vod vos
2019-Oct-08 15:33 UTC
[R] How to map points to a fixed points position, then draw contours to the mapped points?
Hello, How to map points to a fixed points position, then draw contours to the mapped points? A data frame like this: r <- rep(seq(0,3.8,0.2), 256) PI257 <- seq(0,360,360/256) PI256 <- PI257[-257] PI25631 <- rep(PI256, 20) El <- rnorm(5120, mean = 42, sd = 4) xyz <- data.frame(r, PI25631, EI) How to map y points to the fixed position defined by x and y in a polar system, using R base plot functions or ggplot2 (aes mapping) to achieve a similar figure like the link: https://www.clspectrum.com/archive/2009/October/images/CLS_October_A10_Fig04.jpg Sincerely yours, [[alternative HTML version deleted]]