Answered
Error in T12 (line 35) surf(X, Y, fplot) and I have no idea what I was wrong
clc clear close all syms x y f = @(x,y)(x.^2+y.^2+x.*y-12*log(x)-10*log(y)); fx = diff(f,x); fy = diff(f,y); [xc,yc] = so...

7 Tage ago | 0

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Answered
Too many input arguments using square
Code is working fine. It seems you have introduced a variable named square. Clear it and then run the function. REad about clear...

7 Tage ago | 0

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Answered
How to calculate inverse of 3d array matrices with size 3*3*18 ?
A = rand(3,3,18) ; [m,n,p] = size(A) ; B = zeros(m,n,p) ; for i = 1:p B(:,:,i) = inv(A(:,:,i)) ; end

7 Tage ago | 0

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Answered
plot 2D array using imagesc ?
REad about subplot

7 Tage ago | 0

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Answered
How can I filter an entire row using a date?
You have varities of cunction to do that. Cnvert the required datetime column into class datetime. This class has the informatio...

7 Tage ago | 0

Answered
plot gridded data only inside shapefile
Read about inpolygon.

7 Tage ago | 0

Answered
Draw 3D elliptic cylinder with given parameters
You may proceed like this: a = 4.5368 ; b = 5.6885 ; C = [0.5351, -5.2359] ; L = 21.98 ; u = linspace(0,2*pi) ; v = lins...

7 Tage ago | 1

Answered
Merge rows based on conditions in the coulmns
data = importdata('dmp.txt') ; [c,ia,ib]= unique(data(:,[1 end]),'rows','stable') ; N = length(c) ; iwant = cell(N,1) ; f...

7 Tage ago | 0

Answered
Apply a color map to a 2d line
Read about patch x = linspace(1,10,15); y = sin(x); y(end) = NaN; c = y; figure patch(x,y,c,'EdgeColor','interp'); colo...

7 Tage ago | 0

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Answered
What do I have to do if I want to derivative and continue multiplying?
A = [1 2;3 4;5 6]; B = [7 8;9 10;11 12]; D = A'*gradient(B)

7 Tage ago | 0

Answered
Write a function with input .xls file to read
To load the excel data into matlab use readtable To compare values you can use isequal, ==, etc.

7 Tage ago | 0

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Answered
How can I convert surface plot into STL format file?
[X,Y,Z] = peaks(100) ; surf2stl('test.stl',X,Y,Z)

8 Tage ago | 0

Answered
How can I represent points and lines in 3 dimensions?
It is in 3D, you need to change the view. view(3)

8 Tage ago | 1

Answered
How to visualize a table in a color dot plot?
Let A be your matrix. [m,n] = size(A) ; [X,Y] = meshgrid(1:m,1:n) ; figure hold on plot(X(A<0),Y(A<0),'.b') plot(X(A>...

11 Tage ago | 2

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Answered
How to convert a Year Month and Date to Day Number?
Load the data from csv file into MATLAB using readtable You can convert the dates into date numbers using datenum

11 Tage ago | 0

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Answered
How to get column values using indexes
LEt A be your matrix. C5 = A(:,5); % 5th column M1 = A(C5==1,1:4) ; M2 = A(C5==2,1:4) ;

11 Tage ago | 0

Answered
How to plug in and solve for algebraic equation?
t = linspace(0,1) ; z = 15*(1+(4.1*0.064)/1000*(15/150)^(2/3)*t.^(5/3)).^(-3/2) ; plot(t,z)

11 Tage ago | 0

Answered
How can I implement KNN ? I want to have user input and data from excel sheet compared.
Say it loudly today that your function is knnsearch. weight = [971; 1401; 105; 210] ; age = [15; 30 ; 25 ; 67] ; data = t...

11 Tage ago | 0

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Answered
How can I detect the centroid or center of segmentation image ?
Read about regionprops

11 Tage ago | 0

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Answered
creating a three-dimensional array from three array with different size
a = rand(1,8) ; b = rand(1,7) ; c = rand(1,6) ; iwant = cell(3,1) ; iwant{1} = a ; iwant{2} = b ; iwant{3} = c ; iwa...

12 Tage ago | 1

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Answered
I want to loop for files in workspace
s = whos ; for i = 1:length(s) s(i).size end

12 Tage ago | 0

Answered
How to solve this error?
The error is clear. It seems you have an array of size 1x17 and you are trying to extract elements more than present in it. % ...

12 Tage ago | 0

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Answered
Vectors must be the same length
p1=plot (Distanz(i,:) , [Z(i,:) ; HQextrem(i,:); HQ5000(i,:); HQ10000(i,:)]);

12 Tage ago | 0

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Answered
How can i automatically Fill Legend using Cluster Number (K-means)
%Read Dataset %Find the Optimal Clusters for this dataset eva = evalclusters(dataset,'kmeans','silhouette','KList',[1:10]) K=...

12 Tage ago | 0

Answered
how to make figure that shown below
load('aaaa.mat') ; time = aaaa(:,1) ; ttt=(time/60); % Set the time in minutes for figures % Rescale the time to look ...

12 Tage ago | 0

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Answered
How do I print a given martix in a spiral matrix scan order but the start from any element as user defined?
This might help you: https://in.mathworks.com/matlabcentral/answers/466188-how-do-i-generate-a-spiral-matrix-which-starts-from-...

12 Tage ago | 0

Answered
'equal' operator does not work on tables
You need not to un a loop. You can get it with one go using ==. Let T1, T2 be your tables, and you want to comapare 9 the column...

13 Tage ago | 0

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Extract 2D matrix from 3D matrix
Read about slice

13 Tage ago | 0

Answered
Asking the user to enter the extension of the files and load all of them in the current directory
files = dir('*.txt') ; filenames = {files.name}

13 Tage ago | 0

Answered
Maths Solution to a equation
syms n eqn = cos(0.8)^n == sqrt(2) ; s = solve(eqn,n) vpa(s)

14 Tage ago | 0

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