# SALAH ALRABEEI

**Statistics**

RANK**701**

of 273,518

REPUTATION**90**

CONTRIBUTIONS

**1** Question

**56** Answers

ANSWER ACCEPTANCE **
100.0%
**

VOTES RECEIVED**5**

RANK

of 18,459

REPUTATION**N/A**

AVERAGE RATING**0.00**

CONTRIBUTIONS**0** Files

DOWNLOADS **0**

ALL TIME DOWNLOADS**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Content Feed**

Find smallest Eigenvalue and the corresponding eigenvector.

You can find it here

8 months ago | 0

Why my graph not same as research paper?

You have two mistakes here s=(exp(p_0)*T); The three s in the code should be this s=(exp(-p_0*T));

8 months ago | 0

How to find x value for certain y value of a lineplot in matlab

You can find the the EV from the index of p value. Example; a=[4,2,3,5,6,7] b = a.^2 Now, to find what is a at b= 9! inx...

8 months ago | 1

Integration takes time too long

Matlab is not good enough to symoblically ( analyitcally) integarate or solve such complex equations). If you want the the analy...

8 months ago | 0

how to find the indices after sorting columns of a matrix

If I got you correctly, I think you want you want this clear A = magic(4) [n,m]=size(A) [As,Cur_ind]=sort(A,'ascend') Or...

8 months ago | 0

| accepted

Solved

Vector creation

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

1 year ago

Solved

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...

1 year 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 ...

1 year 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:...

1 year ago

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

1 year ago | 0

| accepted

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...

1 year ago | 0

How to plot vectors

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

1 year ago | 0

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...

1 year ago | 0

| accepted

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)

1 year ago | 0

How can I draw a line over a 2D surface plot in an app?

yline(put the value)

1 year ago | 0

| accepted

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 ...

1 year ago | 0

| accepted

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);

1 year ago | 0

How to find value closest to set value after a certain index in a matrix

[N,IN] = min(abs(M/2-x)

1 year ago | 0

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...

1 year ago | 0

| accepted

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...

1 year ago | 0

| accepted

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...

1 year ago | 0

Sum every element in matrix per group

d = unique(b); c = [];for i=1:length(d) c=[c,sum(a(b==d(i)))]; end

1 year ago | 0

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...

1 year ago | 0

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...

1 year ago | 0

| accepted

Extracting all possible vectors from a big vector

check this <https://www.mathworks.com/matlabcentral/fileexchange/24185-partitions>

1 year ago | 0

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...

1 year ago | 0

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>

1 year ago | 0

| accepted

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 ...

1 year ago | 0