2DCLASS, A 2-DIMENSIONAL DISTANCE CLASS ANALYSIS SOFTWARE FOR THE PERSONAL-COMPUTER

被引：38

作者：

NELSON, SC ^{[1
]}

MARSH, PL ^{[1
]}

CAMPBELL, CL ^{[1
]}

机构：

[1] N CAROLINA STATE UNIV,DEPT STAT,RALEIGH,NC 27695

来源：

PLANT DISEASE | 1992年 / 76卷 / 04期

关键词：

D O I：

10.1094/PD-76-0427

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

2DCLASS is microcomputer software capable of performing Gray's two-dimensional distance class analysis of spatial pattern of plant disease. The program allows for rapid and concise analysis of the spatial pattern of binomial (presence/absence) data within a two-dimensional matrix (e.g., rows and columns of plants). The procedure is particularly useful for the detection and quantification of nonrandom spatial patterns, average cluster size, distance between or among clusters, relative cluster location within a lattice, within-row and across-row aggregation, and edge effects. The software also generates a map of observed spatial pattern and is tolerant of missing data points. Instructions (with examples) for use of 2DCLASS and guidelines and cautions for interpretation of program output are provided.

引用

页码：427 / 432

页数：6

共 11 条

[1]

CAMPBELL CL, 1990, INTRO PLANT DISEASE

[2] OCCURRENCE OF BINUCLEATE RHIZOCTONIA SPP ON AZALEA AND SPATIAL-ANALYSIS OF WEB BLIGHT IN CONTAINER-GROWN NURSERY STOCK [J].