R中的累积曲线 [英] accumulation curve in R

问题描述

我有几个月的时间在4个地点的物种数据.我已经在R中使用包vegan成功创建了累积图，但是我想在一个图上绘制所有4个站点.

I have data of species at 4 sites over several months. I have successfully created accumulation graphs using package vegan in R but I would like to plot all 4 sites on one graph.

起初，我有一个包含所有站点和月份的数据表，但是当我绘制specaccum时，结果是一条曲线数据，所有数据都与站点无关.

At first I had a data sheet with all sites and months but the when I plotted specaccum the result was a curve of accumulation of all data regardless of site.

因此，我将每个站点拆分为一个单独的数据表，然后将其加载到R中.在每个数据表中，第一行是物种名称，下面的每个其他行是一个月.

Because of this I split each site into a separate data sheet which I loaded into R. In each data sheet the first row is species names and each additional row below that is a month.

例如，我加载了我的网站"FMR"之一的数据.然后我做了以下事情:

For example I loaded the data of one of my sites "FMR". Then I did the following:

FMR <-specaccum(FMRJ2F, "random")
plot(FMR)

我对其他站点PP，DUX，PM也做了相同的操作.如何将所有4条线放在一个图上?

I did the same for my other sites, PP, DUX, PM. How can i put all 4 lines on one plot?

推荐答案

您可以在plot.specaccum(...)

library(vegan)
data(BCI) 
df <- lapply(c(1,21,41,61,81),function(i)specaccum(BCI[,seq(i,i+19)], method="random"))
plot(df[[1]])
for (i in 2:5) plot(df[[i]],add=T, col=i)

此代码段仅将内置BSI数据集加载到vegan中，并通过在BCI中的一部分列上运行specaccum(...)来创建5 specaccum对象的列表.因为您已经有了specaccum对象，所以您不需要这样做.

This code snippet just loads the built-in BSI dataset in vegan, and creates a list of 5specaccum objects by running specaccum(...) on a subset of the columns in BCI. You don't need to to this since you already have the specaccum objects.

然后，我们创建第一个图，并用add=T添加每条新曲线.

Then, we create the first plot, and add each new curve with add=T.

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