MATLAB enthusiastic

Answered

how to Specify Time Zones?

Given mat file contains series date numbers. Instead of taking time zone as '+HH:mm' format specify local area string as 'Asia/K...

how to Specify Time Zones?

Given mat file contains series date numbers. Instead of taking time zone as '+HH:mm' format specify local area string as 'Asia/K...

18 hours ago | 0

Answered

Use generic matrix an input into a function in MATLAB

function output = iszero(Z) output = any(diag(Z) == 0); end

Use generic matrix an input into a function in MATLAB

function output = iszero(Z) output = any(diag(Z) == 0); end

18 hours ago | 0

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Answered

How to find minimum values of all lines on matrix?

B = min(A, [], 2);

How to find minimum values of all lines on matrix?

B = min(A, [], 2);

21 hours ago | 1

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Answered

Add a vector to a matrix if satisfies one condition

col_3 = A(:, 3); % 3rd column of A con = col_3(2)- 1> B(end) >col_3(end)+1; % your condition if cond C = [A;B]; ...

Add a vector to a matrix if satisfies one condition

col_3 = A(:, 3); % 3rd column of A con = col_3(2)- 1> B(end) >col_3(end)+1; % your condition if cond C = [A;B]; ...

2 days ago | 0

Answered

Trying to make every odd number zero in a vector

x(find(mod(x, 2))) = 0; or x(1:2:end) = 0;

Trying to make every odd number zero in a vector

x(find(mod(x, 2))) = 0; or x(1:2:end) = 0;

2 days ago | 0

Answered

Storing values in a loop

Already your 20000 iterations of the x is stored in the variable in x and for the histogram use command as hist(x)

Storing values in a loop

Already your 20000 iterations of the x is stored in the variable in x and for the histogram use command as hist(x)

3 days ago | 0

Answered

while loop multiple conditions

eps=ones(1,n_windings)*0.01; T_WATERback=ones(1,n_windings)*T_water_hp; T_WATERfront=T_WATER; T_WIREback=ones(1,n_windings)*(...

while loop multiple conditions

eps=ones(1,n_windings)*0.01; T_WATERback=ones(1,n_windings)*T_water_hp; T_WATERfront=T_WATER; T_WIREback=ones(1,n_windings)*(...

4 days ago | 0

Answered

Could anyone help me how to rearrange the matrix in the descending order with respect to the values in another matrix.

[~, b] = sort(c, 'descend');

Could anyone help me how to rearrange the matrix in the descending order with respect to the values in another matrix.

[~, b] = sort(c, 'descend');

4 days ago | 0

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Answered

How to turn existing code into app and which components to use?

You can use any action UI control button in app designer, suppose mostly used one is push button. In the respective UI control ...

How to turn existing code into app and which components to use?

You can use any action UI control button in app designer, suppose mostly used one is push button. In the respective UI control ...

4 days ago | 0

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Answered

how will I replace a string with another string without using strrep?

Can I use regexprep command ??, If yes function newstring = replace_tags(readstring,tag,replacement) r_s=lower(readstring)...

how will I replace a string with another string without using strrep?

Can I use regexprep command ??, If yes function newstring = replace_tags(readstring,tag,replacement) r_s=lower(readstring)...

4 days ago | 0

Answered

add matrix to cell

I guese you want like this?? A=rand(25,25); B=fliplr(A(2:25,:)); % only line no 2 C= nan(25,25); C(2:25, :) = B; % assign...

add matrix to cell

I guese you want like this?? A=rand(25,25); B=fliplr(A(2:25,:)); % only line no 2 C= nan(25,25); C(2:25, :) = B; % assign...

5 days ago | 0

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Answered

How to plot for for a range? showing error

Your code t = 0:0.001:1; D = (117649*exp(4*t))/6561- (117649*exp(4*t))/26244 - (117649*t.^2.*exp(4*t))/4374 - ... (117649...

How to plot for for a range? showing error

Your code t = 0:0.001:1; D = (117649*exp(4*t))/6561- (117649*exp(4*t))/26244 - (117649*t.^2.*exp(4*t))/4374 - ... (117649...

6 days ago | 0

Answered

Looping for storing differet matrix in different rows but in same matrix.

In simple way Calculated_Data = reshape([alpha_data{:}],6,79); In for loop Calculated_Data = zeros(6, 79); k = 1; % count...

Looping for storing differet matrix in different rows but in same matrix.

In simple way Calculated_Data = reshape([alpha_data{:}],6,79); In for loop Calculated_Data = zeros(6, 79); k = 1; % count...

6 days ago | 0

Answered

Easier ways to write this scipt.

clear; clc; balance = 1000;%initial deposit deposit = 500; %yearly deposit APR = 0.04; %interest rate % years =[0:14]; %yea...

