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##### 林分材積 m^3/ha (人工林のみ) 川口泰平(2012) volume<-vh*0.38*100 windows(6.5,7) ### キャンバス load("x-y-volume.dat") ### データの読み込み volume[volume==0]<-NA ### 0値を対象から除外 filled.contour(x,y,volume, ### 作図 level=c(100,200,300,400,500,600,1200), col=c("yellow1","yellow2","yellow3","red","red1","red2","red3","red4"), plot.axes={axis(1);axis(2);map()}, main=" 林分材積(人工林のみ) m^3/ha") |