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Encryption of a string
solution: function output=yourfunction(n,e) output=char(double(e)+n) end

約6年 前 | 0

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How to calculate cumulative average of every n values in a matrix?
solution: mean100x20=reshape(mean(reshape(A,3,[])),100,[])

約6年 前 | 1

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find new matrix whose rows summation is between two integers
solution: B=A(and(sum(A,2)>=130,sum(A,2)<=135),:)

約6年 前 | 1

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Remove specific entry in a cell array
solution: element_row{1,1} = [1 10 18 24 31 40 0] element_row{1,2} = [2 11 19 25 32 41 49 -1] element_row{1,1}(end)=[]; ele...

約6年 前 | 0

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Fill inner holes in the image
change image.jpeg for the name of your image image=imread('image.jpeg'); mask=imfill(imclose(not(imbinarize(rgb2gray(image))),...

約6年 前 | 0

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Load data from mat files to a matrix
if your data is called 1.mat, 2.mat, 3.mat and so on, and in addition each of these data contains a structure called "Data" and ...

約6年 前 | 0

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Clear a Matrix from a multidimensional Matrix at each iteration
Matlab needs to make sure that all the indexes include all the values included, therefore it needs to be ":", I leave the soluti...

約6年 前 | 2

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How can i find specified numbers in an array without using for loop?
solution: answer=cell2mat(arrayfun(@(x,a) find(ismember(x{:},a)),b,a,'Uni',false))

約6年 前 | 0

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Timeseries data in Matlab
try it: [filename,folder]=uigetfile('*.txt','please select your txt file'); a=readtable(fullfile(folder,filename)); time=dat...

約6年 前 | 0

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add rows to a 344x2 matrix
Solution: matriz=zeros(344,2) for i = 1:length(a) j = a(i) b = gnbh(j,2) c = [j,b] matriz(i,:)=c; end

約6年 前 | 0

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Unable to perform assignment because the left and right sides have a different number of elements
congratulations! ,you did very well, just a few small changes: % Euler's Method % Initial conditions and setup h = 0.1; % s...

約6年 前 | 0

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how to sum first 140 elements every time in an (1 * 21000) array
solution: a=rand(1,21000); b=sum(reshape(a,140,[]));

約6年 前 | 0

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how can I sort a struct?
solution: x=1:5;%put your x here chr.id=[]; chr.sequence=[]; chr.Si={}; chr.relevant=[]; chr.vic_item = []; len=numel(x)...

約6年 前 | 0

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reset the counter in for loop
because the for loop once defined ignores some change in its variable and tries to execute normally, but with this you can solve...

約6年 前 | 1

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how to validate that my inputs are not characters
enter1 = true; while (enter1 || ~valid) enter1 = false; choice = input('Would you like to play No Thanks? Enter 1 for...

約6年 前 | 0

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Mean of 72720 rows in one column such that I can take mean of 720 rows separately.
data is your 72720 rows in one coloumn mean720=mean(reshape(data,720,[])); figure; plot(mean720)

約6年 前 | 1

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can i make a loop for mentioned equation?
It would be something like this : Pb1dis =inf; Pb_dis2=3600; tol=0.0001;%tolerance while abs(Pb_dis2-Pb_dis)>tol Pb_d...

約6年 前 | 0

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How can I save data when it is being generated in a loop?
you can check the xlswrite function and also the writetable function: example: a = 5; w = 0.2; ts = 0.1; t = -ts; y = 1; ...

約6年 前 | 1

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What does X = max(0,A) mean?
it means that some value less than 0 in matrix A will be replaced by 0 in order to have a matrix whose minimum value is 0, examp...

約6年 前 | 2

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How to retrieve last 3 digits from each entry of a matrix of order 3 x 4 ?
solution: A = [35679, 35678, 35677, 35676; 35675, 35674, 35673, 35672; 35671, 35670, 35669, 35668]; last3digits=A-round(A,-3)...

約6年 前 | 0

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change numbers in array
you can do this: array = input('Please enter array'); array(array<=0)=nan or this : a=true; while a array = input('Ple...

約6年 前 | 0

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Low contrast object detection
I leave you an example: close all RGB=imread('negativo/drone_image.jpg'); BW = (RGB(:,:,1) >= 142 ) & (RGB(:,:,1) <= 178) & ...

約6年 前 | 0

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How to initialize an array such that the values satisfies an equation
I leave you a possible solution: L=300; y= -2*(rand(1,L)>0.5)+1;%put your y here alpha=rand(1,L-1); alpha(end+1)=-sum(alpha....

約6年 前 | 1

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How to get n number of sample sets each containing m number of elements from a dataset
solution: v1=[1:1000];%put your dataset here n=16; m=4; [~, ind] = sort(rand(n,length(v1)),2); samples=v1(ind(:,1:m))

約6年 前 | 1

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how can i fill matrix using a vector?
without repetition : v1=[1 4 8 9 3 6 ]; v2=[v1 zeros(1,4)];% change the amount of 0 to increase the probability in this ca...

約6年 前 | 1

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str2func operation
type an expression that is a function of"y"'5*y+5' here there is no problem, remember the expression goes in single quotes...

約6年 前 | 0

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how can i fill matrix using a vector?
solution: v1=[1 4 8 9 3 6 ]; v2=[v1 zeros(1,4)];% change the amount of 0 to increase the probability in this case there ar...

約6年 前 | 1

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how to create an error message when invalid data is input and then prompt to re-enter the data
person_age = input('Please enter persons age'); while person_age < 1 errordlg('Please input valid number','Error') ...

約6年 前 | 1

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Deep Neural Network Training (Non-Image Classification)
For your problem I recommend that you use patternnet example: [x,t] = iris_dataset; %x is 4x150 (4 features,150 samples) , y...

約6年 前 | 0

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Create main diagonal with repeated numbers but one exception
solution: n=5; M=diag([0 ones(1,n-1)])+ones(n)

約6年 前 | 1

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