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Results tagged with poisson-regression
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user 27427
Poisson regression is one of a number of regression models for dependent variables that are counts (non-negative integers). A more general model is negative binomial regression. Both have numerous variants.
4
votes
1
answer
2k
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How to interpret coefficients of standardized variables in a Poisson regression?
I am studying the determinants of patenting; accordingly my response variable in a Poisson/count data model is the number of patents in a year and country (i.e. this is a macro-panel study; I use dumm …
- 155
1
vote
2
answers
10k
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"variance matrix is nonsymmetric or highly singular" in Stata; no SEs in table
I get the above warning in Stata when I run a (clustered-panel pseudo-Poisson ML gravity-) regression.
Observations are pairs of countries and the regression includes dummies for each combination of …
- 155