# KSSV

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

**Programming Languages:**

Python, MATLAB, Fortran

**Spoken Languages:**

English, Hindi, Telugu

**Professional Interests:**

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**Content Feed**

How to discretize the color in contour bar at smallest possible range?

% Make data for demo [X,Y,Z] = peaks ; vals = [0.000 0.005; 0.005 0.009 ; 0.01 0.05 ; 0.05 0.1; ...

6 hours ago | 0

How to plot the graph for a given signal over a range of frequency

w = [0 pi/8 pi/4 pi/2 pi] ; n = 1 ; x = cos(w*n) ; plot(w,x)

7 hours ago | 0

How to convert cell char array in Table With Column

You can use regexp to extract the data. load('Data.mat') [m,n] = size(Datawebsite) ; predictedClass = cell(m,1) ; maximum...

1 day ago | 0

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Using masking and native string functions to find the longest word in a string.

str = 'Today is a good day' ; s = strsplit(str) ; L = cellfun(@length,s) ; [val,idx] = max(L) ; longest_string = s{idx} ; f...

1 day ago | 1

Maximum perpendicular distance between lines

You have to use the foot of the perpendicular formula. clc; clear all ; x = [120 150 180 210 240 270 300 330 ...

2 days ago | 0

Indexing in complex cell arrays

% Make dummy data for demo a = cell(10,1) ; for i = 1:10 m = randsample(5:10,1) ; b = cell(m,1) ; for j = 1:m...

2 days ago | 0

Generate a Random Point inside a box/plane

A = [0 0] ; % (p,q) B = [1 1] ; % (x,y) a = 50; b = 100; r = (b-a).*rand(1000,1) + a; x = (B(1)-A(1))*rand(100,1)+A(1) ; ...

2 days ago | 0

How to plot This graph in matlab?

I have shown one plot for you reference. You may extend the same to others. x=1.0:0.1:3.0; y=-2.03*10^-3*x.^2+5.76*10^-3*x+1*...

2 days ago | 0

Expected a scalar value. This expression has size [:? x 1].

Try this: % Sample Code tol = 10^-3 ; % can be changed idx = find(abs(sample.data1-values)<tol) ; max_index = idx(1) ;

2 days ago | 1

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Fisher Discriminant analysis - issues with classes

You should use: % Compute mean of each class mu = zeros(k,C); % k = 3 i.e. number rows and C is number of classes i.e.5 for...

2 days ago | 0

How to check whether point is inside high dimensional convex hull?

This link should help you: https://in.mathworks.com/matlabcentral/answers/101396-is-there-a-function-in-matlab-for-detecting-poi...

3 days ago | 0

Extract area of matrices (lat, lon, data) by shapefile. "Requested array exceeds the maximum possible variable size."

You need not to use meshgrid. Already your lon, lat values are in meshgrid. Remove these lines: lat = %MyLat 8000x8192; lon = ...

3 days ago | 0

extractin values from a struct that is in a table

rain = data.rain ; iwant = zeros(length(rain),1) ; for i = 1:length(rain) if ~isempty(rain{i}) iwant(i) = rain{...

3 days ago | 0

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How to find first 10 minimum values in a table array?

You can sort the array you want and arrange the other arrays/ table into that order. You can pick the first whatever number you ...

4 days ago | 0

How do I plot values taken from a for loop function?

clc B0=-0.00356616 ; %Lapse Rate T0=518.67 ; B=B0 ; %Lapse Rate a=0.1:36089.2 ; %Altutude in ft T...

5 days ago | 0

A general question about syntax regarding an Excel file's rows and columns in MATLAB

T = readtable(file,'HeaderLines',1) ; data = table2array(T) ; m = mean(data) [SL: fixed typo]

5 days ago | 0

Filling area common to two inequalities?

clc; clear all; E11=0.041057; E12=-0.117734; E21=0.029952; E22=-0.042564; A=[1 -E22/E11]; D0=E11*E22-E12*E21 ; ...

7 days ago | 0

Approximate Value Using Taylor Polynomial

syms x f = (sin(x).^2).*(cos(x)) T = taylor(f,x,'order',10) double(subs(T,5))

7 days ago | 0

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Index in position 2 exceeds array bounds. Index must not exceed 1. Error in refPose = data.ActorSpecifications(1,46).Waypoints;

Change this line: refPose = data.ActorSpecifications(1,46).Waypoints; to refPose = data.ActorSpecifications(46,1).Waypoints;

9 days ago | 0

reshape help doing PCA when all images contained in one .mat file

Your X data is of size 3240X20, you cannot reshape its each column to size 64X56..because 64X56=3584~=3240. So you need to use y...

9 days ago | 0

Loop variable for readtable arguments

txtFiles = dir('*.txt') ; N = length(txtFiles) ; for i = 1:N T = readtable(txtFiles(i).name) end

10 days ago | 0

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3D matrix transpose and dimensioning

% Data for demo A{1,1} = rand(3,3,3) ; A{2,1} = rand(3,3,3) ; A{3,1} = rand(3,3,3) ; A{4,1} = rand(3,3,3) ; A % Conversio...

10 days ago | 1

How can I split the excuation of multiple for loops ?

for k = 1:10 for i=1:5 X1(i) = do some calculation X2(i) = do some calculation end en...

10 days ago | 0

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Hello, I've got the problem. Can any one help me with that error?

It looks there is some problem with conditions. Check the conditions. Without the conditions it is working fine. syms x(t) Dx...

10 days ago | 0

How to name axes from the script

plot(rand(1,10)) labelx = input('Input Xlabel:') ; labely = input('Input Ylabel:') ; xlabel(labelx) ylabel(labely)

11 days ago | 0

how can I calculate A^n when n is a symbolic positive integer?

A = [1/2,1/2,0,0;1/2,0,1/2,0;1/2,0,0,1/2;0,0,0,1] syms n positive integer A.^n

11 days ago | 0

Find the minimum and maximum value of internal intervals in an array

clc; clear all ; array = [1 2 3 NaN NaN NaN -1 0 5 NaN 0.25 NaN 5 6 7]; M = array' ; idx = isnan(M); ...

13 days ago | 1

Find coordinates of point on original image after using interp2

A=round(rand(10).*10); [nx,ny] = size(A) ; [X,Y] = meshgrid(1:ny,1:nx) ; [x_a,y_a] = meshgrid (linspace(1,10,8),linspace(1...

13 days ago | 0

I have a two column item 1st, Column is child's name and 2nd column is his/her choice of toys. For a given list of Toys I bought, make a table against each toy to each child.

A=["Child1" "Dog" "Child1" "Cat" "Child1" "Babbie" "Child2" "Tractor" "Child2" "Plane" "Child2" "...

14 days ago | 0