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generate ARCH data set
Hi, I need to create an ARCH(1) data vector (1000,1). Parameters are alpha0=0.1 and alpha1 = 0.4. errors follow a standard no...

fast 11 Jahre vor | 0 Antworten | 0

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Frage

least absolute deviation matlab
Hi, Is the a way to do parameter estimation using Least Absolute deviation with constraints in matlab. If so, please let ...

fast 11 Jahre vor | 1 Antwort | 0

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Frage

summary statistics in matlab
Hi, Can someone please let me know if there's a command in matlab to get more than one summary statistics in one command like...

fast 11 Jahre vor | 2 Antworten | 0

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Frage

write matlab output to minitab
Hello, Can someone please let me know if there's a code that I can use to export a data set I have generated in matlab to MIN...

etwa 11 Jahre vor | 0 Antworten | 0

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Frage

integrate definite integrals matlab
Hi What is wrong with the following code please? thanks int((5*x)/((x^3-(7*x))^4), x=-1..1)

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

constrained mle estimation of Arma
Hi, Can someone please let me know how to estimates arma models using mle with the constraint that parameter estimates are po...

etwa 11 Jahre vor | 0 Antworten | 0

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Frage

round off in matlab
Hi, I am running a large simulation in matlab. I have noticed that matlab rounds off after 4 decimal places and this affects...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

selecting values of a vector
Hi, Is there a way to pick the element of a vector which is closest to 1. Let's say A = [ 113; 14; 6; 43; 9; 2 ] I wa...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

stopped in debugger question
Hi, I was running a program with a dbstop if NAN/inf line. The program ran and gave results. however, at the bottom where ...

etwa 11 Jahre vor | 1 Antwort | 1

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Frage

compute aic in matlab
Hi , Anybody know how to calculate the CORRECTED AIC in matlab? I have a code which calculates the aic but I need to find ...

etwa 11 Jahre vor | 0 Antworten | 0

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Frage

LS Estimates aren't accurate
Hello Can you please help me correct this? I am not getting the correct estimates from the following code.

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

delete rows with a special number
Hi , can someone please help me to delete the entire rows with 99? A= [ 0.0125 0.9025 99.0000 99.0000 ...

etwa 11 Jahre vor | 2 Antworten | 0

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Frage

using a seed for normal random number
Hi, I am using the following code in a simulation. I need to use a seed to generate the same random numbers. can you please h...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

writing fmincon funtion in matlab
Hi, Can someone please elp me to do the following optimization problem unsin FMINCON . I have a hard time writng the function th...

etwa 11 Jahre vor | 2 Antworten | 0

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Frage

sum of a series
Hi, Can someone please help me to write the following code using a summation for i = 1:1000 v(i) =y(i) - a0- a1...

etwa 11 Jahre vor | 2 Antworten | 0

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Frage

delete rows of a matrix
I have a vector A = [ 1 0 2; 0 3 4; 3 5 0; 0 0 0; 1 1 1 ] I need to delete the ro...

etwa 11 Jahre vor | 2 Antworten | 0

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Frage

Matrix is singular, RCOND=NAN
I am using the following code in a simulation and get a warning message. Is there any way to correct it? lb = 0.00...

etwa 11 Jahre vor | 2 Antworten | 0

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Frage

Please expalin the error
I am using the following code in a simulation program x= lsqlin(C,d,A,b,Aeq,beq,lb,ub,x0,options) When I use lb = [0.0...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

Please help with the Inequality
In the following code: x = lsqlin(C,d,A,b,Aeq,beq,lb,ub,x0,options) lb and ub are such that lb<=x<=ub. Is the...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

delete certain elements in a matrix
Is there any way to delete certain rows(with a pattern) in a matrix like to delete rows 1,6,11,21,26,..... using a loop T...

etwa 11 Jahre vor | 3 Antworten | 0

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Frage

How to deal with this
Hi, I have a large matrix that is generated in a simulation. I have noticed that some of the columns are NAN (entire colum...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

please help with the error
Can someone please help with the error? clc; clear; warning off; runs =100; p=1; ...

etwa 11 Jahre vor | 2 Antworten | 0

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Frage

assign subscrips to vectors
I have 5 vectors yt1, yt2, yt3,yt4,yt5 of size 200*1. I need to assign subscripts so that I can call the vector I want in sid...

etwa 11 Jahre vor | 3 Antworten | 0

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Frage

symbolic expantion in matlab
hi, I need to expand [1- (a1+b1)B ] / (1-b1B) and get a polynomial. Can someone help me with this please? Thanks.

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

Variable calculations with matlab
Hi, is it possible to get variable expressions in matlab? For example: From >> y = (a+b)^2 Can I get >> ...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

sum of coefficients less than 1
Can someone please modify the following code so that it has a constraint that the sum of ar1 and ar2 is less than one. Thanks...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

Please expalin the error
Hi , for the data set y, I need to fit an ar model and calculate the best order using aic. I used the following code to ...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

find ar oder using aic
I have a data set y. I need to find the best ar order using AIC. Can some one help me with the code please? thanks

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

Can you help me fix this?
*Im using the following function* function beta = arima(y, p, q, C, sigma) if nargin < 4 C = 0; end if ...

etwa 11 Jahre vor | 1 Antwort | 0

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Frage

Remove zeros from matrix
Please help me trim the zeros off the top the the X matrix. Thanks function Beta = nnARMAParam(y, p, q, C, sigma) if na...

etwa 11 Jahre vor | 1 Antwort | 0

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