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plot 2d matrix
Assume u matrix is A % bar(A','stacked')

3 years ago | 0

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Is there a better way to solve this multidimensional array?
For the first averaging % temp_mean = nanmean(M,4); For the 2nd annual avg use % A=reshape(M,19,3,6,siz...

3 years ago | 0

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How to keep equal distancing between markers while moving??
Since you are in a periodic space, scaling the angle will not preserve the distance, you should use addition ( translate the ang...

3 years ago | 0

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Using Explicit Finite Difference Method to Determine the Time at which Unsteady State Ends - 1D Heat transfer
Your dicretization much satisfy the stability condition since the explicit scheme is conditionally stable. Moreover, The error m...

3 years ago | 0

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Vectors must of same length while plotting
You have t1 which started by 60 length then added 1 then 1 more plotted with 62 length. Whereas x1_t3 started with 60 then add 1...

3 years ago | 0

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how to find area under the curve ?
Use polyarea(x,y); you need to have a polygon; That is, ur first point must by ur lasr point. You can do so by adding this to ...

3 years ago | 0

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min function on two arrays
% dS=min([cA(i+1,:),cB(i+1,:)])

3 years ago | 0

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Answered
Concatenate variables with similar names
@Ricardo Duarte Here is a trick, you will save all your workplace into one variable b; then loop over all of them to take whose ...

3 years ago | 0

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Scatter plot with colorbar showing density of points
You can for example measure the distance between all the coordinates, then take the inverse of minimum distance or average of al...

3 years ago | 1

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How to combine n cell arrays into one giant one?
I think you need to loop a bit since you have cells of cells. Let A and B are ur outer cell matrices, data and labels ...

3 years ago | 0

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Convert datetime to default format
% Use 'dd-MMM-uuuu HH:mm:ss'

3 years ago | 0

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How to find the 12th highest value for every year
Since you already sorted them, what you need to do now is call the first highest 12 as follows % Assuming the matrix is...

3 years ago | 1

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Indexing vectors in a cell matrix with for loops?
if true % You can either use this A{1}(1:3,:) %to extract the first 3 rows of the 1st matrix, and the same for all. ...

3 years ago | 0

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Answered
How to check the complementary time-dependent term of differential equations.
% Try this function [T1,Y1] = ode_param_sample1() TSPAN = [0 pi/2]; IC = 1; tv = linspace(0,pi/2,10); ftv = si...

3 years ago | 0

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How can call a vector element using index in the condition of if_else loop?
% A faster way R(m,1)=randi([5 40],length(m),1); R(n,1)=randi([5 40],length(n),1); R(o,1)=randi([5 40],length(o),1); ...

3 years ago | 0

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How can call a vector element using index in the condition of if_else loop?
% Try this R=P(:,6); m =find(R==40); n =find(R==25); o =find(R==15); p =find(R==8) for k= 1:6160 if ismember(k,...

3 years ago | 0

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Question

RL in dynamic environment
I am trying to apply RL in marine environment. An example is when a fish swims toward its altimate goal, it should avoid bad wea...

3 years ago | 1 answer | 0

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How do i turn my 4D matrix into a 3D matrix
I think you cannot convert 4D matrix into 3D if non of the dimensions is equal one. If A is of size (100×50×1×20) lon, lat, ...

3 years ago | 0

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Exporting a 3D array to python
Ths simplest way is to export it as .dat file where python can read it too. % example x = rand(100) save file.dat x -a...

3 years ago | 1

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How to remove horizontal lines as plotting 0-360 degree map
Make sure to clear the figure before plotting because the coast.mat does not have these lines.

3 years ago | 0

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Given an integer number n (0<=n<10000), write a code returning the difference between the product of its digits and the sum of its digits.
% check this a = 4321; b=str2num(num2str(a)'); diff = abs(sum(b)- prod(b))

3 years ago | 0

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How to break loop when successive values are too close
check this example; % examle tol=1e-4 xold=1e10 for i =1:100 xnew = .... if abs(xnew-xold) < tol break end xold=...

3 years ago | 0

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Answered
Read NaN data from excel file
click on import and choose the xls file

3 years ago | 1

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Plot contours using discrete data points
% try this contour(X,Y,Z) or % this contourf(X,Y,Z)

3 years ago | 0

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How to plot streamlines for a fea unstructured mesh with given u,v velocities?
% try quiver(x,y,u,v)

3 years ago | 0

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Saving output of a for loop for each iteration
% code u=unique(condIds,'stable'); for ii = 1:length(u) myTrials{ii} = find(condIds == u(ii)); map = d.mkSal...

3 years ago | 0

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putting a threshold into array values
Assume your matrix is A, and b is the threshold % code B= A(A(:,2)>b,:);

3 years ago | 1

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How can I subtract the absolute value of the original image from the absolute value of the resized image to compare and to find the error in Matlab
No you resize the image it takeout part of the pkls, so the size of the matrices will for sure be smaller. Thus u cannot find th...

3 years ago | 0

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Trying to plot number of iterations vs gridsize for steady state
Hi, this looks like a diffusion equation solved by FDM. you had to mistakes, I already corrected them, n is the step size or gri...

3 years ago | 0

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How to keep constant weights in a Neural Network?
Assume u have 5 inputs 10 ne. (for only on hidden layer). First, generate yourself a random matrix of size 5x10, then save it. ...

3 years ago | 0