KSSV
https://sites.google.com/site/kolukulasivasrinivas/ Professional Interests: Mathematical Computing
Python, MATLAB, Fortran
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Feeds
An N by N by N matrix code
text(0.5,0.5,'D','FontSize',90,'Color','k') axis off I=frame2im(getframe(gcf)); iwant = imresize(I,[50 50]) ; imshow(iwant)
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Array indices must be positive integers
The error is clear......your indices are either negative or zeros double. When you are indexing, the indices should be either lo...
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A soumis
complex corelation and p-value
To find the complex correlation and its p-value between two complex vectors.
12 mois il y a | 1 téléchargement |
getSlope function issues for MATLAB code
You can implement this function in few lines from the Method you have mentioned. Let x be your voltage readings and y be their...
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3d plots with attributes of points
Let data be your three columns matrix. x = data(:,1) ; y = data(:,2) ; z = sata(:,3) ; % Plot as unstructured grid dt = d...
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how to delete my profile?
Go to MyAccount > Profile > Close Account.
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Print a statement to the Command Window
To display text in the Command Window, use disp or fprintf . disp('job done') or fprintf('job done \n')
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Visualizing 4 Dimensional NetCDF Files
REad about slice
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is there a way to automatically label columns with stackedplot with a common name?
You rename the labels of the table to the desired and use stackedplot. A = rand(10,4) ; T = array2table(A) ; stackedplot(T) ...
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How can I plot 2D streamlines on top of a surf plot?
% conc plot first [X,Y,Z] = peaks(100) ; [uX,uY] = gradient(Z) ; figure(1); surf(X,Y,Z); daspect([1 1 1]); shading int...
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How to remove all weird column names from a table and replace them (with numbers or alphabet letters)?
T = readtable(myfile) ; T.Properties.VariableNames = {'1','2','3','4','5','6','7','8'} ; NOTE: The column names on the right...
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Question on surface plotting (beginner)
T = readtable('surface.txt') ; x = T.(1) ; y = T.(2) ; z = T.(3) ; F = scatteredInterpolant(x,y,z) ; dx = 0.1 ; dy = 0.1 ;...
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Help importing and reading .csv file and graphing
T = readtable('myFile.csv') ; figure hold on plot(t,T.(1),'r') plot(t,T.(2),'b') legend('data1','data2') Where t is your d...
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Creating a histogram with non-increasing x axis
A = rand(100,1) ; figure h = histogram(A) ; vals = h.Values ; bins = h.BinEdges ; bins = (bins(1:end-1)+bins(2:end))/2 ; ...
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Data Reshape for Contour Plot
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1776380/RawDataCFXPost.xlsx'); [theta,rho,z] = car...
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how to delete the files in a folder using matlab?
Read about delete
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If f1(x,y)≤z≤f2(x,y), how to draw the range of z?
x=-5:0.1:5; y=-5:0.1:5; [m,n] = meshgrid(x,y) ; z1 = m.^2+n.^2; z2 = 3*m.^3+n.^2+1 ; surf(x,y,z1,"EdgeColor","none")...
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Vectorize scalar and colon
A = zeros(6,10) ; A(:,1:3) = 1 ; A(4:6,4:5) = 1;
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Pearson correlation graph between variables
clc; clear ; R = zeros(6,1) ; for i = 1:6 X = rand(100,1) ; y = rand(100,1) ; R(i) = regression(X',y') ; ...
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how to plot from .csv file?
T=readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1753899/baseline.csv') ; freq=T.(2)(1:6); A_1_PE_H...
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Multiple text entries over plots
You can use the text to add the strings. You need to specify the position where you want to place the string. You may find centr...
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How to Extract photos at Each frame from a Video in MATLAB?
vidObj = VideoReader('C:\Users\Public\Videos\Sample Videos\Wildlife.wmv'); numFrames = 0; while hasFrame(vidObj) F = read...
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Interpolation of two-dimensional within a given space window
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1744881/Points.txt'); x = T.(1) ; y = T.(2) ; z ...
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copping grayscale image and remove any other borders or details
Read about imcrop. [I,rect] = imcrop(myimage) ;
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Script has no errors, but no plot is given
% Constants hbar = 1.0545718e-34; % Planck's constant m = 9.10938356e-31; % Electron mass l = 1; % angular momentum quantum...
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Index in position 1 is invalid. Array indices must be positive integers or logical values.
You need to proceed like this: tic % Specifying the length of the array N = 1000; % Making phi and theta array lengths th...
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How to move colorbar in scatter3 plot and keep it inside the figure
You need to play with the position. cb.Position = [x y L w] ; The position have the details of position (x,y) of the colorbar...
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How do I plot a polynomial equation and set of x-y coordinates on the same graph?
x = [2 5 8 11 14 20]; y = [0.20 0.29 0.44 0.50 0.66 0.56]; p = polyfit(x,y,3) ; yi = polyval(p,x) ; figure hold on plo...
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How to make double array representation as complex array with null imaginary number ?
z = 3+eps*1i
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