draw a chart ggplot2

I want to draw a pie chart by this cod, I drow it successfully but its shape isn't so good. Some information is out of the box
Rplot03
I saved it as both pdf and picture but it is not complete.

We don't really have enough info to help you out. Could you ask this with a minimal REPRoducible EXample (reprex)? A reprex makes it much easier for others to understand your issue and figure out how to help.

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