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How to; For loop of angle in projectile motion
You are not updating the theta0 to find the range. You need to input theta0 to the function. clc; clear all ; g = 9.82; %grav...

mehr als 3 Jahre vor | 1

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Plot a 3d surface
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1101840/Ex12.xlsx') ; data = table2array(T) ; x =...

mehr als 3 Jahre vor | 0

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Ploting a 3d figure by exel data
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1101815/Ex12.xlsx') ; data = table2array(T) ; x =...

mehr als 3 Jahre vor | 0

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How to save outputs from previous iterations and plot
n = 180 ; a = zeros(1,n) ; a(1) = 20000; R = 0.06; r = R/12; z = amortization(a(1),R,n); for i = 2:n b = a(i-1)*r...

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How to sort all rows in one table based on one row from the table and another table
Read about ismember T1 = {'Mom', 'Dad' 'Sister'} ; T2 = {'Sister', 'Mom', 'Dad'}; [c,ia] = ismember(T1,T2) ; T2(ia) Now use...

mehr als 3 Jahre vor | 0

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Spline interpolation of 4D matrix
A = rand(450,450,50,3) ; B = zeros(size(A)) ; for i = 1:450 for j = 1:450 for k = 1:50 B(i,j,k,:) ...

mehr als 3 Jahre vor | 0

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How to take average of such an array?
% Make data for demo A = cell(6,2) ; for i = 1:6 for j = 1:2 A{i,j} = rand(1,10) ; end end % Get mean i...

mehr als 3 Jahre vor | 0

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How to get sample names from scatter plot in classification learner
If you have feature1, feature2 in hand, you can use knnsearch to get the index and then check the sample name. If you are havi...

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Why does not string(f.name) work, f = dir(folder)?
folder = "~/Documents" f = dir(folder) ; % f is a structure for i = 1:length(f) f(i).name end

mehr als 3 Jahre vor | 1

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Plotting the function on a Sphere?
r = 1 ; th = linspace(0,2*pi) ; phi = linspace(0,pi) ; [T,P] = meshgrid(th,phi) ; X = r*cos(T).*sin(P) ; Y = r*sin(T).*sin(...

mehr als 3 Jahre vor | 0

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Generate a sequence/vector of randomized letters
a='A':'Z'; letters= a(randi(numel(a), 1, 10)) iwant = strjoin(cellstr(letters'),',')

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Plot 2-d contour of 3D dataset
How about this? T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1099910/data_16082022.csv') ; x ...

mehr als 3 Jahre vor | 0

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Solve the following differential equations using Matlab.
syms p(x) ode = diff(p)+8*p==9 ; cond = p(0)==-1 ; pSol(x) = dsolve(ode,cond)

mehr als 3 Jahre vor | 0

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Compare 2 Matrixs Different Dimension With For
A = [1 1 1 1 2 4 2 3 2 1]; B = [4 1 3 1 2]; idx = A'==B

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Create an image from x and y locations with greyscale value
data = [0 0 255 0 0.5 70 0 1 111 0.5 0 26 0.5 0.5 26 0.5 1 255 1 0 108 1 0.5 26 1 1 70] ; x = data(:,1) ; y = data(:...

mehr als 3 Jahre vor | 0

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getting x and y values and writing them
Already you have data in hand. If you want to write that into a file use: data = [t(:) x(:)] ; writematrix(data,'data.txt') ;...

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How to draw phase portrait
plot(t,xa(:,1)) In the baove use your required index for the column and plot. You can use quiver, if you have vectors. Assumin...

mehr als 3 Jahre vor | 0

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3D dose plot and color wash
T = readtable('myfile.xlsx') ; scatter3(T.(1),T.(2),T.(3),[],T.(4),'filled')

mehr als 3 Jahre vor | 0

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I HAVE A KEY WHICH IS 1*16 MATRIX. HOW CAN I DETERMINE IT'S BIT SIZE?
KEY=[0 0 1 0 3 12 8 7 7 8 12 3 0 1 0 0] ; a = single(KEY) ; iwant = whos('a')

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Create a structure of a field in the workspace
You can save them into a matfile and access, as you like. A = 1 ; B = 2; C = 3 ; save Test.mat ; S = matfile('Test.ma...

mehr als 3 Jahre vor | 0

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append data to the already existed .txt file horizontally
T1 = readtable('file1.txt') ; T2 = readtable('file2.txt') ; T = [T1 T2] ; writetable(T,'file.txt')

mehr als 3 Jahre vor | 0

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overlap the same data 5 times
Let M be the matrix in your mat file. matFiles = dir('*.mat') ; N = length(matFiles) ; iwant = []; for i = 1:N S = ma...

mehr als 3 Jahre vor | 0

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How to determine an y value at a specific x value?
Read about interp1

fast 4 Jahre vor | 0

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How to get the first derivative of pixels along of line?
REad about gradient

fast 4 Jahre vor | 0

Beantwortet
How to plot this ellipse
syms s1 s2 t = 0 ; eqn = s1^2-15.156*s1*s2+229.7*s2^2+488.8*t^2+6844000*s2==4.752*10^10 ; fimplicit(eqn,[-600000 200000 -100...

fast 4 Jahre vor | 1

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Integrate a polyfit-polyval in matlab, I would appreciate any input. I want to calculate the integral of the sine function from a trend li
%% Integration p2=polyfit(X,Y,4); fun = @(x) p2(1)*x.^4+p2(2)*x.^3+p2(3)*x.^2+p2(4)*x+p2(5) ; % using p2 from polyfit val =...

fast 4 Jahre vor | 0

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solve equation numerically 1=(1/y)x*exp(x*y)
syms x y f = 1==1/y*x*exp(x*y) solve(f,x) solve(f,y)

fast 4 Jahre vor | 0

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How to remove leading zeros in decimal representation?
A = [23, 15, 256, 75]; B= dec2bin(A) strip(string(B),'left','0')

fast 4 Jahre vor | 1

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Beantwortet
I want to select an Excel file by it's extension
%% Here only 1 Excel file will be present in ComparySummary folder. And I want select that Excel file with FilePath %% FilePath...

fast 4 Jahre vor | 0

Beantwortet
How to retrieve the specific rows with all the columns in the dataset?
I hope the dataset is in the form of a table. So your table is going to be of size 2832x4. idx = T.Time==1.5 ; T1 = T(idx,:) ...

fast 4 Jahre vor | 0

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