2009-06-04 matplot 天文 R matplot、憶えました。 matplot(JDmag[,1],JDmag[,2:6], pch="●○△□x", col=c("green","blue", "red", "black", "black"), ylim=rev(c(9,13)), xlab="JD", ylab="mag.", main="V4368 Sgr")
