Community Profile

photo

jean claude


Last seen: oltre 3 anni fa |  Attivo dal 2016

Followers: 0   Following: 0

Contatto

Statistiche

All
  • Quiz Master
  • Knowledgeable Level 2
  • Puzzler
  • Leader
  • Speed Demon
  • Creator
  • Scholar
  • Promoter
  • Commenter
  • Solver
  • Thankful Level 3
  • First Answer

Visualizza badge

Feeds

Visto da

Domanda


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...

oltre 3 anni fa | 1 risposta | 0

1

risposta

Domanda


Find a number inside a matrix

oltre 3 anni fa | 1 risposta | 0

1

risposta

Domanda


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)) ...

circa 5 anni fa | 0 risposte | 0

0

risposte

Domanda


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...

oltre 5 anni fa | 1 risposta | 0

1

risposta

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

oltre 6 anni fa | 0

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

oltre 6 anni fa | 0

Risposto
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

oltre 6 anni fa | 0

Risposto
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

oltre 6 anni fa | 0

Risposto
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...

oltre 6 anni fa | 0

Risposto
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...

oltre 6 anni fa | 0

Risposto
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')

oltre 6 anni fa | 0

| accettato

Domanda


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...

oltre 6 anni fa | 0 risposte | 0

0

risposte

Risposto
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)...

oltre 6 anni fa | 0

Risposto
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 =...

oltre 6 anni fa | 0

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

oltre 6 anni fa | 0

| accettato

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

oltre 6 anni fa | 0

Risposto
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...

oltre 6 anni fa | 1

Risposto
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...

oltre 6 anni fa | 0

Risposto
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...

oltre 6 anni fa | 0

Risposto
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...

oltre 6 anni fa | 0

Risposto
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...

oltre 6 anni fa | 0

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

oltre 6 anni fa | 1

Domanda


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=...

oltre 6 anni fa | 1 risposta | 0

1

risposta

Risposto
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];

oltre 6 anni fa | 0

Risposto
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) ...

oltre 6 anni fa | 0

Risposto
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....

oltre 6 anni fa | 0

Risposto
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

oltre 6 anni fa | 0

| accettato

Domanda


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...

circa 7 anni fa | 1 risposta | 0

1

risposta

Domanda


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...

circa 7 anni fa | 1 risposta | 0

1

risposta

Domanda


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 ...

circa 8 anni fa | 2 risposte | 0

2

risposte

Carica altro