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yanjinjg

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otu=read.table("otu.txt",header=T)
otu=otu.matrix(otu) #½«Êý¾ÝÀàÐÍת»¯Îª¾ØÕó
Shannon.Wiener <- diversity(otu,index="shannon" #¼ÆËãÏãũָÊý
Simpson <- diversity(otu,index="simpson"
Inverse.Simpson <- diversity(otu,index="inv"
S <- specnumber(otu)  #¼ÆËãÎïÖÖÀÛ¼ÆÊý
plot(S)
J <- Shannon.Wiener/log(S)   #¼ÆËãPielou¾ùÔȶÈÖ¸Êý
J
3Â¥2015-07-06 09:56:13
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yanjinjg

½ð³æ (СÓÐÃûÆø)

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library(vegan)
otu=read.table("otu.txt",header=T)
otu=otu.matrix(otu)#½«Êý¾ÝÀàÐÍת»¯Îª¾ØÕó
Shannon.Wiener <- diversity(otu,index="shannon"#¼ÆËãÏãũָÊý
Simpson <- diversity(otu,index="simpson"
Inverse.Simpson <- diversity(otu,index="inv"
S <- specnumber(otu)#¼ÆËãÎïÖÖÀÛ¼ÆÊý
plot(S)
J <- Shannon.Wiener/log(S) #¼ÆËãPielou¾ùÔȶÈÖ¸Êý
J
2Â¥2015-07-06 09:54:17
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yanjinjg

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