fb16dfecae
Commit b7f05445c0 has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.
Approved by: portmgr (tcberner)
17 lines
1.2 KiB
Plaintext
17 lines
1.2 KiB
Plaintext
This module is an adaptation of a portion of GLM functionality from the
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Statsmodels package, this it has been simplified and customized for the purposes
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of serving as the base for several other PySAL modules, namely SpInt and GWR.
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Currently, it supports the estimation of Gaussian, Poisson, and Logistic
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regression using only iteratively weighted least squares estimation (IWLS). One
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of the large differences this module and the functions avaialble in the
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Statsmodels package is that the custom IWLS routine is fully sparse compatible,
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which was necesary for the very sparse design matrices that arise in constrained
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spatial interaction models. The somewhat limited functionality and computation
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of only a subset of GLM diagnostics also decreases the computational overhead.
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Another difference is that this module also supports the estimation of
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QuasiPoisson models. One caveat is that this custom IWLS routine currently
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generates estimates by directly solves the least squares normal equations rather
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than using a more robust method like the pseudo inverse. For more robust
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estimation of ill conditioned data and a fuller GLM framework we suggest using
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the original GLM functionality from Statsmodels.
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