KSSV

Last seen: en dag ago | Active since 2011

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

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

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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")...

3 dagar ago | 0

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

16 dagar ago | 0

Answered
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') ; ...

16 dagar ago | 0

Answered
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...

30 dagar ago | 0

Answered
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...

ungefär en månad ago | 1

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Answered
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...

ungefär en månad ago | 0

Answered
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 ...

ungefär en månad ago | 0

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

ungefär en månad ago | 0

Answered
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 månader ago | 0

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Answered
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 månader ago | 0

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Answered
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 månader ago | 0

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Answered
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 månader ago | 0

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

5 månader ago | 2

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

5 månader ago | 1

Answered
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 månader ago | 1

Answered
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 månader ago | 1

Answered
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 månader ago | 0

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

5 månader ago | 0

Answered
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 månader ago | 0

Answered
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 månader ago | 0

Answered
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 månader ago | 0

Answered
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 månader ago | 0

Answered
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...

6 månader ago | 0

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

6 månader ago | 1

Answered
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 månader ago | 0

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Answered
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 månader ago | 1

Answered
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 månader ago | 1

Answered
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 månader ago | 0

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Answered
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 månader ago | 0

Answered
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 månader ago | 1

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