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...

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...

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

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

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...

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

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...

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...

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...

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)

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.

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)

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)

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>...

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

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) ;

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)

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...

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

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...

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

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. % ...

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,:)]);

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=...

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 ...

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-...

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...

'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

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}

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)

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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