KSSV

Last seen: Today | Attivo dal 2011

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https://sites.google.com/site/kolukulasivasrinivas/ Professional Interests: Mathematical Computing

Programming Languages:
Python, MATLAB, Fortran
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English, Hindi, Telugu

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Risposto
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")...

circa 15 ore fa | 0

Risposto
Vectorize scalar and colon
A = zeros(6,10) ; A(:,1:3) = 1 ; A(4:6,4:5) = 1;

14 giorni fa | 0

Risposto
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') ; ...

14 giorni fa | 0

Risposto
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...

27 giorni fa | 0

Risposto
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...

30 giorni fa | 1

| accettato

Risposto
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...

circa un mese fa | 0

Risposto
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 ...

circa un mese fa | 0

Risposto
copping grayscale image and remove any other borders or details
Read about imcrop. [I,rect] = imcrop(myimage) ;

circa un mese fa | 0

Risposto
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...

2 mesi fa | 0

| accettato

Risposto
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...

2 mesi fa | 0

| accettato

Risposto
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...

3 mesi fa | 0

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Risposto
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...

4 mesi fa | 0

Risposto
How to make double array representation as complex array with null imaginary number ?
z = 3+eps*1i

5 mesi fa | 2

| accettato

Risposto
How can I perform time averaging of a signal acquired with an accelerometer?
Read about smooth, movmean.

5 mesi fa | 1

Risposto
Rearranging a vector into a matrix according to other two vectors
x = unique(lat) ; y = unique(depth) ; [X,Y] = meshgrid(x,y) ; F = scatteredInterpolant(lat,depth,concentration,'linear','n...

5 mesi fa | 1

Risposto
how to store total numbers from for loop in variables
x = xlsread('grades.xlsx'); % Initialise all variables to zero fa = 0; pa = 0; cr = 0; di = 0; hd = 0; % Write your cod...

5 mesi fa | 1

Risposto
Plot time-series data
Let A be your table. wavelength = A(:,1) ; Time = 1:size(A,2)-1 ; data = A(:,2:end) ; h = pcolor(wavelength,Time,data') ;...

5 mesi fa | 0

Risposto
Extracting Histogram data for plot generation
h = histogram(rand(100,1)) data = h.Data ; BinEdges = h.BinEdges ; Values = h.Values ;

5 mesi fa | 0

Risposto
Trying to find pi using when loops to a tolerance of 10^-4.
Try somewthing l;ike this: % summation of pi = 4 * (-1^(k+1))/(2*k-1) ; n_digits = 10 ; iteration = 0 ; % starting iteratio...

5 mesi fa | 0

Risposto
hi how can i evaluate the function below from x=1,x=2 into a step of 0.1 y=x/(x2+1)
x = 1:0.1:2; % Define the range of x with a step of 0.1 y = x./(x.^2 + 1); % Evaluate the function plot(x,y)

5 mesi fa | 0

Risposto
convert a .mat to excel file
matFiles = dir('*.mat') ; N = length(matFiles) ; T = table; for i =1:N load(matFiles(i).name) ; T.(i) = val ; ...

5 mesi fa | 0

Risposto
Solving a system of Non Linear Differential Equations
This is the code..I am getting hight values...you may check and modify the code. tspan = [0 1]; y0 = [0 0 100]; sol = ode45(...

5 mesi fa | 0

Risposto
Why does it give error in spectrogram plotting?
Replace data = @(filename)fullfile('D:\Rahul\Data_tokamak\data&plot\data_paper1\H-mode data\H-mode bistable model\set1_neoAno_r...

5 mesi fa | 0

| accettato

Risposto
Plot a time series plot in customized rectangle
plot(time,pm_1,'b','LineWidth',1); % You may change line width

5 mesi fa | 1

Risposto
Hi, I'd like to see the temperature on a surface map of lon (-20 20) and lat (-10 10).I'd like to have an idea so that this script gives me a better visual like on the figure?
You need to make the values lying outside the given scattered points to NaN. For outside values, the function will extrapolate w...

6 mesi fa | 0

| accettato

Risposto
fsurf(sym(1), [0 1 0 1], 'y', 'EdgeColor', 'none'), this is fun for z axis , how about y axis?
What you gave is similiar to: x = linspace(0,1,35) ; y = linspace(0,1,35) ; [X,Y] = meshgrid(x,y) ; Z = ones(size(X)) ; ...

6 mesi fa | 1

Risposto
Using the clear command in functions?
Becuase clc, clear clears your input variables which are saved in the workspace. You need not to use it inside the function. ...

6 mesi fa | 1

Risposto
Error using surf Z must be a matrix, not a scalar or vector.
You have to use X and Y i.e matrix in the calculation Z. x=(0:0.1:pi); y=(0:0.1:pi); [X, Y]= meshgrid(x,y); Z=(sin(0.3*X)+(...

7 mesi fa | 0

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Risposto
How to fill/interpolate missing data to nearest geospatial coordinate?
% Prepare dummy data [X,Y] = meshgrid(1:10,1:10) ; Z = rand(size(X)) ; % Make random nan's idx = sort(randsample(numel(X...

7 mesi fa | 0

Risposto
Loading a .fig file in MATLAB without losing information
h1 = openfig('test1.fig','reuse'); % open existing/ saved figure ax1 = gca; % get handle to axes of figure h2 = figure; % cr...

8 mesi fa | 1

| accettato

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