Nov 13th, 2009| 04:46 pm | Posted by hlee
I was told to stay away from python and I’ve obeyed the order sincerely. However, I collected the following stuffs several months back at the instance of hearing about import inference and I hate to see them getting obsolete. At that time, collecting these modules and getting through them could help me complete the first step toward the quest Learning Python (the first posting of this slog). Continue reading ‘some python modules’ »
Tags:
APLpy,
AstroPy,
IDLsave,
import inference,
libraries,
modules,
package,
Pyfits,
PyMC,
PyRAF,
PYSTAT,
Python,
PyWavelets Category:
Algorithms,
Astro,
Cross-Cultural,
Data Processing,
Jargon,
Languages,
Methods,
News,
Stat |
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May 7th, 2009| 02:22 pm | Posted by hlee
Almost 100 years ago, A.S. Eddington stated in his book Stellar Movements (1914) that
…in calculating the mean error of a series of observations it is preferable to use the simple mean residual irrespective of sign rather than the mean square residual
Such eminent astronomer said already least absolute deviation over chi-square, if I match simple mean residual and mean square residual to relevant methodologies, in order. Continue reading ‘a century ago’ »
Tags:
chi-square minimization,
Eddington,
inference,
LAD,
Laplace,
mse,
PyMC,
Python,
R.A.Fisher,
utility function Category:
Astro,
Cross-Cultural,
Quotes,
Stat,
Uncertainty |
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