質問

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...

11年弱前 | 0 件の回答 | 0

0

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質問

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 ...

11年弱前 | 1 件の回答 | 0

1

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質問

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...

11年弱前 | 2 件の回答 | 0

2

回答

質問

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...

11年弱前 | 0 件の回答 | 0

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回答

質問

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)

約11年前 | 1 件の回答 | 0

1

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質問

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...

約11年前 | 0 件の回答 | 0

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回答

質問

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...

約11年前 | 1 件の回答 | 0

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回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答

質問

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 ...

約11年前 | 1 件の回答 | 1

1

回答

質問

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 ...

約11年前 | 0 件の回答 | 0

0

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質問

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

約11年前 | 1 件の回答 | 0

1

回答

質問

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 ...

約11年前 | 2 件の回答 | 0

2

回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答

質問

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...

約11年前 | 2 件の回答 | 0

2

回答

質問

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...

約11年前 | 2 件の回答 | 0

2

回答

質問

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...

約11年前 | 2 件の回答 | 0

2

回答

質問

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...

約11年前 | 2 件の回答 | 0

2

回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答

質問

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...

約11年前 | 3 件の回答 | 0

3

回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答

質問

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

約11年前 | 2 件の回答 | 0

2

回答

質問

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...

約11年前 | 3 件の回答 | 0

3

回答

質問

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.

約11年前 | 1 件の回答 | 0

1

回答

質問

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

約11年前 | 1 件の回答 | 0

1

回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答

質問

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 ...

約11年前 | 1 件の回答 | 0

1

回答

質問

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

約11年前 | 1 件の回答 | 0

1

回答

質問

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 ...

約11年前 | 1 件の回答 | 0

1

回答

質問

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...

約11年前 | 1 件の回答 | 0

1

回答