Message-ID: <alpine.LNX.2.00.1205160759290.15792@salmo.appl-ecosys.com>
Date: 2012-05-16T15:01:12Z
From: Rich Shepard
Subject: Continuous (Non-Count) Skewed Data With Many Zeros
In-Reply-To: <OF84F268C8.31812562-ON87257A00.0051EFD2-87257A00.005227A1@usgs.gov>
On Wed, 16 May 2012, Brian S Cade wrote:
> I repeat - check out quantile regression in the quantreg package. If you
> have censored data (below detection limits), there are censored versions
> of quantile regression that can be used, crg() function has 3 alternative
> estimators.
Brian,
Gotcha'. I'm learning of options that I need to carefully learn and
evaluate. Will install and learn the quantreg package.
Thanks,
Rich
--
Richard B. Shepard, Ph.D. | Integrity - Credibility - Innovation
Applied Ecosystem Services, Inc. | Helping Ensure Our Clients' Futures
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