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KSSV


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7,279 total contributions since 2011

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

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Answered
In Matlab: How to create a 2d map from a 3 columns file
data = [1901 0 1 1901 -10 2 1901 -20 3 1902 0 -1 1902 -10 3.5 1902 -20 1.5 1903 0 5 1903 -10 -3 1903 -20 0 ] ; x = da...

3 hours ago | 0

Answered
Apply the finite difference
Replace dy/dt with (y(t+1)-y(t))/dt Simplify it so that y(t+1) is on LHS and rest all on RHS. You will get a equation, RHS has ...

4 hours ago | 0

Answered
Difference in Matlab and Excel
Excel fits a striaght line to the data.....to get the same value use polyfit of MATLAB. p = polyfit(X,Y,1) ; p(1)

14 hours ago | 0

Answered
The Code Does not Compute the other elements of Matrix
function P = Prob(A_ax,B_by,rho) d=size(A_ax,1); m=size(A_ax,4); bcount=size(A_ax,3); P = zeros(d,d,bcount,bcount); %%...

19 hours ago | 0

Answered
zero crossings with interpolation
https://in.mathworks.com/matlabcentral/answers/563765-how-to-find-out-if-a-curve-passes-through-zero-and-goes-from-positive-to-n...

19 hours ago | 1

Answered
Concatenate the epoched data
Read about squeeze.

24 hours ago | 0

Answered
How to dynamically define limits forplot from user input ?
Read about input. https://in.mathworks.com/help/matlab/ref/input.html

24 hours ago | 0

Answered
Exclude some values from the heatmap
Let M be your matrix of size n*n. To replace diagonal values with NaN: M = rand(11) ; M(1:(n+1):end) = NaN ;

1 day ago | 0

Answered
How to extract data from .nc file based on latitude, longitude, time and temperature?
There is a easier netCDF toolbox available. REad about ncdisp, ncread. These two commands are more than enough ti read data from...

1 day ago | 0

Answered
How can i Find the derivative of Spline Function?
https://in.mathworks.com/matlabcentral/answers/95194-how-do-i-find-the-derivative-of-a-spline-curve-in-matlab-7-9-r2009b http...

1 day ago | 0

Answered
how to plote a square that rotate around a square
S1 = [1 -1 ; 1 1 ; -1 1 ; -1 -1 ; 1 -1]' ; S2 = 2*S1; for i = 0:0.2:2*pi R = [cos(i) -sin(i) ; sin(i) cos(i) ]...

2 days ago | 0

Answered
Image from RGB to another one
https://in.mathworks.com/matlabcentral/answers/499387-how-can-i-calculate-cmyk-values-from-rgb-in-matlab http://mooring.ucsd....

2 days ago | 0

Answered
Interpolating the data given between -pi and pi
You can simply use m = 100 ; % get this value using your ts step size th = linspace(-pi,pi,m) ; Using the time step ts..s...

2 days ago | 0

Answered
correlation analysis of two adjacent pixels
Read about corr2. https://in.mathworks.com/help/images/ref/corr2.html

3 days ago | 0

Answered
Polygons with true and false statements
Read about inpolygon. You can define your required polygon vertices, and inpolygon will give you indices lying inside with 1 and...

4 days ago | 0

Answered
load curve daily power consumption
data=[0 2 17; 2 6 12; 6 9 3; 9 12 15; 12 14 12; 14 16 14; 16 18 16; 18 20 18; 20 22 16; 22 23 12; 23 24 6]; power=data(:...

4 days ago | 0

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Answered
For loop in matrix
A=1;%dV/dx when x=1,A(0)=1 V=2;%V when x=1,V(0)=1 a=0; b=1; n=100; x=linspace(a,b,n); h = x(2)-x(1) ; V = zeros(size(x)...

4 days ago | 0

Answered
How to make delaunayTriangulation object from points and connectivity in 3D?
You should use the function triangulation for this. Read about this. https://in.mathworks.com/help/matlab/ref/triangulation.ht...

4 days ago | 0

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Answered
Matrix from for loop displaying vectors of different length
You need to interpolate them to the same size using interp1. clc clear close all [index, sname] = textscan('filenr.lis','%d...

4 days ago | 0

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Answered
Dicretization from countour nodes 2D.
Refer this: https://in.mathworks.com/matlabcentral/fileexchange/40681-transfinite-interpolation https://in.mathworks.com/matla...

4 days ago | 0

Answered
how to load an HDF5 file in Matlab?
You should not use load to read your file. You have dedicated functions to read HDF5 files. Refer her: https://in.mathworks.com...

4 days ago | 0

Answered
Subplot in a for loop with different graphs
for i = 1:5 figure(1) subplot(5,1,i) plot(rand(1,10)) figure(2) subplot(5,1,i) plot(rand(1,10)) endfor

5 days ago | 0

Answered
How to solve the matrix K ^ -1 * F where the terms have unknowns?
syms a b c K =[14.8482*a+14.8492*c,-14.8482*a+14.8492*c; -14.8482*a+14.8492*c,14.8482*a+42*b+14.8492*c]; F= [34.641; ...

5 days ago | 0

Answered
How to make algorithm using raster file?
To load the data read about load, importdata, textscan. If your raster data matrix is A, to get your formula use: GDDmax = ma...

5 days ago | 0

Answered
Plotting a pair of linear equations to display a graph showing the solution of a pair of simultaneous equations that my program solves.
Read about input to make the user to enter the results. (I would prefer straight away values) If A is a 2X2 matrix and b is 2*1...

5 days ago | 1

| accepted

Answered
Someone help me. How to plot for this code to obtain figure?
clc clear all close all zeta0 = 1; h = 2; g = 0.0098; vt=sqrt(g*h); c=1; v=c*vt t1 = 50/v; t2=200/v; t=t1; x = 0...

5 days ago | 1

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Answered
Substitute for eval function
It is not adivsed to use eval. You can reshape your data into what you want. Check below: DATA_FC = rand(1001,13428) ; % rando...

5 days ago | 0

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Answered
How do I import multiple .dat files from a folder in Matlab?
datFiles = dir("*.dat"); N = length(datFiles) ; % loop for each file for i = 1:N thisFile = datFiles(i).name ; ...

5 days ago | 0

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Answered
About TRMM Data and extraction it for a particular area?
Refer this link: <https://in.mathworks.com/matlabcentral/answers/407463-how-to-subset-the-matrix-array-with-shape-file#accepted_...

6 days ago | 1

Answered
Visualizing values in a matrix
Read about spy clc; clear all ; m = 10 ; A = zeros(m); % introduce random ones id = randperm(m*m,20) ; A(id) = 1 ; [...

6 days ago | 0

| accepted

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