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CANOCO

研究分析軟體
Research & Analysis Software

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CANOCO 生態排序分析軟體

Canoco for Windows是新一代的CANOCO軟體,是生態學應用軟體中用於約束與非約束排序的最流行工具。Canoco for Windows整合了排序以及回歸和排列方法學,以便得到健全的生態數據統計模型。Canoco for Windows包括線性和曲線單峰方法.使用Canoco for Windows進行排序,能夠洞察:

    * 生物群落的結構
    * 植物與動物群落以及它們的環境之間的聯繫
    * 一個對環境和(或)其生物群落的假設衝擊所能造成的影響
    * 在生物群落上進行的複雜生態學和生態毒理學實驗的相關處理所能造成的影響

Version 4.5 of CANOCO is bundledwith a fullWindows version ofCanoDraw, simplifying theproduction of publication quality graphics for Canoco data sets of anysize. CanoDraw now alsoincludes modern regressiontools (GLM and GAM) for modelling species responseto the environment or toordination axes.

 
NEW ANALYSES
New is the program PrCoord whichallows you to perform Principal CoordinatesAnalysis and distance based Redundancy Analysis. As in Canoco 4,permutation tests includetests for split-plot designsand related multi-leveldesigns. New numericsresult in faster executionand higher precision,important for large datasets and more accurate significance testing.
 
NEW TOOLS
The Canoco 4.5 packageincludes thenew program CanoMerge to easily merge data sets compiled frommultiple spreadsheets,working around the common 255-column limit ofsome spreadsheet programs.This nicely complementsthe data input fromspreadsheets and other programs via the Windows Clipboard using WCanoImp, familiar from Canoco 4. CanoMerge hastwo extra facilities: itallows to you to delete rarespecies from a data set andit can transform a Canoco formatted file to a TAB delimitedfile that can beimported in spreadsheet programs.
 
SYSTEM REQUIREMENTS
Canoco 4.5 requires Microsoft Windows98 or NT 4.0 orlater versions, includingME, 2000, XP Home and Professional Editions. Youmust also have at least 32MB of internal RAMmemory and 64MB of freedisk space for virtual memory. The maximum datasize that can be analyzedis:
25 000 samples (n)
5000 species (m)
2000 covariables (p)
1000 environmental
variables (q)
Maximum number ofnonzero values in speciesdata is 750 000, maximumvalue for p*n is 1 000 000,maximum value for(q – 8)*n is 500 000.
CanoDraw can visualizeresults from data sets ofany size Canoco 4.5 cananalyze.
 
ON THE MACINTOSH
Canoco for Windowsalso runs under theemulated Windows environments provided bySoft Windowsand Virtual PC under both MacOS 9 and OS X. Performance is acceptablein these environments, including transfer of data toand from the WindowsClipboard. For example, you can copy data from an Excel spreadsheet on the Mac and convert the clipboard to a CANOCO datafile with WCanoImp afterswitching to the emulated PC.
 
NEW MANUAL
Cajo ter Braak and Petr Smilauer haverewritten portionsof the manual for thisrelease to describe the Windows version of CanoDraw and new capabilities of the package. Thebooklet, Unimodal models to relate species to environment,is included withthe package. These collected articles from peerreviewed journals represent a wide array of CANOCO applications. By special arrangement with the originalauthors, the underlyingdata sets are included forexamination and study.Unimodal models remain sunchanged from Canoco 4 and is not included with upgrades.