03 March 2013 4 8K Report

Could you suggest, if it exists, a comprehensive R package with several options for treatment of missing data?

More Paolo Giordani's questions See All
Circular plots for showing shared knowledge?

I have to show data about shared uses of medicinal plants in different ethnic groups. I wonder if circular plots could be an option for this kind of data or not. And if yes, how to arrange...

09 October 2017 9,691 7 View

Kriging with sampling units allocated on a triangle grid?

Do you know about any pros vs cons in interpolating (with a kriging or with other kind of approaches) a variable collected in a survey area with a triangle shape and with its sampling units...

06 July 2014 6,888 14 View

Methods for estimating epiphytic lichen biomass?

Does anyone know about protocols for estimating the biomass of epiphytic lichens and/or mosses in forest ecosystems?

31 December 2013 5,046 4 View

R Script for adonis() with more levels of nestedness

We have a design with several levels of nestedness: lichen species richness sampled at N vs. S expositions on trees located on northern and southern versants in different macroregions. We have...

07 August 2013 8,225 12 View

Is there any recommended statistical approach for analysing data from BACI sampling designs?

I am always confused on how to treat properly the data from Before After Control Impact design? What should I take into account?

02 March 2013 5,869 7 View

What would you suggest to obtain reliable interpolations of a response variable if the study area is characterized by a complex geomorphology?

How to run spatial models in heterogeneous areas? Are there methods for taking into account e.g. the "basin" as a predictor?

10 November 2012 6,875 13 View

Is it possible to estimate with Horwitz-Thompson the number of networks from an Adaptive Cluster Sampling?

Together with the estimations of other parameters (mean, total etc.), is it possible, using Horwitz-Thompson estimators, to estimate the actual number of networks (cluster of adjacent sampling...

09 October 2012 2,677 0 View

Could you suggest proper statistical methods for detecting spatial-temporal variability?

What is the best method for formally testing the temporal variation against the one due to environmental and spatial matrices? Is there any kind of partial RDA, partial mantel tests or something...

09 October 2012 4,735 8 View

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