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I wonder whether there is any possibility to limit the the area of the polar chart to the top half area using polar.plot from package plotrix, i.e. plot only area between 0° and 180°?

I want this graph

enter image description here

look like this graph

enter image description here

EDIT

Sorry, here is a small reproducible data set:

structure(list(length = c(2, 2.5, 5.75, 5.25, 0, 0.75), axis = c(170, 12.9999990463257, 165, 21, 0, 74)), .Names = c("length", "axis"), row.names = c("1", "2", "3", "4", "5", "6"), class = "data.frame")

The plot generating function is:

library(plotrix)

polar.plot(ex.data$length,ex.data$axis,radial.lim=seq(0,8,1),
       labels=seq(0,350,10),label.pos =seq(0,350,10),  rp.type="s", point.col="black", line.col="black")
steveb
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user9328442
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    It is often useful to include code and data that make the plot reproducible. A small set of data that makes it reproducible can be created by using `dput(data)` (assuming `data` is the variable that contains your data). – steveb Feb 07 '18 at 16:21
  • When you edit your post, please put the images in the post and not just a link to them. – steveb Feb 08 '18 at 06:33
  • An apology isn't necessary, the comments are just to help improve things :-) – steveb Feb 08 '18 at 06:34

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