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KSSV


Last seen: Today |  Active since 2011

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Answered
Plotting lines on the same graph
x1 = 0 ; y1 = 0 ; x2 = 1:10 ; y2 = zeros(size(x2)) ; x3 = zeros(1,10) ; y3 = 1:10 ; figure hold on plot(x1,y1,'-*b') ; ...

ungefär 7 timmar ago | 0

Answered
Load mat files matching specific string inclusive of different strings
matFiles = dir('*.mat') ; matFiles_name = {matFiles.name} ; idx = find(~cellfun(@isempty,strfind(matFiles_name,'2015'))) ; ...

en dag ago | 0

Answered
Is it posible to change the number of digits Matlab works with?
You can convert them from double to single. Read about the function single. Also have a look on the function format.

en dag ago | 0

Answered
how to change value in element
Let P be your 10000x1 array. p0 = p ; % To change data from 4901 to 4949 for i = 4901:4949 p(i) = (p(i)+p(i+1))/2 ; e...

en dag ago | 0

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Answered
How can I operate a matrix by a vector?
A = [2 3 ; 1 -2 ; 4 1]; b = [2,4, -5]'; syms x1 x2 x = [x1 ; x2]; f = (sqrt ((A * x-b) .^ 2)) .^ 2

en dag ago | 0

Answered
assigning of multiple arrays
Read about deal. [ss1, ss2] = size(0:1:38); zitaa = ones(ss2,121); [rhoo,thetaa,thetaa1,thetaa2] = deal(zeros(ss2,121)) ;

en dag ago | 0

| accepted

Answered
How do I make two vectors of different length equal in length
A=[1 2 3 4 5 6 7 8] B=[5 6 8 1 2 3 7 4 55 66 88] ; B = B(1:length(A))

en dag ago | 0

| accepted

Answered
Contour Plot gives error
You cannot use contour with column data. You can use scatter to plot data or if your data is gridded consider using griddata or ...

2 dagar ago | 0

Answered
Using epsilon in legend
plot(rand(1,10)) legend('\epsilon_2_1/\epsilon_1_1');

3 dagar ago | 0

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Answered
Incorrect dimensions for raising a matrix to a power
x=0:0.01:4 y=1./(sqrt((1-x.^2).^2+(4*0.01^2*x.^2)))

3 dagar ago | 0

Answered
Replace stale / repeating data with NaN in a table
Var1 = [ 3 , 2, 5, 4, 4 , 4, 4, 6, 2, 3 , 5, 5 ,5 ,5 ] ; % Var1 = [ 3 , 2, 5, 4, NaN , NaN, NaN, 6, 2, 3 , 5, NaN , NaN ,NaN ] ...

3 dagar ago | 0

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Answered
How to loop through multiple text files and make plot for each one in a single script?
txtFiles = dir('*.txt') ; N = length(txtFiles) ; figure hold on for i = 1:N %Open and read txt file fid = fopen(t...

3 dagar ago | 0

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Answered
Replace number with text
Instead of a string, you can try replacing it with NaN. % finding positions of number 5 from table A. [i1,k1]=find(A==5); %...

4 dagar ago | 0

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Answered
Import multiple excel with different column size
xlFiles = dir('*.xlsx') ; % you are in the folder of files N = length(xlFiles) ; % Total number of files iwant = cell(N,1)...

4 dagar ago | 0

Answered
How to remove rows in table that have empty values
Let T be your table. idx = ismepty(T.(2)) ; T(idx,:) = [] ;

4 dagar ago | 0

Answered
Can you help me with the MATLAB code?
LEt a, b, c be your coefficients and (x,y) be your data. y0 = y ; % given data y1 = a+b*x+c*(x.^2-1) ; % approximated...

4 dagar ago | 0

Answered
How can I convert .mat file to .shp file?
Read about shapewrite. Refer this as an example: https://in.mathworks.com/matlabcentral/answers/419530-creating-a-shapefile-fr...

4 dagar ago | 0

Answered
How to substitute one value in vector by vector?
x=[-1 1 -1 1] ; iwant = cell(1,length(x)) ; for i = 1:length(x) if x(i) == -1 iwant{i} = [1 2 3 ]; ...

4 dagar ago | 0

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Answered
how to set legend in matlab
% Auto A = rand(10,2) ; plot(A) legend % Manually plot(A) legend('first','second')

4 dagar ago | 1

Answered
How to split a certain class of images in folder(image dataset contains more than 10,000 images) having different classes into separate folder or location.
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/747179/FETAL_PLANES_DB_data.xlsx') Now you can ex...

4 dagar ago | 1

Answered
row of a random size matrix
A = rand(5,4) ; a = num2cell(A',1) ; A(1,:) a{1}

5 dagar ago | 0

Answered
Finding the mean at each interval
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/746119/Data.xlsx') ; Temp = T.Temp ; V = T.V ; ...

5 dagar ago | 0

Answered
How to extract data of a region using shapefile?
Read about inpoly.

5 dagar ago | 0

Answered
Using while loop in normalized matrix
x = 0 ; y = 0 ; a = 0.2; b = 0.3; while ~(x == 1 && y == 1) c = rand ; d = rand ; m = [a c; b d]; d=nor...

5 dagar ago | 1

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Answered
extract data in specific interval
Let thedates be your datetime array. [y,m,d,h,m,s] = datevec(thedates) ; iwant = thedates(y==2020) You can also use inequal...

6 dagar ago | 0

Answered
I have a 2 dimensional array. I want to view it.
x = trajectories(:,1) ; y = trajectories(:,2) ; plot(x,y)

6 dagar ago | 0

Answered
I need help about the imbalanced data
Read about readtable. After reading you can access the rspective columns using T.T1, T.T2 etc... or T.(1), T.(2) etc. T = re...

6 dagar ago | 0

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Answered
how to read images from subfolder of a data base and train svm cllasification
https://in.mathworks.com/matlabcentral/answers/437494-how-to-loop-through-all-files-in-subfolders-in-a-main-folder https://in....

6 dagar ago | 0

Answered
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
emat = cell([],1) ; % INPUT OF INITIAL MATERIAL DISTRIBUTION % ONLY in 1st ITERATION if (a==1) fid = fopen(...

6 dagar ago | 0

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Answered
Create a 95% confidence circle
Yes you can use... the change would be a == b i.e. horizontal and vertical radii should be same.

6 dagar ago | 1

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