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R-ggplot geom_光滑面_网格CI未显示_R_Ggplot2_Broom - Fatal编程技术网

R-ggplot geom_光滑面_网格CI未显示

R-ggplot geom_光滑面_网格CI未显示,r,ggplot2,broom,R,Ggplot2,Broom,我很难理解为什么我的数据中没有显示置信区间。当我在另一个数据集上复制代码时,代码似乎工作正常。例如,在mtcars上 代码是 mtols = mtcars %>% group_by(am) %>% do(lm0 = lm(disp ~ mpg*gear + vs, data=.)) %>% augment(., lm0) %>% mutate(ymin=.fitted-1.96*.se.fit, ymax=.

我很难理解为什么我的数据中没有显示置信区间。当我在另一个数据集上复制代码时,代码似乎工作正常。例如,在mtcars上

代码是

mtols = mtcars %>% group_by(am) %>% do(lm0 = lm(disp ~ mpg*gear + vs, data=.)) %>% 
               augment(., lm0) %>% 
               mutate(ymin=.fitted-1.96*.se.fit, ymax=.fitted+1.96*.se.fit) 
生成绘图

mtols %>% ggplot(aes(mpg, .fitted) ) + 
  geom_smooth(data = mtols, aes(mpg, .fitted, group = gear, colour = gear, fill= gear), method="lm") +
  theme_minimal() + facet_grid(~am)
我得到了置信区间

但是,这不适用于我的数据。有人能帮我找出这里出了什么问题吗?我将非常感激

我使用

dt = new %>% group_by(day) %>% do(lm0 = lm(y ~ year*class, data=.)) %>% augment(., lm0) %>% 
  mutate(ymin=.fitted-1.96*.se.fit, ymax=.fitted+1.96*.se.fit) 

dt$year = as.numeric(as.character(dt$year)) 
绘图(这是一个案例较少的示例,但整个数据集的结果相同)

CI
不显示

知道我做错了什么吗

奇怪的是,当我不在这里使用
facet\u网格时,
CI
工作得很好

我的数据样本

library(broom) 
library(dplyr)
library(ggplot2)

new = structure(list(id = structure(c(844084L, 114510L, 14070410L, 
942483L, 13190105L, 421369L, 301384L, 251789L, 11011210L, 11280408L, 
278575L, 310410L, 16260105L, 11110815L, 18260101L, 14260501L, 
10580L, 15090210L, 19140410L, 13230615L, 246511L, 20040812L, 
14260114L, 287623L, 16090620L, 20131007L, 835743L, 453390L, 395808L, 
363617L), label = "Household identifier", class = c("labelled", 
"integer")), year = structure(c(1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 
2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 
2L, 2L, 1L, 1L, 1L, 1L), .Label = c("2000", "2015"), class = "factor"), 
day = c("Weekend", "Weekend", "Weekend", "Weekdays", "Weekdays", 
"Weekend", "Weekdays", "Weekend", "Weekend", "Weekdays", 
"Weekend", "Weekdays", "Weekdays", "Weekend", "Weekend", 
"Weekdays", "Weekdays", "Weekend", "Weekdays", "Weekdays", 
"Weekdays", "Weekend", "Weekend", "Weekend", "Weekend", "Weekend", 
"Weekend", "Weekdays", "Weekdays", "Weekdays"), class = structure(c(1L, 
1L, 2L, 2L, 1L, 2L, 2L, 4L, 2L, 2L, 3L, 2L, 1L, 4L, 1L, 3L, 
2L, 3L, 2L, 4L, 2L, 1L, 3L, 2L, 1L, 4L, 3L, 2L, 4L, 1L), .Label = c("Higher Managerial", 
"Lower Managerial", "Intermediate", "Manual and Routine"), class = "factor"), 
y = c(270, 730, 180, 0, 0, 290, 90, 650, 510, 0, 10, 200, 
200, 180, 0, 0, 140, 260, 110, 740, 260, 0, 390, 610, 0, 
0, 500, 0, 10, 170)), class = "data.frame", row.names = c(NA, 
-30L), .Names = c("id", "year", "day", "class", "y"))

正在绘制置信区间。我们无法看到它们,因为每个
天只有两个唯一的点

dt2 <- dt %>% filter(class == "Higher Managerial")
plot(.fitted ~ year, data=subset(dt2, day=="Weekend"))
编辑

这里是一个版本,我们使用最初计算的
ymin
ymax
,并使用
geom_功能区绘制它

dt %>% ggplot(aes(year, .fitted,group = class, colour = class, fill= class)) + 
  geom_line() +
  geom_ribbon(aes(ymin=ymin, ymax=ymax), alpha=0.2) + 
  theme_bw() + facet_grid(~day) 

这两张图似乎不一样,这是一个问题,你确定这是
组=类
而不是
组=天
?@Mamounbenghzal否
,因为我想在
天之前显示
类*年
的交互作用随时间的影响。因此,我希望
facet\u网格
将日期的类型分开。感谢该示例产生了一个错误。错误:
x
标签必须相同type@PierreLafortune你指的是哪一个
x
?这是你的第一列
Classes'labeled',integer'
。但没关系,问题是你需要更多的点才能看到置信区间。是的,你是对的,我只有两天的观察。但理论上,我仍然应该能够围绕条件平均值绘制
CI
。所以,当周末和工作日都在一起的时候,它能工作吗?什么是解决方案?你是说它“不起作用”,但它确实起作用了。它正在绘制置信区间,它们不是宽区间。对不起,我不明白。你所说的
wide
间隔是什么意思。例如,
ggplot(mtcars,aes(am,disp))+geom_point()+geom_smooth(method=“lm”)
仍然绘制置信区间,即使
am
只有两个点?您可能要查找的是
geom_ribbon
而不是
smooth
。因为“平滑”是计算它自己的回归线。你已经演过了。”ribbon'将允许您使用已创建的
ymin
ymax
。我添加了一个带有
geom_ribbon
和数据中的ymin和ymax的示例。
dt2 <- dt %>% filter(class == "Higher Managerial")
plot(.fitted ~ year, data=subset(dt2, day=="Weekend"))
confint(lm(.fitted ~ year, data=subset(dt2, day=="Weekdays")))
#                     2.5 %      97.5 %
#   (Intercept) 9503.333333 9503.333333
# year            -4.666667   -4.666667
dt %>% ggplot(aes(year, .fitted,group = class, colour = class, fill= class)) + 
  geom_line() +
  geom_ribbon(aes(ymin=ymin, ymax=ymax), alpha=0.2) + 
  theme_bw() + facet_grid(~day)