| Homepage of Stéphane Dray |

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Software
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| spacemakeR | |
| Package to compute principal coordinate analysis of neighbor matrices (PCNM) and Moran's eigenvectors maps (MEM). Note: It is now included in the sedaR project and available here on R-Forge. |
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| fourthcorner | |
| Functions to test the link between three tables. Univariate and multivariate statistics are available. Five permutation procedures are proposed. Note: Functions are now included in the ade4 package. |
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| packfor | |
| Forward Selection as in CANOCO based on permutation procedure using residuals from the reduced model. Y can be univariate (multiple regression) or multivariate (redundancy analysis). Note: It is now included in the sedaR project and available here on R-Forge. |
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| CoCoAn | |
| Functions to compute correspondence analysis and constrained correspondence analysis and to make the associated graphical representation. CA and CCA are now available in ade4 and vegan packages. CoCoAn is not maintained but you can download the sources from the R archives. | |
| nipals | |
| A set of small functions for R software to perform NIPALS analysis which allows to apply PCA to data sets with missing values. Generic functions (print and scatter) are also provided. Note: Functions are now included in the ade4 package. |
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| spatialrlq | |
| Spatial-RLQ analysis with R software. Download the R file and read the documentation to perform the analysis (packages spdep, ade4 and gpclib are required) | |
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Extension for ArcView 3.x (tested with version 3.2). It allows to exchange data with ADE-4 software, to launch some multivariate analyses (e.g. PCA, local and global PCA, CCA...) and to get results within ArcView. |