r图形与可视化
R 报错:Each group consists of only one observation(拟合线画不出来)
geom_smooth() 按分组拟合,但某个分组只有一个点,无法拟合。
报错原文
Warning: Computation failed... Each group consists of only one observation.为什么会报这个错
geom_smooth() 按分组拟合,但某个分组只有一个点,无法拟合。
怎么解决
去掉 colour/group 映射让全样本拟合,或把过细的分组合并。
代码示例
# 全局拟合
ggplot(df, aes(x, y)) + geom_point() + geom_smooth(method = "lm")
# 分组但每组至少 2 个点
df %>% count(group) %>% filter(n >= 2)同工具的其他报错
- R 报错:Discrete value supplied to continuous scale(离散值喂给连续标度)
- R 报错:Aesthetics must be either length 1 or the same as the data
- R 报错:stat_count() can only have an x or y aesthetic(柱状图映射错误)
- R 报错:object 'x' not found(ggplot 图层找不到变量)
- R 报错:Continuous value supplied to discrete scale(连续值喂给离散标度)
- R 报错:geom_point requires the following missing aesthetics: x and y
报错解决了,但方法还没搞懂?
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