Answered
plot a table of two columns
If T is your table. To plot use: plot(T.(1),T.(2))

5 dagen ago | 1

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Answered
Write function that returns true if (inputmatrix > 0)
A = rand(5) ; P = A > 0.5

5 dagen ago | 0

Answered
Why isn't the plot showing up? (new on programing)
x = linspace(-10,10,100); y = @(x) (x.^2 + x.^2 + 3.*x)./(x.^2 + 4.*x + 5); % element by elememnt division plot(x,y(x),'r','L...

5 dagen ago | 0

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Answered
How to get the centerline of a binary region
You can get the indices of white pixels using find and to the data you can try fitting a line or quadratic equation using polyfi...

6 dagen ago | 3

Answered
Transforming 4 sets of 1x4 matrix into a 4x4 matrix
zetaliq=zeros(4); for j=1:4 zetaliq(j,:)=(pi/6).*rholiq.*(X1.*m1.*d1^(j-1)+X2.*m2.*d2^(j-1)) ; end zetaliq

6 dagen ago | 0

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Answered
Grouping data into bins and then plotting them
You can calculate the every three hours mean using the fuction retime. Read about it. To see the variation of every hours, stria...

6 dagen ago | 0

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Answered
How to delete some of anonymous variables randomly?
Multiply each variable with a constant array, and assign this contant array with 0 and 1. See to it that, randomly only three 1'...

6 dagen ago | 0

Answered
Array indices must be positive integers or logical values.
%Euler Method %parameters g=9.81; rho=1.2; s=0.00011; m=0.023; Cd=0.9; %Initial Condition V0=0; V=zeros([],1); %I...

6 dagen ago | 1

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Answered
how can I find the maximum value of a parameter running within a loop
maxC = 0 ; for i=1:100 A=f(i) ; B=f(A,i) ; C=f(B,i) ; if C > maxC maxC = C ; Amax = A ;...

7 dagen ago | 0

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Answered
make a matrix out of list
Read about importdata. You can import the data into MATLAB, the data will be a cell array. S = importdata('myfile.txt') ; cel...

7 dagen ago | 0

Answered
How could I write in a vector something in a position different to a given one?
v = [1,2,3,4,5]; idx = 3; iwant = NaN(size(v)) ; iwant(idx) = v(idx)

8 dagen ago | 1

Answered
How to store data when a string condition of another column is met?
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/768171/SED_FULL_NE.xlsx') ; id = [1 4 12] ; T =...

8 dagen ago | 0

Answered
Finding coefficients from 4 degree polynomial
Read about polyfit. This will help you to fit the required degree polynomial and also gives you the coefficients. Also have a lo...

8 dagen ago | 0

Answered
black line frame around scatter3
You can draw lines using line. Read about it. Also try box on.

8 dagen ago | 0

Answered
What is the difference between [v' 1] and [v', 1]?
v = rand(3,1) ; [v' 1] [v',1] That is nothing but vector v is increased by one element at the end and the value is 1.

8 dagen ago | 0

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Answered
Split the graph based on a specific value
Let (x,y) be your data. idx = knnsearch(y,mean(y)) ; % this will give index in y which is close to mean(y) % plot plot(x(1:...

8 dagen ago | 0

Answered
Plot Modes of a cylinder in 3D
Have a look on this: https://in.mathworks.com/matlabcentral/fileexchange/34143-meshing-thin-shells-using-four-noded-elements?s_t...

9 dagen ago | 1

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Answered
Error using plot Data must be numeric, datetime, duration or an array convertible to double.
Variable phi used in the plot is a symbolic variable. 1/3 - (310775629405771*exp(t*4i))/576460752303423488 You cannot plot tha...

9 dagen ago | 0

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Answered
vpa is not outputing enough digits
It seems a is a rational number so there are no digits to display else from zeros. Where as pi is a irrational number, so you ha...

9 dagen ago | 0

Answered
Draw the ezplot for the function 𝑥^ 2 + 6𝑥 + 55
It is very striaght forward and very easy to plot. Just read the documentation. It got example problem with which you can learn ...

9 dagen ago | 0

Answered
How plot 4D data?
x = 0.1:0.01:0.19; y = 0.1:0.01:0.19; z = 0.1:0.01:0.19; [x,y,z] = meshgrid(x,y,z) ; f = x.*exp(x.^2 + y.^2 + z.^2); fig...

9 dagen ago | 3

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Answered
how to rectify the below error..
You need to have the function cheb.m, which you can download from: https://people.maths.ox.ac.uk/trefethen/cheb.m and then yo...

10 dagen ago | 0

Answered
Move to next and previous iteration in for loop on button press
%Right for i = 1:10 fprintf('%d\n',i) end % Left for i = 10:-1:1 fprintf('%d\n',i) end

10 dagen ago | 0

Answered
How to plot a function with 3 independent variables
f = @(x,y,z) 0.95*x+0.73*y+0.62*z-130.05 ; x = linspace(0,100) ; y = linspace(0,100) ; z = linspace(0,100) ; [X,Y,Z] = me...

10 dagen ago | 0

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Answered
NaT in Datetime Import Data
Try using readtable. Read about it. T = readtable('myfile.xlsx') ;

10 dagen ago | 0

Answered
How do I copy column datas from multiple .txt file to new file?
You can read your text file using the below code snippet. filename = 'ab20140102.txt' ; fid = fopen(filename,'r'); data = tex...

10 dagen ago | 1

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Answered
Why is my plot not working in my for loop?
This line: theta2=linspace(0,2*pi,2*pi/360); gives you theta2 as an empty matrix, as you have used this for loop indexing, you...

10 dagen ago | 0

Answered
how to get Zm
syms Km Zm Ym [2 2] syms Z R S L Z=R+S*L ; Km=[1 Z; 0 1] ; Zm = sym('Zm',[2 2]) ; % Relation between Km and Zm Zm(1,1)=(K...

11 dagen ago | 0

Answered
How to access a variable stored in group
file1 = 'tropomi1.nc' ; file2 = 'tropomi2.nc' ; x1 = ncread(file1,'/PRODUCT/longitude'); y1 = ncread(file1,'/PRODUCT/latitude...

11 dagen ago | 1

Answered
bracket for p value
Read about annotation, line, text.

11 dagen ago | 0

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