[R] Fwd: How to best analyze dataset with zero-inflated loglinear dependent variable?

Mark Difford mark_difford at yahoo.co.uk
Sat Jun 9 14:35:25 CEST 2012


On Jun 08, 2012 at 5:37pm Heidi Bertels wrote [fwd: Iuri Gavronski]:

> The dependent variable is "problematic" because of its distribution. 
> It is zero-inflated (many projects did not receive funding), and for 
> those projects that did receive funding, the distribution is 
> loglinear. I believe this is called a zero-inflated loglinear 
> continuous dependent variable. 

Look at package gamlss, where you might find something. It has a number of
zero-inflated and zero-adjusted distributions. Package VGAM might also fit
this.

Regards, Mark.

-----
Mark Difford (Ph.D.)
Research Associate
Botany Department
Nelson Mandela Metropolitan University
Port Elizabeth, South Africa
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