# KSSV

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

**Programming Languages:**

Python, MATLAB, Fortran

**Spoken Languages:**

English, Hindi, Telugu

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**Content Feed**

Extracting Histogram data for plot generation

h = histogram(rand(100,1)) data = h.Data ; BinEdges = h.BinEdges ; Values = h.Values ;

6 days ago | 0

Trying to find pi using when loops to a tolerance of 10^-4.

Try somewthing l;ike this: % summation of pi = 4 * (-1^(k+1))/(2*k-1) ; n_digits = 10 ; iteration = 0 ; % starting iteratio...

7 days ago | 0

hi how can i evaluate the function below from x=1,x=2 into a step of 0.1 y=x/(x2+1)

x = 1:0.1:2; % Define the range of x with a step of 0.1 y = x./(x.^2 + 1); % Evaluate the function plot(x,y)

7 days ago | 0

convert a .mat to excel file

matFiles = dir('*.mat') ; N = length(matFiles) ; T = table; for i =1:N load(matFiles(i).name) ; T.(i) = val ; ...

11 days ago | 0

Solving a system of Non Linear Differential Equations

This is the code..I am getting hight values...you may check and modify the code. tspan = [0 1]; y0 = [0 0 100]; sol = ode45(...

11 days ago | 0

Why does it give error in spectrogram plotting?

Replace data = @(filename)fullfile('D:\Rahul\Data_tokamak\data&plot\data_paper1\H-mode data\H-mode bistable model\set1_neoAno_r...

12 days ago | 0

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Plot a time series plot in customized rectangle

plot(time,pm_1,'b','LineWidth',1); % You may change line width

12 days ago | 1

Hi, I'd like to see the temperature on a surface map of lon (-20 20) and lat (-10 10).I'd like to have an idea so that this script gives me a better visual like on the figure?

You need to make the values lying outside the given scattered points to NaN. For outside values, the function will extrapolate w...

18 days ago | 0

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fsurf(sym(1), [0 1 0 1], 'y', 'EdgeColor', 'none'), this is fun for z axis , how about y axis?

What you gave is similiar to: x = linspace(0,1,35) ; y = linspace(0,1,35) ; [X,Y] = meshgrid(x,y) ; Z = ones(size(X)) ; ...

18 days ago | 1

Using the clear command in functions?

Becuase clc, clear clears your input variables which are saved in the workspace. You need not to use it inside the function. ...

1 month ago | 1

Error using surf Z must be a matrix, not a scalar or vector.

You have to use X and Y i.e matrix in the calculation Z. x=(0:0.1:pi); y=(0:0.1:pi); [X, Y]= meshgrid(x,y); Z=(sin(0.3*X)+(...

2 months ago | 0

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How to fill/interpolate missing data to nearest geospatial coordinate?

% Prepare dummy data [X,Y] = meshgrid(1:10,1:10) ; Z = rand(size(X)) ; % Make random nan's idx = sort(randsample(numel(X...

2 months ago | 0

Loading a .fig file in MATLAB without losing information

h1 = openfig('test1.fig','reuse'); % open existing/ saved figure ax1 = gca; % get handle to axes of figure h2 = figure; % cr...

3 months ago | 1

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How to get the plot x&y when a user clicks on a point I have plotted

REad about getpts

3 months ago | 0

I wonder how to make the lines thicker in rlocus graph

sys = tf([2 5 1],[1 2 3]); rlocus(sys) set(findall(gca, 'Type', 'Line'),'LineWidth',5);

3 months ago | 0

How to get output of multiple variables in xls

Let the variables be x, y, z. T = table(x,y,z) ; writetable(T,'text.xlsx')

4 months ago | 0

FE triangle mesh without the mesh node connections visible

h1 = trisurf(meshConnections, X, Y, Z, permittivity); h1.EdgeColor = 'none' ;

4 months ago | 0

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Searching a string on a table to get time

You may try using functions like contains, strcmp T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/...

4 months ago | 0

Why dot indexing is not supported for variables of this type using EMD method in MATLAB R2019a version ? What can I do?

It seems IMF is not a sturcutre. Check class(IMF) If it is double. Try max(IMF)

5 months ago | 0

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How to plot the graph from the data table as attached.

load matlab.mat ; x = LineProfile.(1) ; y = LineProfile.(2) ; plot(X,y,'r') hold on plot(x,smooth(y),'b')

5 months ago | 0

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Matlab Error (Z must be a matrix, not a scalar or vector.)?

P_air = .1:.1:4; alpha = .0125:.0125:.5; [alpha,P_air] = meshgrid(alpha,P_air); T_air_dry = (1/0.0408)*log((0.42*P_air.*(1-al...

5 months ago | 1

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I am having a problem using corelation with table variables.

M(k,p) = corr(data_array1.(1),data_array2.(1)) OR M(k,p) = corr(table2array(data_array1),table2array(data_array2))

5 months ago | 1

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How to assign a mean of a variable to every year ?

T = readtable(myfile) ; [c,ia,ib] = unique(T.(1)) ; % gewt unique values of years N = length(c) ; iwant = zeros(N,2) ; ...

5 months ago | 1

Finding the roots for an equation

syms x a eqn = x^4+5*a*x^2+6*a==0 ; s = solve(eqn,x)

5 months ago | 0

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Right hand side of an assignment into a table must be another table or a cell array.

bias = table('Size',[1,11], 'VariableTypes', {'datetime', 'string', 'double', 'double', 'double', 'double', 'double', 'double', ...

6 months ago | 0

Filtering Values in Matlab in the Same Matrix Size

A = [2 5 8; 2 6 7; 1 9 5] ; A(A<=5) = 0

6 months ago | 0

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How do you plot a line on a function defined by colors?

[X,Y,Z] = peaks(100) ; contourf(X,Y,Z)

6 months ago | 0

Plotting a cartesian equation with an imaginary component of 0*1i

c = 4+1i*0 ; plot(real(c),imag(c),'*r')

6 months ago | 0

| accepted

How can I generate a 3D torus taking a function as the torus shape?

R1 = 3 ; R2 = 1 ; u = linspace(0,2*pi-eps) ; v = linspace(0,2*pi-eps) ; [u,v] = meshgrid(u,v) ; X = (R1+R2*cos(v)...

6 months ago | 0

Interpolate MATLAB geoscatter/geoplot data to estimate average wind speeds in the Gulf of Mexico?

REad about scatteredInterpolant, griddata.

6 months ago | 0