如下图，用R绘制boxplot, 部分数据未显示在图形中，如chamber， passive flux sampling, WT method等，求助各位大神；编码为：T<-c("FS","loose housing","litter","TS","NV","MV","solid floor","slatted floor","rubber mat","scraped","flushed","pit","Tracer decay method","CO2 balance method","inverse dispersion","anemometers","chamber","passive flux sampling","WT method","Innova","gas analyser","IR-spectrometer","Ogawa","open-path lasers","Spring","Summer","Fall","Winter","different seasons")
par(las=2,pin=c(10,10),mar=c(12,5,1,1)+0.1) #图形边界
NH3$Type <- factor(NH3$Type, levels=T, ordered=TRUE) #对定性变量按要求排序
boxplot(EF~Type,NH3,ylab="NH3 Emission Factors, g/d/AU",range=1.5,boxwex=0.5, staplewex =1, outwex =1,cex.lab=1.2,cex.axis=1.2)