LSST Applications
21.0.0-172-gfb10e10a+18fedfabac,22.0.0+297cba6710,22.0.0+80564b0ff1,22.0.0+8d77f4f51a,22.0.0+a28f4c53b1,22.0.0+dcf3732eb2,22.0.1-1-g7d6de66+2a20fdde0d,22.0.1-1-g8e32f31+297cba6710,22.0.1-1-geca5380+7fa3b7d9b6,22.0.1-12-g44dc1dc+2a20fdde0d,22.0.1-15-g6a90155+515f58c32b,22.0.1-16-g9282f48+790f5f2caa,22.0.1-2-g92698f7+dcf3732eb2,22.0.1-2-ga9b0f51+7fa3b7d9b6,22.0.1-2-gd1925c9+bf4f0e694f,22.0.1-24-g1ad7a390+a9625a72a8,22.0.1-25-g5bf6245+3ad8ecd50b,22.0.1-25-gb120d7b+8b5510f75f,22.0.1-27-g97737f7+2a20fdde0d,22.0.1-32-gf62ce7b1+aa4237961e,22.0.1-4-g0b3f228+2a20fdde0d,22.0.1-4-g243d05b+871c1b8305,22.0.1-4-g3a563be+32dcf1063f,22.0.1-4-g44f2e3d+9e4ab0f4fa,22.0.1-42-gca6935d93+ba5e5ca3eb,22.0.1-5-g15c806e+85460ae5f3,22.0.1-5-g58711c4+611d128589,22.0.1-5-g75bb458+99c117b92f,22.0.1-6-g1c63a23+7fa3b7d9b6,22.0.1-6-g50866e6+84ff5a128b,22.0.1-6-g8d3140d+720564cf76,22.0.1-6-gd805d02+cc5644f571,22.0.1-8-ge5750ce+85460ae5f3,master-g6e05de7fdc+babf819c66,master-g99da0e417a+8d77f4f51a,w.2021.48
LSST Data Management Base Package
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A weighted Student's T or Gaussian distribution used as a component in a Mixture. More...
#include <Mixture.h>
Public Member Functions | |
int | getDimension () const |
Return the number of dimensions. More... | |
Vector | getMu () const |
Get/set the location parameter (mean/median/mode) of this component. More... | |
void | setMu (Vector const &mu) |
Matrix | getSigma () const |
Get/set the shape/size parameter. More... | |
void | setSigma (Matrix const &sigma) |
MixtureComponent | project (int dim) const |
Project the distribution onto the given dimension (marginalize over all others) More... | |
MixtureComponent | project (int dim1, int dim2) const |
Project the distribution onto the given dimensions (marginalize over all others) More... | |
MixtureComponent (int dim) | |
Default-construct a mixture component with weight=1, mu=0, sigma=identity. More... | |
MixtureComponent (Scalar weight_, Vector const &mu, Matrix const &sigma) | |
Default-construct a mixture component with the given parameters. More... | |
MixtureComponent & | operator= (MixtureComponent const &other) |
Public Attributes | |
Scalar | weight |
Weight of this distribution in the mixture. More... | |
Friends | |
class | Mixture |
std::ostream & | operator<< (std::ostream &os, MixtureComponent const &self) |
A weighted Student's T or Gaussian distribution used as a component in a Mixture.
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explicit |
Default-construct a mixture component with weight=1, mu=0, sigma=identity.
lsst::meas::modelfit::MixtureComponent::MixtureComponent | ( | Scalar | weight_, |
Vector const & | mu, | ||
Matrix const & | sigma | ||
) |
Default-construct a mixture component with the given parameters.
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inline |
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inline |
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inline |
Get/set the shape/size parameter.
For the Gaussian distribution, this is simply the covariance matrix. For the Student's T distribution with df > 2, covariance = sigma * df / (df - 2); for df <= 2, the Student's T distribution has infinite variance, but is still a valid distribution.
MixtureComponent& lsst::meas::modelfit::MixtureComponent::operator= | ( | MixtureComponent const & | other | ) |
MixtureComponent lsst::meas::modelfit::MixtureComponent::project | ( | int | dim | ) | const |
Project the distribution onto the given dimension (marginalize over all others)
MixtureComponent lsst::meas::modelfit::MixtureComponent::project | ( | int | dim1, |
int | dim2 | ||
) | const |
Project the distribution onto the given dimensions (marginalize over all others)
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inline |
void lsst::meas::modelfit::MixtureComponent::setSigma | ( | Matrix const & | sigma | ) |
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friend |
Scalar lsst::meas::modelfit::MixtureComponent::weight |