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KSSV


INCOIS

5,457 total contributions since 2011

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

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Answered
what is the best fit for a set of data?
Refer this: https://in.mathworks.com/matlabcentral/answers/409493-how-to-fit-a-custom-equation

5 hours ago | 0

Answered
How do I use a while loop to keep asking for input of even numbers?
prompt = 'Enter a number:'; S = input(prompt) ; if mod(S,2) S = input(prompt) ; end

7 hours ago | 0

Answered
Multiplying Certain Elements in an array- Construct a matrix, s3, by multiplying the first 10 elements of s by 3
s = 0:100 ; s3 = s(1:10)*3 ; Read about MATLB matrix indexing. https://in.mathworks.com/company/newsletters/articles/matrix-in...

7 hours ago | 1

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Answered
How to find entropy of an image?
https://in.mathworks.com/matlabcentral/fileexchange/28692-entropy

7 hours ago | 0

Answered
2d Coordinate rotation in clockwise direction
th = pi/4 ; R = [cos(th) -sin(th) ;sin(th) cos(th)] ; Multiply your points with the above R. Read about rotation matrix: https...

8 hours ago | 0

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Answered
Repalce zero element by the number before it ?
N=[ 0 1 4 5 6 7 0 10 0 0 0] ; M = N ; idx = find(N==0) ; % get the indices of zeros...

1 day ago | 1

Answered
find peaks in a mesh plot
Read about max ..It gives indices also....

1 day ago | 0

Answered
Plot a function of three variable
f = @(x,y,z) x.^2+y.^2+z.^2-3*x.*y.*z ; x = linspace(-1,1) ; y = linspace(-1,1) ; z = linspace(-1,1) ; [X,Y,Z] = ndgrid(x,y,...

2 days ago | 0

Answered
How do I bind a specific value to a color using colormap?
Refer this link for the same: https://in.mathworks.com/matlabcentral/answers/375166-how-to-customize-a-colorbar-of-contourf-plo...

3 days ago | 0

Answered
Edit data labels without regenerating plot
x = 0:pi/36:2*pi; y = sin(x); plot(x,y) T = gobjects(8,1) ; for i = 1:8 textstr = sprintf('P%g',i); T(i) = text(i/...

3 days ago | 0

Answered
how to extract a number from file name in folder
Read about dir . This will give you all the file spresent int he foder. YOu can give extension and extract only those files.

3 days ago | 0

Answered
How can I calculate the area between two wawe lines of two agents?
Read about polyarea, trapz

3 days ago | 0

Answered
Cell array: select cells based on length
C = cell(5,1) ; C{1} = rand(1,3) ; C{2} = rand(1,3) ; C{3} = rand(4,3) ; C{4} = rand(1,3) ; C{5} = rand(4,3) ; row = cel...

3 days ago | 0

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Answered
Cannot get .tif image to display. Following are image info
YOu should use fread to read the data. Read about fread. Also have a look on Tiff https://in.mathworks.com/help/matlab/ref/tiff...

3 days ago | 0

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Answered
remove weekends and holidays data from excel file
% Read data T1 = readtable('ABC.xlsx','sheet',1) ; T2 = readtable('ABC.xlsx','sheet',2) ; % Get dates common in both idx =...

3 days ago | 0

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Answered
How to detect clear bubbles
I = imread('download.jpg') ; R = I(:,:,1) ; G = I(:,:,2) ; B = I(:,:,3) ; [y,x] = find(R==255) ; imshow(I) hold on pl...

3 days ago | 0

Answered
What next in the code
The error clearly says that you don;t have the function/ code named Naturalfreq.m . You have to donwload and save it and use.

3 days ago | 1

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Answered
Image is too big to fit on screen; displaying at 13%? How to fix it
Turn off the warning.... warning('off', 'Images:initSize:adjustingMag');

3 days ago | 0

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Answered
how to plot rectangles from csv data
A = [1 31 4 9 12 56 17 12 47 43 56 45 43 25 50 14] ; R = 1 ; th = linspace(0,2*pi) ; x = R*cos(th) ; y = R*sin(th) ...

3 days ago | 0

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Answered
How to find points inside a country border
Read about inpolygon

3 days ago | 0

Answered
How to automate selecting specific xyz map data from an existing xyz data set?
Read about inpolygon. If you have the vertices of closed region/ polygon; ou can get the points lying inside the region.

3 days ago | 0

Answered
How to create a circles (smallest and biggest circle) based on points in an image given, then find the center and radius?
YOu can try to fit a circle with the coordinates (x,y) you have. Check the below code: function [xc,yc,R,a] = circfit(x,y) ...

3 days ago | 0

Answered
How to fill matrix in for loop?
z=-1:0.001:0; ri=0.7; R=ri-z*(ri-1); [R,Z] = meshgrid(z,R) ; r = R-Z.*(R-1) ;

7 days ago | 1

Answered
Read multiple csv files from a folder and not all csv files
fid = fopen('myfile.txt','rt') ; % open your text pad file S = textscan(fid,'%s','delimiter','\n') ; S = S{1} ; ...

8 days ago | 0

Answered
Vectors must be the same length error
YOu need to rethink on your code. bny = input('Insira o codigo binario a codificar: ' ,'s'); idx = ismember(bny,'01'); assert...

8 days ago | 0

Answered
find the index of Curve intersections
Use knnsearch. This will give you the exact point if exists...or the nearest point to the intersection.....

8 days ago | 0

Answered
How to open a .p file in matlab ?
You cannot open a .p file...you can only use it......

8 days ago | 0

Answered
Parfor loop with 3D structure matrix
No loops and parfor required...have a look on reshape. A = rand(4697,1,1600) ; nx = 77 ; ny = 61 ; nt = 1600 ; B = resh...

8 days ago | 0

Answered
How to import 3GB netcdf file into matlab
YOu are trying to load the enitre data from netCDF into MATLAB..this is not the right option..first get familiar with the data.....

9 days ago | 0

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