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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...

12 years 前 | 0 个回答 | 0

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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 ...

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 2 个回答 | 0

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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...

12 years 前 | 0 个回答 | 0

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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)

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 0 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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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 ...

12 years 前 | 1 个回答 | 1

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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 ...

12 years 前 | 0 个回答 | 0

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

12 years 前 | 1 个回答 | 0

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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 ...

12 years 前 | 2 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 2 个回答 | 0

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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...

12 years 前 | 2 个回答 | 0

2

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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...

12 years 前 | 2 个回答 | 0

2

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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...

12 years 前 | 2 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 3 个回答 | 0

3

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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...

12 years 前 | 1 个回答 | 0

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

12 years 前 | 2 个回答 | 0

2

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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...

12 years 前 | 3 个回答 | 0

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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.

12 years 前 | 1 个回答 | 0

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

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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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 ...

12 years 前 | 1 个回答 | 0

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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

12 years 前 | 1 个回答 | 0

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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 ...

12 years 前 | 1 个回答 | 0

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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...

12 years 前 | 1 个回答 | 0

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