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Yufei Cao


Last seen: 2 Monate vor |  Aktiv seit 2018

Followers: 0   Following: 0

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Frage


how to define matirx series?
Dear community, I want to define a matirx series whose each element is a matirx. For example, a1 = randn(2,2); a2 = randn(2,2...

etwa 2 Jahre vor | 1 Antwort | 0

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Beantwortet
How can I adjust the vertical line spacing in the MATLAB Editor?
i have the same question. How to solve it?

etwa 2 Jahre vor | 0

Frage


increase line-spaces in .m files?
Dear community, Thanks in advance. I use monospaced with size 18 when I code in the .m files, but I find that the scripts make...

etwa 2 Jahre vor | 1 Antwort | 0

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Frage


Is expm accurate to compute transition probabilities for a continuous-time Markov chain?
I have the following Q-matrix for a continuous time Markov chain and use expm to compute transition probabilities. syms t posit...

fast 3 Jahre vor | 1 Antwort | 0

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why expm dose not show parameters?
I use expm to symbolically compute martix exponential . syms x [1 2] syms t A = [-x(1)-x(2) x(1); 0 -x(2)]; B = expm...

fast 3 Jahre vor | 1 Antwort | 0

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Beantwortet
Causes of Rank Deficiency when Fitting GARCH models
I have the same problem.

etwa 3 Jahre vor | 0

Frage


Plot datetime data from a cell array?
I have data set shown in fig. But I do not how to access to the data. I try to use: plot(index{2:end, 1}, cell2mat(index(2:end,...

etwa 3 Jahre vor | 1 Antwort | 0

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I have the errors when learning GARCH: lags must be unique, positive integers?
I am not sure why I have this error when using name-value to define lags. Any ideas?

etwa 3 Jahre vor | 1 Antwort | 0

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Frage


Plot variables with similar names.
I have the following double variables and the names are var_1 var_2 var_3 var_4 var_5 ... var_30. I need to plot them. ...

mehr als 3 Jahre vor | 2 Antworten | 0

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Beantwortet
write data to excel sheet column
After 8 years, is there a way to do this if the column number is bigger than z?

mehr als 3 Jahre vor | 0

Frage


How to get standard errors from copulafit
Hello, Community, I try to fit a Gaussian copula by using rhohat = copulafit('Gaussian',u) How do I get the standard errors ...

etwa 4 Jahre vor | 1 Antwort | 0

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Frage


How to find the minimum value of an integral using Matlab?
I want to find the value, which makes takes the minimum value. is given by ...

mehr als 4 Jahre vor | 1 Antwort | 0

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Beantwortet
AIC and BIC with copulafit
I have the same question.

mehr als 5 Jahre vor | 1

Frage


replace a double in a array with a string BUT in specific Columns?
Suppose the matrix is A = [ 0.5 2 3 2.5 1 1 0.6 1 2 2.4 2 3 0.2 2 3 2.3 3 2] My question is to repl...

mehr als 5 Jahre vor | 1 Antwort | 0

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Frage


Find the root of a double integral
why the following code cannot find the root of the function g(z). Note f(2)=6. So fzero(g,1) should return 2. syms x ...

mehr als 5 Jahre vor | 1 Antwort | 0

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Frage


how to define a double integral with symbolic upper limits
I want to define a double integral, like this f(h) = \int_0^h (\int_0^1 xy dx) dy, where h is a variable. I try to use ...

mehr als 5 Jahre vor | 1 Antwort | 0

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