Thanks for this submission. It was a solution for some time, but I've finally created my own to add some customization and to make simpler the management of automatic scales and all the elements in general.
Everyone can download and freely modify it for personal use:
I'm trying to make multiple wind roses all at the same scale for the 12 months of the year. I'm having trouble setting them all to the same scale. I believe I need to alter the code around 226 with the variable ncircles but can't quite figure it out any help would be appreciated as having graphs at the same scale for data comparison is key!
Those of you asking about the direction issues, the answer is in the comments below you just need to look :) I figured it out that way but can't remember the exact solution.