85 lines
2.1 KiB
Python
85 lines
2.1 KiB
Python
import os
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import logging
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import inspect
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import numpy as np
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class smbLog(object):
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interpolator = "%s ==> %s"
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def __init__(self, level = logging.DEBUG):
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logging.basicConfig(
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level = level,
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format = '%(asctime)s %(levelname)s %(message)s',
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filename = os.path.join(os.sep, 'tmp', 'baker.lol'),
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)
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self.log = logging.getLogger()
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def debug(self, message = None):
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msg = smbLog.interpolator % (inspect.stack()[1][3], message)
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self.log.debug(msg)
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def info(self, message = None):
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msg = smbLog.interpolator % (inspect.stack()[1][3], message)
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self.log.info(msg)
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def warn(self, message = None):
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msg = smbLog.interpolator % (inspect.stack()[1][3], message)
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self.log.warn(msg)
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def error(self, message = None):
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msg = smbLog.interpolator % (inspect.stack()[1][3], message)
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self.log.error(msg)
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smblog = smbLog(logging.DEBUG)
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class smberror(Exception):
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"""
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this is a silly little exception subclass
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"""
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def __init__(self, val):
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self.value = val
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def __str__(self):
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return repr(self.value)
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def rms(errors):
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"""
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root mean square calculation
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"""
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r = 0.0
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for i in errors:
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r += np.power(i, 2)
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r = np.sqrt(r / len(errors))
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return r
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def exact_func(X):
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"""
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the exact function used from baker's article (for testing)
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"""
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x = X[0]
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y = X[0]
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return np.power((np.sin(x * np.pi) * np.cos(y * np.pi)), 2)
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def exact_func_3D(X):
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"""
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the exact function (3D) used from baker's article (for testing)
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"""
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x = X[0]
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y = X[1]
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z = X[2]
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return np.power((np.sin(x * np.pi / 2.0) * np.sin(y * np.pi / 2.0) * np.sin(z * np.pi / 2.0)), 2)
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def improved_answer(answer, exact, verbose=False):
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if not answer['error']:
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return True
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smblog.debug('error: %s' % answer['error'])
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smblog.debug('qlin: %s' % answer['qlin'])
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smblog.debug('final: %s' % answer['final'])
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smblog.debug('exact: %s' % exact)
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if np.abs(answer['final'] - exact) <= np.abs(answer['qlin'] - exact):
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smblog.debug(":) improved result")
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return True
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else:
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smblog.debug(":( damaged result")
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return False
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