Community Profile # KSSV

Last seen: Today Active since 2011

Professional Interests: Mathematical Computing

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Running time Average of column values
If A is your column array. iwant = cumsum(A)./(1:numel(A))

9 hours ago | 1

Interpolation of 3 dimensional values from a excel file

10 hours ago | 0

How can I run the calculation of one equation through a range of variables in one loop
You can proceed something like below. No need to use loops. i = 1; S_T = 0:3:60 ; TS_T =(deg2rad(S_T));%incline in Radia...

13 hours ago | 0

Alternative way of defining a variable
a = zeros([],1) ; b =[] ; But it depends. What is the requirement?

15 hours ago | 0

How to strrep only certain strings
x = {'e-.00085';'8.5e-4'}; y = strrep(x,'e','')

1 day ago | 0

Sorting cell array based on distance
Read about knnsearch. This will give you the nearest points from a set points for a given point. This will work for you.

1 day ago | 0

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How to get a square matrix out of a augmented matrix?
n = 5 ; A = rand(n) ; % square matrix B = eye(size(A)) ; % Identity matrix Ag = [A B] ; % augemented matrix

1 day ago | 0

How to find yield point and plot strain hardening part?

1 day ago | 0

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How can I get the sea ice concentration data corresponding to the latitude and longitude from the geotiff file?
filename = 'N_20180101_concentration_v3.0.tif' ; [A,R] = readgeoraster(filename) ; % If not try geotiffread [m,n] = size(...

1 day ago | 0

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Movie function with subplots: error "Unrecognized method, property..."
Try replacing the line: [h, w, p] = size(f(1).cdata); % use 1st frame to get dimensions with [h, w, p] = size(M(1).cdata);

1 day ago | 0

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Plot of a Time Variable
As you have data every second, you need to do hourly mean to get 24 values. You have two options. Reshape the data into 24*m; ...

1 day ago | 0

How can I specify maximum and minimum of a parameter inside a loop
minC = 0; maxC = 0; for i=1:50 A(i)=f(i); B(i)=f(A); C(i)=F(B); if C > maxC maxC = C ; ...

2 days ago | 0

plot a table of two columns
If T is your table. To plot use: plot(T.(1),T.(2))

2 days ago | 1

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Write function that returns true if (inputmatrix > 0)
A = rand(5) ; P = A > 0.5

2 days ago | 0

Why isn't the plot showing up? (new on programing)
x = linspace(-10,10,100); y = @(x) (x.^2 + x.^2 + 3.*x)./(x.^2 + 4.*x + 5); % element by elememnt division plot(x,y(x),'r','L...

2 days ago | 0

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How to get the centerline of a binary region
You can get the indices of white pixels using find and to the data you can try fitting a line or quadratic equation using polyfi...

3 days ago | 3

Transforming 4 sets of 1x4 matrix into a 4x4 matrix
zetaliq=zeros(4); for j=1:4 zetaliq(j,:)=(pi/6).*rholiq.*(X1.*m1.*d1^(j-1)+X2.*m2.*d2^(j-1)) ; end zetaliq

3 days ago | 0

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Grouping data into bins and then plotting them
You can calculate the every three hours mean using the fuction retime. Read about it. To see the variation of every hours, stria...

3 days ago | 0

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How to delete some of anonymous variables randomly?
Multiply each variable with a constant array, and assign this contant array with 0 and 1. See to it that, randomly only three 1'...

3 days ago | 0

Array indices must be positive integers or logical values.
%Euler Method %parameters g=9.81; rho=1.2; s=0.00011; m=0.023; Cd=0.9; %Initial Condition V0=0; V=zeros([],1); %I...

3 days ago | 1

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how can I find the maximum value of a parameter running within a loop
maxC = 0 ; for i=1:100 A=f(i) ; B=f(A,i) ; C=f(B,i) ; if C > maxC maxC = C ; Amax = A ;...

3 days ago | 0

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make a matrix out of list
Read about importdata. You can import the data into MATLAB, the data will be a cell array. S = importdata('myfile.txt') ; cel...

3 days ago | 0

How could I write in a vector something in a position different to a given one?
v = [1,2,3,4,5]; idx = 3; iwant = NaN(size(v)) ; iwant(idx) = v(idx)

4 days ago | 1

How to store data when a string condition of another column is met?

4 days ago | 0

Finding coefficients from 4 degree polynomial
Read about polyfit. This will help you to fit the required degree polynomial and also gives you the coefficients. Also have a lo...

4 days ago | 0

black line frame around scatter3
You can draw lines using line. Read about it. Also try box on.

4 days ago | 0

What is the difference between [v' 1] and [v', 1]?
v = rand(3,1) ; [v' 1] [v',1] That is nothing but vector v is increased by one element at the end and the value is 1.

5 days ago | 0

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Split the graph based on a specific value
Let (x,y) be your data. idx = knnsearch(y,mean(y)) ; % this will give index in y which is close to mean(y) % plot plot(x(1:...

5 days ago | 0

Plot Modes of a cylinder in 3D
Have a look on this: https://in.mathworks.com/matlabcentral/fileexchange/34143-meshing-thin-shells-using-four-noded-elements?s_t...

5 days ago | 1

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