Francisco de Castro

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Last seen: 10 mesi fa | Attivo dal 2007

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Degrees of freedom in a kernel density estimation
I found a solution for my own question. The degrees of freedom can be can be estimated as the trace of the smoothing matrix. Thi...

quasi 3 anni fa | 0

| accettato

Domanda

websave adds html to file name
Any reason why 'websave' adds a '.html' to the name of the output file? I'm downloading coronavirus data from John Hopkins Univ...

quasi 6 anni fa | 2 risposte | 1

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Domanda

Degrees of freedom in a kernel density estimation
Is there any way to estimate the degrees of freedom from a kernel density estimator? Background: I want to compare the fitting...

circa 6 anni fa | 1 risposta | 0

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What happened to allfitdist ?
A bit late, perhaps, but function 'fitmethis' in matlab's file exchange does something similar to allfitdist.

circa 6 anni fa | 1

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Why does Jpattern option not improve execution time of ODE solver?
I have a system of ~100 ODEs. They represent interactions between species in an ecosystem. Each species interacts only with a sm...

oltre 7 anni fa | 0 risposte | 0

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Thresholds in ODE solvers
I found a partial (and not very elegant) solution for this, albeit only for some of the ODE solvers. 1. Write the example od...

oltre 7 anni fa | 0

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Is there any way to use multiple tolerances in ODE solvers?
Thanks Torsten, your suggestion may be the solution. If you put it as an separate answer I'll mark it as accepted. F

quasi 8 anni fa | 0

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Is there any way to use multiple tolerances in ODE solvers?
I'm frequently using systems of ODEs to simulate the dynamics of ecological communities. The number of equations is large: from ...

circa 8 anni fa | 4 risposte | 0

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Heterogeneity in linear model
I'm fitting a generalized linear model. The response variable has a gamma distribution. I have 1 fixed (categorical) factor with...

circa 9 anni fa | 0 risposte | 0

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Good plotting functions for food webs?
Hi Edward, Maybe too late, but I updated plotfoodweb to plot in 2D. Not arrows, just lines, but still. Hope it helps.

oltre 10 anni fa | 0

Domanda

Is Bonferroni adjustment applied to p-values by default?
Do the MATLAB procedures that perform multiple regression (specifically GeneralizedLinearModel.stepwise) apply the Bonferroni ad...

oltre 11 anni fa | 0 risposte | 0

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Domanda

McKendrick - von Foerster equation
Can anybody suggest a step-by-step explanation of how to set up, in MATLAB, the McKendrick - vonFoerster equation for age-struct...

oltre 11 anni fa | 0 risposte | 1

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non-linear fit with generalized least squares
I need to fit a non-linear model in which the data are not independent. A Generalized Least Squares approach allows this if you ...

quasi 13 anni fa | 0 risposte | 0

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Stdev from gmdistribution.fit?
I'm using function gmdistribution.fit to fit data which is a mixture of three normal distributions with different means and diff...

circa 13 anni fa | 1 risposta | 0

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Compare fits in CFTOOL
Is there any way in CFTOOL (v3.3, R2012b) to plot two fits together (in the same figure)? So I can show their differences graphi...

oltre 13 anni fa | 0 risposte | 0

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Domanda

fitting implicit functions with NLINFIT
Is there any way to use implicit functions when fitting them to data with NLINFIT? Details: I need to fit a model to some data...

oltre 13 anni fa | 2 risposte | 0

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Domanda

Vectorization in an array of structures?
I seem to be unable of vectorize a simple calculation with the contents of an array of structures. Is this possible at all? Exam...

quasi 14 anni fa | 2 risposte | 0

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Domanda

Why deviance returned by GLMFIT is not = -2*LogLikelihood?
I'm working with GLM models using glmfit. After fitting the model I need to calculate the LogLikelihood (which is not returned d...

circa 14 anni fa | 1 risposta | 0

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Multivariate GLMFIT and GLMVAL
Peter, thanks for your comment. However, to plot the predicted values of the model I need the values of each predictor to span i...

oltre 14 anni fa | 0

Domanda

Multivariate GLMFIT and GLMVAL
I have a problem with plotting the results of a glm model with several predictors. I first fit the model with GLMFIT as: ...

oltre 14 anni fa | 3 risposte | 0

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Domanda

Thresholds in ODE solvers
Working with models of ecological communities based on diff. equations, I want to define a extinction threshold. If, during the ...

quasi 15 anni fa | 2 risposte | 0

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