如何在数据帧列的基础上设置R plotrix::polar.plot中符号的大小和/或颜色

Question

我有一个数据帧"df"，有三列：距离、方位角和强度。通过plotrix:polar.plot，我使用以下代码得到了一张图

polar.plot(df$distance, df$azimuth, radial.lim=c(0,450),start=90,rp.type = "s", clockwise=TRUE, point.col=4, cex = 1.2)

有没有办法让符号的大小(或颜色(随着"强度"列值的变化而变化？

Answer 1

由于我没有找到任何"直接"解决方案，我使用subset((将数据帧划分为多个数据帧，然后用不同的"cex"/"point.col"设置为"TRUE"的"add"参数绘制每个数据帧。

df3 <- subset(outPutDeg, intensity <= 3)
df5 <- subset(outPutDeg, intensity > 3 & intensity <= 5)
df7 <- subset(outPutDeg, intensity > 5 & intensity <= 7)
df9 <- subset(outPutDeg, intensity > 7 & intensity <= 9)
df11 <- subset(outPutDeg, intensity > 9)
polar.plot(df3$distance, df3$azimuth, radial.lim=c(0,450),start=90,rp.type = "s", clockwise=TRUE, point.col=5, cex = 0.6)
polar.plot(df5$distance, df5$azimuth, radial.lim=c(0,450),start=90,rp.type = "s", clockwise=TRUE, point.col=4, cex = 0.6, add = T)
polar.plot(df7$distance, df7$azimuth, radial.lim=c(0,450),start=90,rp.type = "s", clockwise=TRUE, point.col=3, cex = 0.6, add = T)
polar.plot(df9$distance, df9$azimuth, radial.lim=c(0,450),start=90,rp.type = "s", clockwise=TRUE, point.col=2, cex = 0.6, add = T)
polar.plot(df11$distance, df11$azimuth, radial.lim=c(0,450),start=90,rp.type = "s", clockwise=TRUE, point.col=1, cex = 0.6, add = T)

粗糙有效