r - label above points with rChart Failed with Chinese , -


My problem is just like

* But my label has a Chinese code, my code is so :

  Library (RCHHT) age and lt; - C (1:20) tall & lt; - seq (0.5, 1.90, length = 20) name & lt; - Representative (c ("运营 成本 由 encoding (name) <- 'utf-8' df & lt; - data.frame," 游戏 进行 推广 "," 开始 安全 运行 无 事件 this n1 $ xaxis (axislabel =the age> Strong Text  


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