x = (1:10)' ; y = rand(size(x)) ; plot(x,y,'.r') hold on text(x,y,num2str(y))

12 dagen ago | 0

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How do I prelallocate this sed as there is no loop here?
When you use the way you have shown,MATLAB created a n-D zeros matrix. You need to use as shown below: uLS1 = zeros(1,N_e...

12 dagen ago | 0

Area under distribution fit curve
Let Y be your 261345x1 data. X = (1:length(Y))' ; trapz(X,Y)

12 dagen ago | 0

I want to find the inverse of my function 'mag' and plot it as 'mag1'
Inverse of mag = sin(3*theta); Would be: theta = asin(mag)/3 ;

12 dagen ago | 0

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save multiple plots in user specified folder in jpg form

12 dagen ago | 0

Why matrix return all 'false/0' when there are a lot of similar values between matrix and a column vector?
You should not compare the floting point numbers like that. You should check the difference between them to be less than some to...

12 dagen ago | 0

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Simple question for using 'for loop'
a = zeros([],1) ; c = 0 ; for n = 1:2:10 %This is my homework request.I can't change this. c = c+1 ; a(c) = 2^n ; ...

13 dagen ago | 0

Plotting random numbers in histogram and bin allocation.
You have striaght away functions to achieve what you want. Read about histogram, mean, std.

13 dagen ago | 0

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Need help to get the minimum absolute value of intersection point
Use this file exchange: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

14 dagen ago | 0

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How to plot third variable in a 2d plot?

15 dagen ago | 1

How to compare rows of a matric?
A = rand(1,3) ; % your row B = rand(3) ; % Say complete matrix idx = A > B ; % comapre r = find(sum(idx,2)==3) % find...

15 dagen ago | 0

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t_liner=1.5 ; t1 = zeros(5,1) ; t2 = zeros(5,1) ; t_layer = zeros(5,1) ; t_total = zeros(5,1) ; for i=1:5 if rem(i,...

15 dagen ago | 0

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Is there a way to exclude variables from a string array after they've been chosen using menu function?
Read about setdiff. Or use strcmp get the position and remove the string.

15 dagen ago | 0

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Need To Find Value of Y at X for Curve Z. Detail Problem Explained in description
Read about knnsearch, you provide (Y,Z) data and for a given (y,z) find which point is closest, get the index and assign the res...

15 dagen ago | 0

Problem with Interpolation function involving 2 variables
T = readtable('xyz.xlsx') ; x = T.X ; y = T.Y ; z = T.Z; Xq = -60:60 ; Yq = -160:160. ; [Xq,Yq] = meshgrid(Xq,Yq...

16 dagen ago | 0

why do I receive "Index in position 1 is invalid. Array indices must be positive integers or logical values"
In MATLAB the indexing should be always positive integers and/ or logical. A = rand(1,10) ; A(1) % no error A(10) % no er...

16 dagen ago | 0

query horizonal range of 3-D views

16 dagen ago | 0

convert for loop's answers into a vector
mean(aR2) is a scalar value, why you want to store it into a vector? Are you looking for saving values in a loop into a array?...

16 dagen ago | 0

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Intersections between line and rectangle
Use this file exchange function: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

16 dagen ago | 0

How to find (0,0) in a meshgrid?
x = -10:1:10 ; y = -5:1:5 ; [X,Y] = meshgrid(x,y) ; idx = knnsearch([X(:) Y(:)],[0 0]) ; plot(X,Y,'.r') hold on plot(...

17 dagen ago | 0

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% 34.- Plot the surface % f(x, y) = x y e^(-x^2-y^2) % over the domain [-2; 2] × [-2; 2]. % Find the values and the locations of the minima and maxima of this function.

17 dagen ago | 0

From arrays of two columns into multiple circles
C = rand(10,2) ; plot(C(:,1),C(:,2),'o','Markersize',10) If you want circle with given radius R. C = rand(10,2) ; R = 4 ; ...

17 dagen ago | 0

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how to make a spatial map with two dimensional matrix
Let X, Y, Z be your data. Where X is m*n, Y is m*n and Z is m*n*p matrix. for i = 1:p pcolor(X,Y,Z(:,:,i)) drawnow ...

17 dagen ago | 0

Why Using '%f' as formatspec for a text file containing floating numbers gives no output
data = importdata('data.txt') ; data = data.data ; t = data(:,7) ; x = data(:,17) ; y = data(:,16) ; lat = [32.48...

17 dagen ago | 0

What does C(:,:,i)=[Q11 Q12 Q14;Q12 Q22 Q24;Q14 Q24 Q44]; signify?
C(:,:,i)=[Q11 Q12 Q14;Q12 Q22 Q24;Q14 Q24 Q44]; In the above C, is 3D matrix initialized as 3*3*p matrix. Each matrix of C, sh...

17 dagen ago | 0

Plot a circle with the radius r = 2, % knowing that the parametric equation % of a circle is % [x(t); y(t)] = % [r cos(t); % r sin(t)] for t = [0; 2pi]
If I want to plot sine, I will follow as below: t = linspace(0,2*pi,100) ; x = sin(t) ; plot(t,x) ; Use the above as exampl...

17 dagen ago | 2

Except for the first iteration others show NaN
Try reducing the initial learning rate. options = trainingOptions('adam') ; options.InitialLearnRate options.InitialLearnRat...

18 dagen ago | 0

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Plot 3D shape with grid cell
You have variety of functions to achieve it. It depends on what data you have. I assume you have a 3D volume data i.e. matrices ...

18 dagen ago | 0