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Question
what is .data extension in matlab
Hi, I have the code below: X=importdata('test.csv'); B = X.data; I searched for the .data extenion file type , but...
6 months ago | 1 answer | 0
1
answerQuestion
Error in LS-SVMLab ?
Hi, kindly, i have an issue with lssvm tool toolbox, i am getting error !! Please could you help ? error Dot indexing is not...
1 year ago | 0 answers | 0
0
answersQuestion
GridSearchCV , what is fittingfunction ?
Hi, irstparam = [1, 2, 3.3, 3.7, 8, 21]; %list of places to search for first parameter secondparam = linspace(0,1,20); ...
1 year ago | 1 answer | 0
1
answerQuestion
Computer block when use YOLO4 ?
Hi, I have used the code in the link below for YOLO4, my computer is blocked !!!!!, the screen turned black, and mouse freezed...
2 years ago | 1 answer | 0
1
answerQuestion
Issue with YOLO4
Hi, I tried to run the yolo code , but i get the error below : 'validateInputData' is used in the following examples: ...
2 years ago | 2 answers | 0
2
answersQuestion
Dimension Disagree issue ?
Hi, I have the code below : % 2D Data sample1 = [ ( 75.2 - 32 ).*rand( 1, 20 ) + 32, ... ( 60 - 20 ).*rand( 1,20 ) + 20...
2 years ago | 1 answer | 0
1
answerQuestion
Convert Cell to array did not work ?
Hi, I have a cell array wich is 1x561 double 1x321 double 1x481 double when i try to convert it to array using the code...
4 years ago | 1 answer | 0
1
answerQuestion
Clusters lables for fuzzy c mean
Hi, I have used MATLAB code for fuzzy c mean clustering : X= data set. [centers,U] = fcm(X,3) labels = ones(size(X,1),1); ...
4 years ago | 1 answer | 0
1
answerQuestion
Accuracy Calculation using confusionmat?
Kindly I have an issue with accuracy calculation, please could you help ? y_train = [ 1 1 1 4 4 3 3 5 5 5 ]; % for x_train %x_...
4 years ago | 0 answers | 0
0
answersQuestion
How to delete row or column in x.mat file
Hi, I have a X.mat file, its big mat file. how can i delet the rows ( specific row ) !! for example; row : 600 to 3000 d...
4 years ago | 1 answer | 0
1
answerQuestion
Image Sharpness Calculation ?
I have an issue with Image sharpness calculation, iam trying to code the formula below , but iam getting error : The formula...
5 years ago | 1 answer | 0
1
answerQuestion
How to calculate the Gaussian Weight ?
How to calculate the Gaussian Weight in matlab for ith pixels of an image ? What is the gaussain weight ? is it the gaus...
5 years ago | 0 answers | 0
0
answersQuestion
Function IND2GRAY expected input number 2, MAP, to be a valid colormap.
Iam trying to read and convert color images to gray, The code is : [X,MAP]=imread(im); x=ind2gray(X,MAP); ...
6 years ago | 1 answer | 0
1
answerQuestion
Covariance of Images data set
I have the code below: Np=40; TI = 10; % number of images per person for NTr = 1 : 9; c=1; f...
6 years ago | 0 answers | 0
0
answersQuestion
Conversion of 100 jpg images to PGM
Kindly how can we convert 100 images which are jpg to PGM format? the Matlab code for one image conversion is: I =...
6 years ago | 4 answers | 0
4
answersQuestion
Square of 20 random number sum up to 1
The code below generate 20random number which their sum up to 1. r = rand(1, 20); % Start with 20 random numbers. r = r / su...
6 years ago | 2 answers | 0
2
answersQuestion
Inner Matrix Dimensions Must Agree
I have a matrix of 119 x 1 and Z is 119 x 119 should multiply it by a diagonal matrix of 2 x 2: W = [0.12 0 ; 0...
6 years ago | 2 answers | 0
2
answersQuestion
Reading 100 image in a loop and save them in a Matrix
I have the code below for reading 100 images in a loop and iam getting the error which is : cd 'C:\Users\Shawin\Desktop\F...
6 years ago | 3 answers | 0
3
answersQuestion
modify only the diagonal entries in a matrix?
How can I Multiply the diagonal of a matrix by a number, for example; by 2?
6 years ago | 2 answers | 0
2
answersQuestion
an issue with Matrix Index exceed Matrix
I have changed the code to: X=data; epsilon=1; MinPts=37; C=0; [IDX]=DBSCANf(X,epsilon,Min...
7 years ago | 1 answer | 0
1
answerQuestion
issue with distance calculation ?
I have an issue with distance calculation, and I used the code bellow to calculate it: k=2; D=data; ...
7 years ago | 3 answers | 0
3
answersQuestion
Use loop for indexing
I'm trying to retriev an index from data by passing labels from 1 to 2 but the for loop is not changing? clc; ...
7 years ago | 1 answer | 0
1
answerQuestion
how to Calculate SSE for 20 center
I have the function bellow: function y=ObjSSE(x1) global Dim Data for i=1:size(x1,1) c=reshape(x1(i,...
7 years ago | 0 answers | 0
0
answersQuestion
Labelling dendrogram has issue
Iam trying to label a dendogram, but iam getting confused out put : rng default; % For reproducibility X1= [1 1....
7 years ago | 0 answers | 0
0
answersQuestion
Detect a specific range of correlated variable
I have a matrix and it is 100 row by 16 column. I am trying to find the correlation coefficient of the 100 variable (row) and se...
7 years ago | 0 answers | 0
0
answersQuestion
Plot data according th k_dist chart using KNNN
I have used KNN to detect the kth items near a specific point according to the code bellow, But iam not sure how can i use KNN...
7 years ago | 0 answers | 0
0
answersQuestion
problem with Matrix Multiplication
I have a matrix D which is 10x2, and a center Cent is 2x2 and a w diagonal matrix which is 2x2 , i have an equation: Resu...
8 years ago | 1 answer | 0
1
answerQuestion
Struct data assignment has error
am trying to calculate a distance for struct data type. The distance method is: function ssd=distances(x, c) m=s...
8 years ago | 1 answer | 0
1
answerQuestion
Class association has error
I have the code bellow: Course.m classdef Course < handle properties courseName stdent e...
8 years ago | 1 answer | 1
1
answerQuestion
Array Of Object and random number generation
I have a class : classdef Cells <handle properties f; p=[]; c; end end ...
8 years ago | 1 answer | 0
1
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