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KSSV


Last seen: Today Active since 2011

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

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Answered
plot textdata with NaN
Read about readtable. T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1002155/owid-covid-data_202...

alrededor de 3 horas ago | 0

Answered
Performing calculations for specific values in a table defined by certain values from another column (Date)
Let T be your table. [c,ia,ib] = unique(T.Date) ; N = length(c) ; theduration = duration(nan(N,3)) ; for i = 1:N Ex...

alrededor de 4 horas ago | 1

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Answered
Convert daily data to monthly data with missing values.
You can fill the missing values using fillmissing. You can resample the data using retime

alrededor de 5 horas ago | 0

Answered
Histogram Not Plotting Correctly
n = 100; x = zeros(1,n) ; for k = 1:n x(k) = randi(5) ; end hist(x,10) Loop is not required. n = 100; x = randi(5,1,...

alrededor de 6 horas ago | 0

Answered
Error using legend (line 263) Element 1 is not a string scalar or character array. All elements of cell input must be string scalars or character arrays.
There is a problem in creating the legend string. I have modififed the code, now error is rectified. But your code is messy. You...

alrededor de 7 horas ago | 0

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Answered
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
The error is simple, you are trying to save wrong number of elements then the LHS is intialized for. A = zeros(5,5) ; % A is ...

alrededor de 7 horas ago | 0

Answered
How to plot 2D location vs corresponding data in MATLAB
REad abour kmeans T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/999455/MATLAB.xlsx') x = T.(1) ...

alrededor de 8 horas ago | 0

Answered
Error in T12 (line 35) surf(X, Y, fplot) and I have no idea what I was wrong
clc clear close all syms x y f = @(x,y)(x.^2+y.^2+x.*y-12*log(x)-10*log(y)); fx = diff(f,x); fy = diff(f,y); [xc,yc] = so...

alrededor de 22 horas ago | 0

Answered
Too many input arguments using square
Code is working fine. It seems you have introduced a variable named square. Clear it and then run the function. REad about clear...

1 día ago | 0

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Answered
How to calculate inverse of 3d array matrices with size 3*3*18 ?
A = rand(3,3,18) ; [m,n,p] = size(A) ; B = zeros(m,n,p) ; for i = 1:p B(:,:,i) = inv(A(:,:,i)) ; end

1 día ago | 0

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Answered
plot 2D array using imagesc ?
REad about subplot

1 día ago | 0

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Answered
How can I filter an entire row using a date?
You have varities of cunction to do that. Cnvert the required datetime column into class datetime. This class has the informatio...

1 día ago | 0

Answered
plot gridded data only inside shapefile
Read about inpolygon.

1 día ago | 0

Answered
Draw 3D elliptic cylinder with given parameters
You may proceed like this: a = 4.5368 ; b = 5.6885 ; C = [0.5351, -5.2359] ; L = 21.98 ; u = linspace(0,2*pi) ; v = lins...

1 día ago | 1

Answered
Merge rows based on conditions in the coulmns
data = importdata('dmp.txt') ; [c,ia,ib]= unique(data(:,[1 end]),'rows','stable') ; N = length(c) ; iwant = cell(N,1) ; f...

1 día ago | 0

Answered
Apply a color map to a 2d line
Read about patch x = linspace(1,10,15); y = sin(x); y(end) = NaN; c = y; figure patch(x,y,c,'EdgeColor','interp'); colo...

1 día ago | 0

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Answered
What do I have to do if I want to derivative and continue multiplying?
A = [1 2;3 4;5 6]; B = [7 8;9 10;11 12]; D = A'*gradient(B)

1 día ago | 0

Answered
Write a function with input .xls file to read
To load the excel data into matlab use readtable To compare values you can use isequal, ==, etc.

1 día ago | 0

Answered
How can I convert surface plot into STL format file?
[X,Y,Z] = peaks(100) ; surf2stl('test.stl',X,Y,Z)

2 días ago | 0

Answered
How can I represent points and lines in 3 dimensions?
It is in 3D, you need to change the view. view(3)

2 días ago | 1

Answered
How to visualize a table in a color dot plot?
Let A be your matrix. [m,n] = size(A) ; [X,Y] = meshgrid(1:m,1:n) ; figure hold on plot(X(A<0),Y(A<0),'.b') plot(X(A>...

5 días ago | 2

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Answered
How to convert a Year Month and Date to Day Number?
Load the data from csv file into MATLAB using readtable You can convert the dates into date numbers using datenum

5 días ago | 0

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Answered
How to get column values using indexes
LEt A be your matrix. C5 = A(:,5); % 5th column M1 = A(C5==1,1:4) ; M2 = A(C5==2,1:4) ;

5 días ago | 0

Answered
How to plug in and solve for algebraic equation?
t = linspace(0,1) ; z = 15*(1+(4.1*0.064)/1000*(15/150)^(2/3)*t.^(5/3)).^(-3/2) ; plot(t,z)

5 días ago | 0

Answered
How can I implement KNN ? I want to have user input and data from excel sheet compared.
Say it loudly today that your function is knnsearch. weight = [971; 1401; 105; 210] ; age = [15; 30 ; 25 ; 67] ; data = t...

5 días ago | 0

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Answered
How can I detect the centroid or center of segmentation image ?
Read about regionprops

5 días ago | 0

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Answered
creating a three-dimensional array from three array with different size
a = rand(1,8) ; b = rand(1,7) ; c = rand(1,6) ; iwant = cell(3,1) ; iwant{1} = a ; iwant{2} = b ; iwant{3} = c ; iwa...

6 días ago | 1

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Answered
I want to loop for files in workspace
s = whos ; for i = 1:length(s) s(i).size end

6 días ago | 0

Answered
How to solve this error?
The error is clear. It seems you have an array of size 1x17 and you are trying to extract elements more than present in it. % ...

6 días ago | 0

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Answered
Vectors must be the same length
p1=plot (Distanz(i,:) , [Z(i,:) ; HQextrem(i,:); HQ5000(i,:); HQ10000(i,:)]);

6 días ago | 0

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