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statistique - modelisation - plans experimentaux
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Is it a fixed or random effect?
Posted on November 2015 by Brian McGil l Teaching a graduate statistics class, I end up as a statistical consultant a lot. One of the questions I get most often is should I treat this as a fixed or a random effect? This topic seems to be shrouded in mystery....
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Beyond Bar and Line Graphs: Time for a New Data Presentation Paradigm
Weissgerber TL, Milic NM, Winham SJ, Garovic VD (2015) Beyond Bar and Line Graphs: Time for a New Data Presentation Paradigm. PLoS Biol 13(4): e1002128. doi:10.1371/journal.pbio.1002128 Abstract Figures in scientific publications are critically important...
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Analysis of variance|why it is more important than ever#3;
Read the publication here
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A protocol for data exploration to avoid common statistical problems
Zuur, A. F., Ieno, E. N. and Elphick, C. S. (2010), A protocol for data exploration to avoid common statistical problems. Methods in Ecology and Evolution, 1: 3–14. doi: 10.1111/j.2041-210X.2009.00001.x Click here
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Box Plots
Use box plots to illustrate the spread and differences of samples. Mistral gagnant by Renaud on Grooveshark
Analysing mesocosm experiments using Generalized Linear Models
Author: Eduards Szöecs "Based on 11 mesocosm data sets (thanks to the co-authors who kindly shared their data) I compared 3 different methods to analyse such data. In this post I show how to analyse mesocosm data using Generalized Linear Models for multivariate...
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Publié depuis Overblog et X (Twitter) et Facebook
The meaning of error bars is often misinterpreted, as is the statistical significance of their overlap. Madrid, Madrid by Nilda Fernandez on Grooveshark
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Linear Mixed Effects Modeling
Here, a lot of information about Linear Mixed Effects Modeling
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Experimental Design and Statistics
We use cookies to enhance your experience on our website. By continuing to use our website, you are agreeing to our use of cookies. You can change your cookie settings at any time. Find out more Ground Control to Major Tom by David Bowie on Groovesha...
The GAMS System
The General Algebraic Modeling System (GAMS) is specifically designed for modeling linear, nonlinear and mixed integer optimization problems. The system is especially useful with large, complex problems. GAMS is available for use on personal computers,...
Point Counts of Birds: What Are We Estimating?
Author: Douglas H. Johnson Abstract: Point counts of birds are made for many reasons, including estimating local densities, determining population trends, assessing habitat preferences, and exploiting the activities of recreational birdwatchers. Problems...
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Publié depuis Overblog et X (Twitter) et Facebook
Nature Biotechnology 22, 1177 - 1178 (2004) doi:10.1038/nbt0904-1177 There are excellent introductory books on Bayesian analysis, but the key ideas behind the buzzword can be grasped quickly ...
Can models of presence-absence be used to scale abundance? Two case studies considering extremes in life history
Nielsen, S. E., Johnson, C. J., Heard, D. C. and Boyce, M. S. 2005. Can models of presence/absence be used to scale abundance? Two case studies considering extremes in life history. / Ecography 28: 197/ 208. Understanding patterns of species occurrence...
Zero tolerance ecology: improving ecological inference by modelling the source of zero observations
Tara G. Martin et al., Ecology Letters, (2005) 8: 1235–1246 Abstract A common feature of ecological data sets is their tendency to contain many zero values. Statistical inference based on such data are likely to be inefficient or wrong unless careful...
Méthodes pour l’analyse de données de comptage à large échelle géographique : Estimation de l’abondance des rapaces en France
Par Kévin LE REST, mémoire de Master 2, Statistiques appliquées pour les sciences agronomiques et agroalimentaires, 2010 A lire ici
