LSST Applications 27.0.0,g0265f82a02+469cd937ee,g02d81e74bb+21ad69e7e1,g1470d8bcf6+cbe83ee85a,g2079a07aa2+e67c6346a6,g212a7c68fe+04a9158687,g2305ad1205+94392ce272,g295015adf3+81dd352a9d,g2bbee38e9b+469cd937ee,g337abbeb29+469cd937ee,g3939d97d7f+72a9f7b576,g487adcacf7+71499e7cba,g50ff169b8f+5929b3527e,g52b1c1532d+a6fc98d2e7,g591dd9f2cf+df404f777f,g5a732f18d5+be83d3ecdb,g64a986408d+21ad69e7e1,g858d7b2824+21ad69e7e1,g8a8a8dda67+a6fc98d2e7,g99cad8db69+f62e5b0af5,g9ddcbc5298+d4bad12328,ga1e77700b3+9c366c4306,ga8c6da7877+71e4819109,gb0e22166c9+25ba2f69a1,gb6a65358fc+469cd937ee,gbb8dafda3b+69d3c0e320,gc07e1c2157+a98bf949bb,gc120e1dc64+615ec43309,gc28159a63d+469cd937ee,gcf0d15dbbd+72a9f7b576,gdaeeff99f8+a38ce5ea23,ge6526c86ff+3a7c1ac5f1,ge79ae78c31+469cd937ee,gee10cc3b42+a6fc98d2e7,gf1cff7945b+21ad69e7e1,gfbcc870c63+9a11dc8c8f
LSST Data Management Base Package
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Public Member Functions | |
__init__ (self, np.ndarray x, dict[str, np.ndarray] helpers, Callable|float step, Callable|None grad=None, Callable|None prox=None) | |
float | step (self) |
tuple[int,...] | shape (self) |
npt.DTypeLike | dtype (self) |
Parameter | copy (self) |
update (self, int it, np.ndarray input_grad, *args) | |
resize (self, Box old_box, Box new_box) | |
Public Attributes | |
x | |
helpers | |
grad | |
prox | |
Protected Attributes | |
_step | |
A parameter in a `Component` Parameters ---------- x: The array of values that is being fit. helpers: A dictionary of helper arrays that are used by an optimizer to persist values like the gradient of `x`, the Hessian of `x`, etc. step: A numerical step value or function to calculate the step for a given `x``. grad: A function to calculate the gradient of `x`. prox: A function to take the proximal operator of `x`.
Definition at line 63 of file parameters.py.
lsst.scarlet.lite.parameters.Parameter.__init__ | ( | self, | |
np.ndarray | x, | ||
dict[str, np.ndarray] | helpers, | ||
Callable | float | step, | ||
Callable | None | grad = None, | ||
Callable | None | prox = None ) |
Reimplemented in lsst.scarlet.lite.parameters.FixedParameter, lsst.scarlet.lite.parameters.AdaproxParameter, and lsst.scarlet.lite.parameters.FistaParameter.
Definition at line 82 of file parameters.py.
Parameter lsst.scarlet.lite.parameters.Parameter.copy | ( | self | ) |
Copy this parameter, including all of the helper arrays.
Definition at line 123 of file parameters.py.
npt.DTypeLike lsst.scarlet.lite.parameters.Parameter.dtype | ( | self | ) |
The numpy dtype of the array that is being fit.
Definition at line 119 of file parameters.py.
Grow the parameter and all of the helper parameters Parameters ---------- old_box: The old bounding box for the parameter. new_box: The new bounding box for the parameter.
Definition at line 144 of file parameters.py.
tuple[int, ...] lsst.scarlet.lite.parameters.Parameter.shape | ( | self | ) |
The shape of the array that is being fit.
Definition at line 114 of file parameters.py.
float lsst.scarlet.lite.parameters.Parameter.step | ( | self | ) |
Calculate the step Return ------ step: The numerical step if no iteration is given.
Definition at line 103 of file parameters.py.
lsst.scarlet.lite.parameters.Parameter.update | ( | self, | |
int | it, | ||
np.ndarray | input_grad, | ||
* | args ) |
Update the parameter in one iteration. This includes the gradient update, proximal update, and any meta parameters that are stored as class attributes to update the parameter. Parameters ---------- it: The current iteration input_grad: The gradient from the full model, passed to the parameter.
Reimplemented in lsst.scarlet.lite.parameters.FistaParameter, lsst.scarlet.lite.parameters.AdaproxParameter, and lsst.scarlet.lite.parameters.FixedParameter.
Definition at line 128 of file parameters.py.
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protected |
Definition at line 98 of file parameters.py.
lsst.scarlet.lite.parameters.Parameter.grad |
Definition at line 99 of file parameters.py.
lsst.scarlet.lite.parameters.Parameter.helpers |
Definition at line 91 of file parameters.py.
lsst.scarlet.lite.parameters.Parameter.prox |
Definition at line 100 of file parameters.py.
lsst.scarlet.lite.parameters.Parameter.x |
Definition at line 90 of file parameters.py.