Removed k rows containing missing values

Posted 2021-12-08 Data+Science+Insight

Removed k rows containing missing values

目录

Removed k rows containing missing values

问题：

解决：coord_cartesian

#所有的点都在范围内

 #如果使用jitter有可能超出范围也会发生类似错误

---

问题：

ggplot(mtcars, aes(mpg, hp)) + 
  geom_point() +
  scale_y_continuous(limits=c(0,300)) +  # Change this to limits=c(0,335) and the warning disappars
  geom_smooth(method="lm")

> 
> ggplot(mtcars, aes(mpg, hp)) + 
+     geom_point() +
+     scale_y_continuous(limits=c(0,300)) +  # Change this to limits=c(0,335) and the warning disappars
+     geom_smooth(method="lm")
`geom_smooth()` using formula 'y ~ x'
Warning messages:
1: Removed 1 rows containing non-finite values (stat_smooth). 
2: Removed 1 rows containing missing values (geom_point). 
> 

解决：coord_cartesian

使用coord_cartesian保留所有数据点；

ggplot(mtcars, aes(mpg, hp)) + 
  geom_point() +
  coord_cartesian(ylim=c(0,300)) +
  geom_smooth(method="lm")

#所有的点都在范围内

library(ggplot2)

# All points are visible in the plot
ggplot(mtcars, aes(mpg, hp)) + 
  geom_point()

 #如果使用jitter有可能超出范围也会发生类似错误

library(ggplot2)

range(mtcars$hp)
#> [1]  52 335

# No jitter -- no error message
ggplot(mtcars, aes(mpg, hp)) + 
    geom_point() +
    scale_y_continuous(limits=c(0,335))


# Jitter is too large -- this generates the error message
ggplot(mtcars, aes(mpg, hp)) + 
    geom_point() +
    geom_jitter(position = position_jitter(w = 0.2, h = 0.2)) +
    scale_y_continuous(limits=c(0,335))
#> Warning: Removed 1 rows containing missing values (geom_point).

参考：R
参考：Explain ggplot2 warning: "Removed k rows containing missing values"