KSSV
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8.890 total contributions since 2011https://sites.google.com/site/kolukulasivasrinivas/
Professional Interests: Mathematical Computing
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How to find area with trapezoidal method on matlab?
Read about the function trapz.
circa 17 ore ago | 0
Creating a grid from a 2D scatter plot of vectors
Let x, y, xvel, yvel be your data. m = 100 ; n = 100; x = linspace(min(x),max(x),m) ; y = linspace(min(y),max(y),n) ; [X,...
circa 17 ore ago | 1
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help with slope field in matlab
Create x, y vectors using linspace Creat X, Y matrices using meshgrid with x, y vectors as input. Substitute X, Y in your for...
circa 17 ore ago | 0
Mapping a matrix to another matrix
A=[3;7;8;9;2;10]; B=[4,6;1,2;3,5]; C = A(B)
circa 19 ore ago | 0
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Relationship between (i & j) of a nested for loop and (x & y) coordinates?
It moves from bottom to top and left to right. Check with below: nx = 10 ; ny = 10 ; figure hold on for i = 1:nx for j...
circa 20 ore ago | 0
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Plotting contours in matlab
You have to increase the number of points while using linspace. Now defualt it is 100. n = 500 ; % change this value xv = li...
circa 20 ore ago | 0
Unrecognized function or variable 'row'.
row = 0 ; for angle =0:pi/10:2* pi row = row +1; degrees (row, 1) = angle*180/pi; sineAngle( row, 1 ) = sin (a...
circa 21 ore ago | 0
Can i get the coordinate of pixels(x,y) from superpixel labels in image??how??
Yes, you can get...use the function find. Read about the function find.
circa 21 ore ago | 0
Vectorise matrix element multiplication
If Z is a matrix. You can replace the loop: for c = 1:q h = h*Z{combo_matrix(rand_index,c)}; end with c = 1:q ; ...
circa 21 ore ago | 0
'syms' requires Symbolic Math Toolbox. Error in Solve_ergodic_ctmc (line 1) syms p1 p2 p3 p4 p5 p6 I am using trial version Help?
You need to have symbolic toolbox downloaded. Check which syms This should show the toolbox. I am not sure symbolic tool box...
circa 21 ore ago | 0
Create a row vector named x that starts at 1, ends at 5, and each element is separated by 0.5.
iwant = 1:0.5:5 ; Read the documentation please.
circa 21 ore ago | 0
help me get the the Coefficient of Determination
Read about fitlm. https://in.mathworks.com/help/stats/coefficient-of-determination-r-squared.html
circa 22 ore ago | 0
How to Incorporate ARCGIS map in MATLAB?
Export the arcgis map into geotiff and you can read geotiff file in MATLAB using goetiffread or readgeoraster. IT can be done.
circa 23 ore ago | 0
define function to data set
x = importdata('x.txt') ; y = importdata('y.txt') ; y = log(y) ; p = polyfit(x,y,2) ; yi = polyval(p,x) ; plot(x...
circa 23 ore ago | 0
how to make a loop for condition?
G = 6 ; % number of cluster ind = cell(G,1) ; C = cell(G,1) ; for i = 1:G ind{i} = idx == i; C{i} = dataarea1(...
circa 24 ore ago | 1
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Using while loop and nested if statement develop a program to satisfy the following condition
This is your home work...you have to do it on your known. REad about mod to know whether number is even or odd. if mod(n,2)==0...
2 giorni ago | 0
Trying to produce a meshgrid 3D plot using surf graphs, error using *
Read about element by element operations. x = 0:1:100; y = 0:10:1000; [X,Y]=meshgrid(x,y); Z=(X-X.*Y)./(X+X.^2+Y+X.*Y) ; ...
2 giorni ago | 0
Correlation between multiple columns of table
iwant = zeros(2,2,[]) ; count = 0 ; for r = 2:3 for p = 6:7 count = count+1 ; iwant(:,:,count) = corr...
5 giorni ago | 0
Making 3d array using 2d arrays and how to do that
files_jan = dir('S5P_OFFL_L2__CH4____2019*.*'); h = zeros(215,3245,438); for j = 1:438 temp = ncread(files_jan(j).name,...
5 giorni ago | 0
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Plot a function which contains a variable parameter
It is your home work....read about for loop and aray indexing in MATLAB. Given eblow a demo example. Extend this to your case. ...
5 giorni ago | 0
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Upload every n file to matlab
[file_list, path_n] = uigetfile('.txt', 'Multiselect', 'on'); filesSorted = natsortfiles(file_list); if iscell(filesSorted) ...
5 giorni ago | 0
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Need exact co-ordinate points for an irregular shape
If I is your binarized image. [y,x] = find(I) ; idx = boundary(x,y) ; x = x(idx) ; y = y(idx) ; The above gives the coor...
5 giorni ago | 0
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Extract runs of values from cell array
iwant = C(~cellfun('isempty',C))
6 giorni ago | 0
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Create a matrix out of single values if a for loop?
r = 0.5; a = 0; b = 5; n = 3 ; p=[r + (a-2*r)*rand(n,1),r + (b-2*r)*rand(n,1)]; H = zeros(1,[]) ; count = 0 ; for i = 1:...
6 giorni ago | 0
| accepted
How to convert arc circle plot into binary circle?
R = 1; th = linspace(0,2*pi,1000) ; x = R*cos(th) ; y = R*sin(th) ; xi = linspace(-2,2,100) ; yi = linspace(-2,2,100...
6 giorni ago | 0
| accepted
Why do I get a wrong answer when I use FIND function in this case?
Replace the line: inActive = find(G_dmg.Nodes.Load==-inf); with idx = isinf(G_dmg.Nodes.Load) ; inActive = find(sign(G_dmg...
6 giorni ago | 0
Load Map text file with X and Y coordinates, want to plot those coordinates and plot the vehicle dimensions inside the plot
T = readtable('M1_layout.txt') ; pos = [T.(2) T.(3)] ; plot(pos(:,1),pos(:,2),'.r')
6 giorni ago | 1
I want to generate Heatmap for irregular Time series data
T = readtable('dat.csv') ; x = T.(1) ; x(1) = [] ; x = datetime(datestr(x)) ; y = table2array(T(1,2:end)) ; data = tabl...
7 giorni ago | 0
Reading data from google spreadsheet
Read about webread. https://in.mathworks.com/help/matlab/ref/webread.html
7 giorni ago | 0
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