gouchangjiang / opengeoda

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Global Moran: Flag use of residuals #132

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago
Add flag to global Moran scatterplot and LISA maps when people try to load the 
OLS residuals field, sth like: "It is not appropriate to use OLS residuals 
here. Please see documentation for details." We could discuss if this should be 
a flag or blocker (to get around a blocker version, people could just rename 
the field).

For background, see GeoDa Workbook, p. 193:
... it is not appropriate to use the permutation approach to assess 
significance [of global Moran's I for OLS residuals]. This is because OLS 
residuals are already correlated by construction and the permutation approach 
ignores this fact. For the same reason, it is also not appropriate to construct 
LISA maps for the residuals. 

Original issue reported on code.google.com by jkoschin...@gmail.com on 16 Apr 2011 at 12:43

GoogleCodeExporter commented 9 years ago
We don't currently keep track of how a particular field was created, nor do I 
suggest that we try.  Looking at the name of the field is a bit shaky because 
we might change the name in the future, and the user could easily chose to not 
use the suggested name in the Regression Save to Table dialog (just type in 
anything different).  This should not be 1.0 blocking issue in my opinion.  
Moving to 1.0.1 for now.

Original comment by mmcc...@gmail.com on 26 Aug 2011 at 10:09

GoogleCodeExporter commented 9 years ago

Original comment by jkoschin...@gmail.com on 18 Oct 2011 at 3:01