Easier ways to write this scipt.

clear; clc; balance = 1000;%initial deposit deposit = 500; %yearly deposit APR = 0.04; %interest rate % years =[0:14]; %yea...

6 days ago | 0

Answered

my Plot not showing a line only the points

If you need plot as line in anyway take additional variables to plot it % Numerical Method of Solving ODE \ Euler Method% % '...

my Plot not showing a line only the points

If you need plot as line in anyway take additional variables to plot it % Numerical Method of Solving ODE \ Euler Method% % '...

9 days ago | 1

Answered

Vectorization of a for loop

% assuming fake data filteredArray = [8 3 5 6 10 5 10 4 8 7]; inputScalar = 5; % then appl...

Vectorization of a for loop

% assuming fake data filteredArray = [8 3 5 6 10 5 10 4 8 7]; inputScalar = 5; % then appl...

10 days ago | 0

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Answered

Importing three .txt files into a structure and then do calculations and form graph.

You said text file contains 31 columns but it has 19 columns only(attached file) You are able to get data for 19 colums from yo...

Importing three .txt files into a structure and then do calculations and form graph.

You said text file contains 31 columns but it has 19 columns only(attached file) You are able to get data for 19 colums from yo...

11 days ago | 0

Answered

How to pick a corresponding value during a for loop run

It is possible, only if both variable scores and 0:Dtetha:Dmax(direction) lengths are equal function D_auto = response(x) % ...

How to pick a corresponding value during a for loop run

It is possible, only if both variable scores and 0:Dtetha:Dmax(direction) lengths are equal function D_auto = response(x) % ...

11 days ago | 0

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Solved

"Low : High - Low : High - Turn around " -- Create a subindices vector

Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

11 days ago

Answered

Create a string array (MxN) where each element is a repeated character based off a numeric array (MxN)

B = string(cellfun(@(x)repelem('#', x), num2cell(A), 'UniformOutput', false));

Create a string array (MxN) where each element is a repeated character based off a numeric array (MxN)

B = string(cellfun(@(x)repelem('#', x), num2cell(A), 'UniformOutput', false));

12 days ago | 2

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Answered

Cartesian to polar matrix

Ybus = [ 20-j*50 -10+j*20 -10+j*30 -10+j*20 26-j*52 -16+j*32 -10+j*30 -16+j*32 26-j*62]; [angle_Ybus, rh...

Cartesian to polar matrix

Ybus = [ 20-j*50 -10+j*20 -10+j*30 -10+j*20 26-j*52 -16+j*32 -10+j*30 -16+j*32 26-j*62]; [angle_Ybus, rh...

12 days ago | 0

Answered

How can i get matrix element for a complex values?

% suppose a fake matrix with size 3x3 >> A = rand(3); A = 0.7922 0.0357 0.6787 0.9595 0.8491 0.7577 ...

How can i get matrix element for a complex values?

% suppose a fake matrix with size 3x3 >> A = rand(3); A = 0.7922 0.0357 0.6787 0.9595 0.8491 0.7577 ...

12 days ago | 0

Answered

Random string generation of message

Assuming you are dealing with row string function out_str = rand_string_gen(np, str) % np = numberf of positions % str = inpu...

Random string generation of message

Assuming you are dealing with row string function out_str = rand_string_gen(np, str) % np = numberf of positions % str = inpu...

13 days ago | 0

Answered

Cartesian to polar matrix

If Ybus = [x + iy] then [angle_Ybus, rho_Ybus] = cart2pol(real(Ybus), imag(Ybus)); see the more details in https://in.mathwor...

Cartesian to polar matrix

If Ybus = [x + iy] then [angle_Ybus, rho_Ybus] = cart2pol(real(Ybus), imag(Ybus)); see the more details in https://in.mathwor...

14 days ago | 0

Answered

How do I fill empty Matrix elements with NaNs?

% assuming a fake structure similor to your case A.a = rand(4,1); A.b = []; A.c = rand(7,1); A.d = rand(10,1); fields = f...

How do I fill empty Matrix elements with NaNs?

% assuming a fake structure similor to your case A.a = rand(4,1); A.b = []; A.c = rand(7,1); A.d = rand(10,1); fields = f...

14 days ago | 0

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Solved

Calculate the area of a triangle between three points

Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

15 days ago

Solved

Fix the last element of a cell array

Note: this is lifted directly from <http://www.mathworks.com/matlabcentral/answers/82825-puzzler-for-a-monday Puzzler for a Mond...

15 days ago

Solved

Split a string into chunks of specified length

Given a string and a vector of integers, break the string into chunks whose lengths are given by the elements of the vector. Ex...

15 days ago

Solved

Convert a numerical matrix into a cell array of strings

Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

15 days ago

Solved

Create a cell array out of a struct

Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

15 days ago