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# SALAH ALRABEEI

Last seen: etwa 2 Monate ago Active since 2021

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

3 Monate ago

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

3 Monate ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

3 Monate ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

3 Monate ago

Answered
compare groups of items regarding overlaps
Use [val,ndxA,ndxB] = intersect(A,B) It will give you the overlapping val and its index in both groups A and B

3 Monate ago | 0

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How to get rid of for loop?
function [x_vals,y_vals,I,A]=monte_carlo_syms(x,y,f,g) x_vals=unifrnd(0,1,[200,1]); y_vals=unifrnd(0,1,[200,1]); I = nan*leng...

3 Monate ago | 0

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How to plot vectors
check this <https://www.mathworks.com/matlabcentral/answers/755919-how-to-plot-contour-lines-on-joint-histogram-plot>

3 Monate ago | 0

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Hi, How can I make the axis look like in the attached figures?
See this example x = linspace(-5,5); y = x.^2; plot(x,y) xticks([-5 -2.5 -1 0 0.25 0.5 0.75 1 2.5 10]) text(0,15,'\$\fra...

3 Monate ago | 0

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Updating values in a 2x2 matrix , taking values from result of an iterative operation.
t=1:30; p1= 1-(5/6).^t; p2=1-p1; p3=zeros(1,30); p4=ones(1,30); A=cat(1,p1,p3,p2,p4) A_all= reshape(A,2,2,30)

3 Monate ago | 0

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How can I draw a line over a 2D surface plot in an app?
yline(put the value)

3 Monate ago | 0

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PLOT 2D graph and matrices
You need to define several values of p and s, then find the svds of K for each value of k p and s; See thebexample below ...

3 Monate ago | 0

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How to categorize month/day/year into a period of months
Assuming your date array is called A. This might work Achar = char(A); lab = A(:,1);

3 Monate ago | 0

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Creating Vector from the following matrix
B = reshape(A',1,[]);

3 Monate ago | 0

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How to find value closest to set value after a certain index in a matrix
[N,IN] = min(abs(M/2-x)

3 Monate ago | 0

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If Else simple calculation not working
% Try this mask = Vals.Values <= 50; Vals(mask).Values = Vals(mask).Values + 50; Vals(~mask).Values = Vals(~mask).Va...

3 Monate ago | 0

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How to make a function output a matrix
I think you need only one loop that accomulate the series. I am assuming x and y are sent to the function as vectors, then we cr...

3 Monate ago | 0

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Sorting Column Variable to a Row
Assume your table ( without labels) is of size nx3; where the 1st col is your dates (in numbers), 2nd is your cat, and the 3rd i...

3 Monate ago | 0

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Sum every element in matrix per group
d = unique(b); c = [];for i=1:length(d) c=[c,sum(a(b==d(i)))]; end

3 Monate ago | 0

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Creating NetCDF file with new variables
It depends on your data structure, ( NEMO data, projected coordinates, data gird). Anyway, here is a simple example where ur lon...

3 Monate ago | 0

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Compare two matrix in matlab
Here you can extract those element val that are in both data located at index1 and index2 [val,index1,index2] = in...

3 Monate ago | 0

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Answered
writing a statement to find the acid ratio
AcidRatio = input('your msg')

3 Monate ago | 0

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Extracting all possible vectors from a big vector
check this <https://www.mathworks.com/matlabcentral/fileexchange/24185-partitions>

3 Monate ago | 0

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How to set which part of the code to comment using a variable?
See this example clear clc a=2; b=3 eval(['c',num2str(a),'=',','A',num2str(a),'(',num2str(b),')']) function...

3 Monate ago | 0

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Could someone please tell me How to plot dashline output in bar chart?
Check this <https://www.mathworks.com/matlabcentral/fileexchange/24021-hatch-fill-patterns-plus-color-invert here>

3 Monate ago | 0

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Is there a way to link equations/ expressions such that that the final form is simplified?
It is better to simplify by hand first, for examle let lambda^2 = l then (3N-l)/(N-l)=(2N+N-l)/(N-l)= 2N/(N-l) - 1. The ...

3 Monate ago | 0

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

3 Monate 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 Monate 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 Monate ago | 0

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Answered
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 Monate 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 Monate ago | 0

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