R语言绘图（5）-ggplot2学习笔记添加文本注释text,label

geom_text() geom_text( mapping = NULL, data = NULL, stat = “identity”, position = “identity”, …, parse = FALSE, nudge_x = 0, nudge_y = 0, check_overlap = FALSE, hjust=‘center’, vjust=‘center’ angel=0

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