# Copyright (C) 2015 ETH Zurich, Institute for Astronomy
'''
Created on Aug 5, 2015
author: jakeret
'''
from __future__ import print_function, division, absolute_import, unicode_literals
from copy import copy
import numpy as np
class Params(object):
"""
A key-value parameter store preserving the order of the params passed to the intializer.
Examples::
$ params = Params(("key1", [1,2,3]),
("key2", [1,2,3]))
$ print(params.keys)
> ['key1', 'key2']
$ print(params.key1)
> [1, 2, 3]
$ params[:,0] = 0
$ print(params.values)
> [[0 2 3]
[0 2 3]]
$ print(params[:,1])
> [2 2]
"""
[docs]
def __init__(self, *args):
values = []
self._keys = []
for k,v in args:
if k in self._keys:
raise KeyError("Duplicated key '%s'"%k)
self.__dict__[k] = v
self._keys.append(k)
values.append(v)
self._values = np.array(values)
def __getitem__(self, slice):
return self.values[slice]
def __setitem__(self, slice, value):
self.values[slice] = value
def __str__(self):
return ",".join(("%s=%s"%(k,v) for k,v in zip(self.keys, self.values)))
@property
def keys(self):
return copy(self._keys)
@property
def values(self):
return self._values
[docs]
def get(self, key):
return self.__dict__[key]
[docs]
def copy(self):
return Params(*zip(self.keys, self.values))