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Results tagged with regression
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user 48622
Techniques for analyzing the relationship between one (or more) "dependent" variables and "independent" variables.
2
votes
0
answers
235
views
High $R^2$ on Ordinary least squares model with violated assumptions. Is it good?
Recently I tried to fit some points which (from the plot) seems linearly distributed.
The fit result (in R) is:
Residuals:
Min 1Q Median 3Q Max
-112223 -2532 2021 3698 …
- 647
18
votes
4
answers
3k
views
Why is Ordinary Least Squares performing better than Poisson regression?
I'm trying to fit a regression to explain the number of homicides in each district of a city. … a Poisson regression. The problem is that I have better results in the OLS regression: the pseudo-$R^2$ is higher (0.71 vs 0.57) and the RMSE as well (3.8 vs 8.88. …
- 647
2
votes
0
answers
272
views
Exploratory data analysis. What features are important?
I am trying to fit the number of crimes in a city with some enviromental variables (aka my features). I'm using a Poisson/Negative Binomial model since I have count data.
The problems are:
selecting …
- 647