago | 0

Question


@(x)sum(x.IsBranch)
Hi, https://uk.mathworks.com/help/stats/fitrtree.html As I tried to understand the example line by line, I am stuck at bel...

casi 2 años ago | 2 answers | 0

2

answers

Question


What is 'categorical predictor' in decision tree for regression
Hi, I'd like to use Matlab's own example for the question. Please refer to https://uk.mathworks.com/help/stats/fitrtree.html for...

casi 2 años ago | 1 answer | 0

1

answer

Question


Entropy to calculate information gain for decision tree for classification problems.
Hi I wonder whether Matlab has the function to calculate the entropy in order to calcuate the information gain for decision ...

casi 2 años ago | 0 answers | 0

0

answers

Question


How to construct a regression tree
Hi, As I was trying to understand the matlab example on the documentation page for constructing a regression tree https://uk.ma...

casi 2 años ago | 0 answers | 0

0

answers

Answered
Hierarchical Clustering - linkage(y)
Only just figured it out. The first and second columns are the new group number after clustering. 4 elements in x each wa...

casi 2 años ago | 0

| accepted

Question


Hierarchical Clustering - linkage(y)
Hi, I don't fully understand the linkage function and its outputs. >> x=[1 2 6 8]'; >> y=pdist(x) y = 1 5 ...

casi 2 años ago | 1 answer | 0

1

answer

Question


Finding the adjoint of a Matrix
Hi I'm trying to find the adjoint of a matrix. On MathWorks documentation webpage, the instruction look something like below...

alrededor de 2 años ago | 2 answers | 0

2

answers

Question


How to divide a cell into two groups based on two types of strings
Hi, I have a cell, say 20 by 1, which looks like below (ignore the 879). Each one in a cell is a string such as 'bad1.png'. ...

más de 2 años ago | 1 answer | 0

1

answer

Question


Try to display a different image on an axes everytime I click on the axes
Hi bros and sis, ------------------------------------------------------------- Say I have three images named '1.jpg', '2.j...

más de 2 años ago | 2 answers | 0

2

answers

Question


Matlab documentation webpage is not working properly
None of the 'Try it in Matlab' buttons on the webpage below is working correctly. I desparately need the sample code to try it i...

más de 2 años ago | 1 answer | 0

1

answer

Question


Passing data between two GUIs
Hi, I made two GUIs, namely 'G1' and 'G2'. For example, if I have a variable 'handles.index = 2' in G1, how can I read thi...

más de 2 años ago | 1 answer | 0

1

answer

Question


show an image in an AXES a) without outlines and b) can be clicked using ButtonDownFcn
Hi, I would like to show an image in the axes in the GUI to achieve two things: a) the image showed has no outlines if I use th...

más de 2 años ago | 0 answers | 0

0

answers

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