KSSV

Last seen: Today | Active since 2011

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

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Python, MATLAB, Fortran
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Answered
smoothing a graph using matlab
Read about smooth, polyfit

12 hours ago | 0

Answered
how to export of a sub aera of an array to xyz?
xx = A(:) ; yy = B(:) ; zz = C(:) ; P = [xx yy zz] ; fid = fopen('test.txt','w') fprintf(fid,'%f %f %f\n', P.') ; fclos...

13 hours ago | 1

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Answered
plot data on a meshgrid
Read about pcolor, surf

13 hours ago | 1

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Answered
How do I convert a non-normal distribution to an equivalent normal distribution?
Read about Box-Cox transformation.

1 day ago | 0

Answered
Identify Zerocrossing Indices near to the peak of the other signal matlab
Multiple options: Use knnsearch Use interp1 Use InterX: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-inter...

1 day ago | 0

Answered
select the first row in the matrix
A(1,:) Go through the basics here: https://www.mathworks.com/learn/tutorials/matlab-onramp.html

1 day ago | 1

Answered
How to write code for diagonal matrix with specified input ?
n = 3 ; s = 2 ; iwant = zeros(n) ; for i = 1:s iwant(i,i)=1 ; end iwant

1 day ago | 1

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Answered
for loop increment problem
clc clear % first we should note that this is a log-log plot % Let's introduce k first k = logspace(0, 4, 100)'; %connectivi...

2 days ago | 0

Answered
Colour code to find how big a function is
x = linspace(-1,1) ; y = linspace(-1,1) ; [X,Y] = meshgrid(x,y) ; F = (Y-X)./(1+X.^2) ; surf(X,Y,F)

2 days ago | 0

Answered
I wanted to import csv files in a specific folder and wanted to plot graphs of them from the data of secound column and third column in the file can you please help me
thepath = 'D:\APDL\Cylinder\CSV Files\'; files = dir([thepath,'\*.csv']) N = length(files) ; for i = 1:N fi...

3 days ago | 0

Answered
Have latex (bold) and variable in legend of a figure
plot(rand(1,10)) ; hold on plot(rand(1,10)) ; legend( 'Error','$[\frac{tv_p}{r_{well}}](\Pi_1=)$','Interpreter','latex', ...

3 days ago | 0

Answered
how to merge centroids?
You have the coordinates of centroid, you can use knnsearch to get the nearest neighbors.

3 days ago | 0

Answered
How to make Motor Power Loss Map from efficiency map ?
load('Motor_Map.mat') ; figure h1 = pcolor(Motor_RPM,Motor_Trq,Eff') ; % Plot Motor Efficiency Map h1.EdgeColor = 'none' ; ...

3 days ago | 0

Answered
In a 6x6 square matrix A, how to select elements in i-th row with A(i,j) ruled out
A = [0 0 -1 1 1 1 0 0 0 0 1 0 1 -1 0 1] ; B = zeros(size(A)...

4 days ago | 0

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Answered
How to replace duplicate element to 0 in matrix for every rows
A = [1 1 1 2 2 2 3 3 4 4 5 5 5 1 2 2 3 3 3 4 4 4 5 5 6 6 1 1 1 1 2 2 3 4 5 5 5 6 6] ; B = zeros(size(A)) ; for i = 1:size...

4 days ago | 0

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Answered
save index of find- loop in a table
C = cell(143,1) ; for i=1:143 [row,col]=find(HQ10000_WH(i,[1:10498])>0,1,'first') C{i} = col ; end

4 days ago | 0

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Answered
Order Points for plotting
load('A.mat') ; x = A(:,1) ; y = A(:,2) ; n = length(x) ; iwant = zeros(n,2) ; i = 1 ; iwant(i,:) = [x(i) y(i)] ; x(...

4 days ago | 0

Answered
How to plot a stem 3d plot with base map
REad about stem3, plot, legend

5 days ago | 0

Answered
Why wont my loop populate pre-allocated matrix?
clc clear all close all syms V Z T=[277.15 287.15 297.15 307.15 317.15 327.15 337.15 347.15 357.15 367.15 381.15 401.15 421....

5 days ago | 0

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Answered
3 vector to surface 3d plot?
Refer this link: https://in.mathworks.com/matlabcentral/answers/412639-creating-surface-plot-from-a-matrix-with-3-columns?s_tid=...

5 days ago | 0

Answered
Divide a column of a datafile through a constant value
txtFiles = dir('*.txt') ; % you are in the folder of text files N = length(txtFiles) ; % total files % loop for each file ...

6 days ago | 1

Answered
how to use quiver3 plot vectors at zero points(i want to set the start point of the vectors all at zero points)
Simple, make x,y,z matrices as zeros matrix. [x,y,z]=meshgrid(-3:1:3,-3:1:3,-3:1:3); dx=x; dy=y; dz=z; r=(dx.^2+dy.^2+dz.^...

6 days ago | 1

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Answered
How to perform the following operation ( M(:,c)=M(:,c)+thr*M(:,c).*(N*2-1); )in each column in matrix M?
thr=.05 ; M = rand(14,128) ; N = rand(14,1) ; for c=1:128 M(:,c) = M(:,c)+thr*M(:,c).*(N*2-1); end

8 days ago | 0

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Answered
find data with same name
You can get the deaths of each country using: T1 = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/100...

8 days ago | 0

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Answered
how to use read variable
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1005205/Population_data.xlsx') ; T.Population_mill...

8 days ago | 0

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Answered
Multiple color bar graph in Matlab
x=[1 2 3] ; y=[10 20 30] ; c = {'r','g','b'} ; figure hold on for i = 1:3 bar(x(i),y(i),c{i}) end

9 days ago | 1

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Answered
plotting a 2D truss
Refer this: https://in.mathworks.com/matlabcentral/fileexchange/86548-matlab-truss-finite-element-analysis If not attach your ...

9 days ago | 0

Answered
Index in position 2 exceeds array bounds. Index must not exceed 1. Error in FYP2 (line 154) h = plot (f ,Range(:,c));
Your RANGE is a array of size 991x1 and you are trying to extract more number of elements from it. May be you need to replace Ra...

9 days ago | 0

Answered
Addition of two different sized arrays
You may resize them to same size using imresize.

9 days ago | 1

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Answered
How to calculate differential equation with trigonometric function?
f = @(x,y) -1./((2./y).*x+x.^2*y.^2.*cos(y)) ; xspan = [0.1 2] ; x0 = 1 ; [x,y] = ode45(f, xspan, x0); plot(x,y)

9 days ago | 0

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