Gianmarco Alberti

4 Questions 10 Answers 0 Followers

Questions related from Gianmarco Alberti

How to interpolate wind direction in GIS using transformation?

Hello. I have a point shapefile representing the location of weather stations; for each point, the wind speed and wind direction (in degrees) is recorded. I need to create a cotninous surface...

27 April 2017 5,877 10 View

What's the reason for deriving Cohen's w from Cramer's V if the latter is already a measure of effect size?

In Sheskin's Handbook of Parametric and Nonparametric Statistical Procedures, for each categorical association coefficient (e.g., Pearson's C, Pearson's phi, Cramer's V), the Author also takes...

03 November 2016 6,002 2 View

How we can calculate the average leverage when one predictor is categorical?

In Logistic Regression (as in regression in general), when it comes to check model's diagnostics, one has to check for observations with higher-than-average leverage. From what I read in several...

30 September 2016 4,601 3 View

Does anyone know about possible function of ceramic disks from prehistoric contexts?

I was wondering if anyone has ever come across ceramic disks from prehistoric contexts, huts in particular. By ceramic disks I mean sherds from pots' wall, reworked in such a way to eventually...

01 May 2016 8,038 25 View