ó šßÈ[c@`sdZddlmZmZmZmZddlZddlZddlZ ddl m Z ddl m Z ddd gZd Ze je jeƒjƒZd ZddfZe jejƒdefd„ƒYƒZdefd„ƒYZdefd„ƒYZdS(u> Optimization algorithms used in `~astropy.modeling.fitting`. i(tabsolute_importtunicode_literalstdivisiontprint_functionNi(tsix(tAstropyUserWarningu OptimizationuSLSQPuSimplexidgH¯¼šò×z>i i t OptimizationcB`sªeZdZgZd„Zed„ƒZejd„ƒZed„ƒZejd„ƒZed„ƒZ e jd„ƒZ d„Z ed „ƒZ e j d „ƒZRS( uE Base class for optimizers. Parameters ---------- opt_method : callable Implements optimization method Notes ----- The base Optimizer does not support any constraints by default; individual optimizers should explicitly set this list to the specific constraints it supports. cC`s(||_t|_t|_t|_dS(N(t _opt_methodtDEFAULT_MAXITERt_maxitert DEFAULT_EPSt_epst DEFAULT_ACCt_acc(tselft opt_method((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyt__init__1s   cC`s|jS(uMaximum number of iterations(R (R((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pytmaxiter7scC`s ||_dS(u Set maxiterN(R (Rtval((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyR<scC`s|jS(u=Step for the forward difference approximation of the Jacobian(R (R((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pytepsAscC`s ||_dS(u Set eps valueN(R (RR((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRFscC`s|jS(uRequested accuracy(R (R((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pytaccKscC`s ||_dS(u Set accuracyN(R (RR((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRPscC`sdj|jjƒ}|S(Nu{0}()(tformatt __class__t__name__(Rtfmt((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyt__repr__UscC`s|jS(N(R(R((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRYscC`stdƒ‚dS(Nu'Subclasses should implement this method(tNotImplementedError(R((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyt__call__]s(Rt __module__t__doc__tsupported_constraintsRtpropertyRtsetterRRRRtabctabstractmethodR(((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRs  tSLSQPcB`s5eZdZdddddgZd„Zd„ZRS(u) Sequential Least Squares Programming optimization algorithm. The algorithm is described in [1]_. It supports tied and fixed parameters, as well as bounded constraints. Uses `scipy.optimize.fmin_slsqp`. References ---------- .. [1] http://www.netlib.org/toms/733 uboundsueqconsuineqconsufixedutiedcC`sOddlm}tt|ƒj|ƒidd6dd6dd6dd6|_dS(Ni(t fmin_slsqpufinal_func_valunumiteru exit_modeumessage(tscipy.optimizeR$tsuperR#RtNonetfit_info(RR$((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRpscK`s|jd|jƒ|dR?R@RAR,RGRHRItfuncallsRJ((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRÌs.             (RRRRRR(((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyRL³s  I¥ÔèIðZ+ÿÿÿI¥Ôè(Rt __future__RRRRR<R!tnumpyR5texternRtutils.exceptionsRt__all__RtsqrttfinfoR8RR R R7t add_metaclasstABCMetatobjectRR#RL(((s:lib/python2.7/site-packages/astropy/modeling/optimizers.pyts"    DQ