jean claude

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all possible combination between matrices
I have 3 matrices with 2 columns but different number of lines, for example; A=[[2,1],[0,6],[4,2]] B = [[0,2],[1,1],[3,4],[0,5...

mer än 3 år ago | 1 answer | 0

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Find a number inside a matrix

mer än 3 år ago | 1 answer | 0

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ARMA(2,2) maximum likelihood estimation
How to estimate ARMA (2,2) like this one : y = delta + phi*(1.5*y(t-1) - 0.5*y(t-2)) + ut - teta*(1.5*u(t-1) - 0.5*u(t-2)) ...

ungefär 5 år ago | 0 answers | 0

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getting new tables from another
hi, how to get table just for smith; a table for william , and a table for johnson ? imagine i have many rows with different co...

mer än 5 år ago | 1 answer | 0

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Finding equal members in a vector
find(x==10)

mer än 6 år ago | 0

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How to implement a Correlated Brownian Motion correctly
here is a clear demonstration <http://www.goddardconsulting.ca/matlab-monte-carlo-assetpaths-corr.html>

mer än 6 år ago | 0

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Error: Z must be a matrix, not a scalar or vector
read <https://www.mathworks.com/help/matlab/ref/meshgrid.html here> you didn't use meshgrid in the right way

mer än 6 år ago | 0

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how to add multidimensional array
if you mean how to create 3D matrix 5*5*5 you can use x(1:5,1:5,1:5)=0 % full of zero here

mer än 6 år ago | 0

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Perform least squares regression to determine the coefficients a and b ussing the manipulation
look <https://ece.uwaterloo.ca/~dwharder/NumericalAnalysis/06LeastSquares/transformations/complete.html here> T=[77 100 185...

mer än 6 år ago | 0

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Correlation Matrix of a 1x1 Structure
first step you have to construct the big matrix then compute the correlation: X=struct2array(here type your structure tit...

mer än 6 år ago | 0

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How to calculate the value of correlation coefficient r using Spearman correlation coefficient test?
if you have the statistics toolbox you can use [RHO,PVAL] = corr(x,y,'type','Spearman')

mer än 6 år ago | 0

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theoric vs empiric PDF & CDF
hello guys, i want to know if there is a better way to compare the empiric PDF to the theoric PDF of a *normal distribution samp...

mer än 6 år ago | 0 answers | 0

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Manipulation Rules for Special Matrice
there is many ways to do it, you can for example assign i rows, j rows in a matrix of ones; then multiply by pi x=ones(4,6)...

mer än 6 år ago | 0

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How do i calculate a sum using a function?
as i understand you want to sum 1+2+...n so you can use function S = Ma_somme(n) S = 0 ; for i =...

mer än 6 år ago | 0

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Plotting data from a table .mat file
x=table2array(your table title); read <https://www.mathworks.com/help/matlab/ref/table2array.html here>

mer än 6 år ago | 0

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multiple vectors histogram plotting
look at this example; it plots this matrix 24x3 load count.dat hist(count) legend('Intersection 1',... 'Intersect...

mer än 6 år ago | 0

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How to save output in different column for each loop
you have to design the dimension of your output matrix, example if it is 10x3 set i(number of rows) and j(number of columns), t...

mer än 6 år ago | 1

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Writing if function to Plot graph?
you can use this code y=zeros(35,1); for x = 1:35 if x < 6 y(x)=2; elseif 6<= x && x<20 y(x)= x...

mer än 6 år ago | 0

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how to handle 'nested' arrays
hi maho, i didn't understand what do you want exactly, but you can read here <https://www.mathworks.com/help/matlab/ref/strsplit...

mer än 6 år ago | 0

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How do i remove the letter a user inputs from a word?
i thisnk it works function [newstr, num] = removeLetter(str, letter) A=double(str); B=double(letter); C=upper(let...

mer än 6 år ago | 0

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How do i remove the letter a user inputs from a word?
function [newstr, num] = removeLetter(str, letter) A=double(str); B=double(letter); numRemoved=0; for i=2:length(A...

mer än 6 år ago | 0

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How do I assign rows of a matrix to an array?
B= num2cell(A(2:3,:))

mer än 6 år ago | 1

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plotting n paths of geometric brownian motion
hello, i wanna plot say 30 paths of gbm, my problem is how to plot those paths cause my matrix (X1) is 3 dimensions dt=...

mer än 6 år ago | 1 answer | 0

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how can i store a value of a calculation in a loop
try this put it just before end of the loop quantvalue=[]; quantvalue=[quantvalue quant];

mer än 6 år ago | 0

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display while loop output as an array
function [output] = hailstone_sequence(n) output=[n]; h = 1; while(n~=1) if n==1 return elseif mod(n,2) ...

mer än 6 år ago | 0

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MATLAB import tool (Import as a string array)
hello this is simple you have to use importdata function change fichier by your fichier-title mydata = importdata('fichier....

mer än 6 år ago | 0

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How can I use "OR" in this situation? I want it to show if x==2 or d~=0
if x==2 || d~=0 disp('Given value is a prime!') end

mer än 6 år ago | 0

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left outerjoin without changing initial order in the output
i want to make outerjoin in such way to have output C keeping the same order as the key variable, precisely my key variable is...

ungefär 7 år ago | 1 answer | 0

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how to match daily returns ?
hello everyone, i have the dependent variable with daily returns y (1 column ), in the other hand daily returns for the independ...

ungefär 7 år ago | 1 answer | 0

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swiching elements of same vector
hi everybody, i have vector X=[ 20; 0; 0;0; 100; 0;0;0;50]; i would like to have X=[0;0;0;0;20;0;0;0;100]; so ...

ungefär 8 år ago | 2 answers | 0

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