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Single line of code for vectorization, Need Help!!
r = [0.1 0.2 0.3 0.4 0.5] ; h = [0.2 0.3 0.4 0.5] ; [r,h] = meshgrid(r,h) ; v = 1/3*pi*r.^r.*h ;

10일 전 | 0

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How do you detect duplicate values within a random array?
If you want to use inbuilt functions......you can use unique. Read about it. Let A be your array. B = unique(A) ; if lengt...

10일 전 | 0

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Plotting question using data (water saturation)
sat_data = water_sattemp_data ; plot(sat_data(:,1),sat_data(:,2)) ;

10일 전 | 0

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Adding Array elements from one element to another
Let A be your array. iwant = sum(A(487146:513795)) ;

10일 전 | 0

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Identifying the circle that fits the outer white pixels in a binary image (or make external mask)
I = imread("SampleXRmorph.PNG"); [y,x] = find(I) ; % Get center of cricle C = [mean(x) mean(y)] ; % GEt raidus d = sqrt...

14일 전 | 1

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How to fill the area between contour line and upper bound.
Get your required curve/ line coordinates; form a closed polygon and use patch/ area.

14일 전 | 1

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How to divide vector to matrix(same row and column)
To remove extra elements and convert to square matrix A = rand(82580526,1) ; l = length(A) ; % GEt the nearest perfect squ...

14일 전 | 0

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Plotting user inputs in a 2D plot
prompt = 'Enter any number that you like:'; %{ I only want the user to enter a maximum of 10 numbers. %} N = 10 ; figure...

14일 전 | 0

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2D plot of a matrix
Read about importdata to load the data into MATLAB. You can normalize an array x to [0,1] using: norm_x = (x-min(x))/(max(x)-...

15일 전 | 0

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how to write a for loop in this case?
daily_tmax = cell(length(tmax),1) ; for i = 1:length(tmax) daily_tmax{i} = squeeze(mean(reshape(tmax{i}, size(tmax{i}, 1)...

15일 전 | 1

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Read spesific rowintervals from .txt file and store them
I = [12 40 68] ; iwant = cell(length(I),1) ; for i = 1:length(I) C = textscan(fid,'%.6f %.6f',npoints,'delimiter','\n',...

15일 전 | 0

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How do I plot a line graph from scatter plot?
clc clear all A = 0.05; l_r = 2; %Wave length of the road v = 45; %Speed(m/s) P = l_r/v; %Period %Om = 1/P*2*pi; %Forcin...

16일 전 | 1

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For loop using strings
Let A be your data of size m*3. for i = 1:3 [pks_x_sit1,locs_x_sit1] = findpeaks(A(:,i),'MinPeakHeight',1.25); nr_...

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How to graph using a for loop
YOu need not use a loop as the other user has suggested you. If you use a loop, you need to intiilaize the array and save it in ...

16일 전 | 1

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How to get all values existing in arrays/matrices?
Read about unique a = myArray(:) ; [cnt_unique, unique_a] = hist(a,unique(a)) ;

17일 전 | 1

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In an image to set reference coordinate and get coordinates of color points .
If I is your matrix of image ..use [y,x] = find(I==val) ; where val is your pixel value you want. If I is m*n*3 RGB image....

17일 전 | 0

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Create random paths between two known points in 3D
A = [0,0,0] ; B = [1,1,1] ; N = 10 ; x = (B(1)-A(1)).*rand(N) + A(1); y = (B(2)-A(2)).*rand(N) + A(2); z = (B(3)-A(3)).*...

19일 전 | 0

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How to change from cell to array

20일 전 | 0

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how to detect border irregularity?
If (x,y) are your boundary points. % Get bounding box x0 = min(x) ; x1 = max(x) ; y0 = min(y) ; y1 = max(y) ; % A = [...

21일 전 | 0

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Inf or NaN vaiues normalize into [0 1]
use xnew = (x-xmin)/(xmax-xmin)

21일 전 | 0

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Unable to perform assignment because the indices on the left side are not compatible with the size of the right side. Error in Q38 (line 10) Mat(row,col)=t1
You have to intilize them either as a cell or matrix. I am intializing as cell. check below: %Questions#38 clc clear close ...

21일 전 | 0

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What is difference between indexing using ".var" and "{}"?
.var is to access fields of structures. {} is to access cells. Read about structures and cells.

21일 전 | 0

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I want someone who can help me to see a grid and airfoil in the same plot , here is my code
clear all; close all; clc; Mi=0.5; T=300; P=1; gamma = 1.4; R=287; vinf = sqrt(gamma*R*T)*Mi; Nx = 100; % x ...

23일 전 | 0

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How to quickly find the first non-zero element without iterations in all columns in a sparse matrix?
[val,id] = min(abs(A)) ; Use the minimum function.

23일 전 | 0

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Cannot plot iterations.
clear all ; clc; t=20:30;%range of inital velocities plotted dt = min(diff(t)) ; g = 9.81 ; figure; hold on for i=20:3...

24일 전 | 0

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How to take two inputs simultaneously from the user ?
x=input('Enter range of x :'); xf1 = x(1) ; xf2 = x(2) ; Also have a look on deal.

24일 전 | 0

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# 1:end
idx = [2 5 7 8 9] ; g = zeros(3) ; g(idx) = 1 ;

24일 전 | 0

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How to read mutlple .h5 files
hfiles = dir('*.h5') ; N = length(hfiles) ; % loop for each file for i = 1:N thisfile = hfiles(i).name ; % read...

25일 전 | 0

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plotting x,y,z vertices as mesh
clc;clear;close all; test = xlsread('data.xls'); x=test(:,2); y=test(:,3); z=test(:,4); tri = delaunay(x,y); ...

약 1달 전 | 2