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Statistical resources
We have a comprehensive training manual which
illustrates statistical methodology with an
agricultural and environmental focus. An undergraduate knowledge
of basic statistics is all you need to follow the manual, which
takes you through design and analysis of experiments using the current
version of
GenStat.
GenStat Resources. Right-click to save, left-click to open:
Other Resources:
| Agronomy Journal |
Statistical Analysis of Field Trials with
Changing Treatment Variance.
Co-authored with Curt Lee, Agro-Tech Inc, North Dakota, USA |
| In-house paper |
644 KB pdf |
Compares a standard split-block analysis of an agricultural field experiment with a spatial analysis using Linear Mixed Models (REML). Co-authored with Curt Lee, Agro-Tech Inc, North Dakota, USA |
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Power & sample
size |
0.5 MB xls |
Calculates power
and/or required sample size for an experiment (see Mick
O'Neill & Peter Thomson in Australian Journal of Experimental Agriculture, 1998, 38 617-22; macro
updated by Maryann O'Donnell, 2004 |
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Inverse normal template for seed counts |
284 KB xls |
Uses Solver and
maximum likelihood to fit an inverse normal distribution
for the time to seed germination |
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REML for a simple dataset |
0.5 MB xls |
Uses Excel to demonstrate the
difference between Maximum Likelihood and Residual
Maximum Likelihood estimates for a simple set of data
from a normal population |
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Technical report |
233 KB pdf |
Technical report
for Levene's test |
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CRD |
845 KB zipped xls |
Tables for Levene's
test for a completely randomised design designs |
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general |
45 KB zipped xls |
Tables for Levene's
test for general designs |
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