Ggplot条形图不显示任何列[关闭]
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【中文标题】Ggplot条形图不显示任何列[关闭]【英文标题】：Ggplot bar plot not displaying any columns [closed] 【发布时间】：2022-01-10 04:22:04 【问题描述】：我是 R 的初学者，并且有以下相关表（这是完整的）：
Master_Correlation:
Correlation to Hours Worked Explanatory Variable Race
1: -0.0045128223 forborn white
2: 0.0323171103 numchild white
3: -0.1504050423 female numchild interaction white
4: -0.2511609551 female white
5: -0.0383993120 hs white
6: -0.0571333231 somecol white
7: 0.0266860952 college white
8: 0.0859899460 advanced white
9: 0.1392112264 rw white
10: 0.0273427376 rw squared white
11: -0.0207199322 forborn black
12: -0.0008369800 numchild black
13: -0.0979065820 female numchild interaction black
14: -0.1678122716 female black
15: -0.0584001709 hs black
16: -0.0342631733 somecol black
17: 0.0585449347 college black
18: 0.0987732746 advanced black
19: 0.1461246589 rw black
20: 0.0348695563 rw squared black
21: -0.0208368904 forborn hispanic
22: 0.0174493239 numchild hispanic
23: -0.1635641693 female numchild interaction hispanic
24: -0.2438919429 female hispanic
25: -0.0076820903 hs hispanic
26: -0.0337691135 somecol hispanic
27: 0.0376874627 college hispanic
28: 0.0841707245 advanced hispanic
29: 0.1515369812 rw hispanic
30: 0.0637695725 rw squared hispanic
31: -0.0274184696 forborn asian
32: 0.0159808674 numchild asian
33: -0.1081184916 female numchild interaction asian
34: -0.1676908858 female asian
35: -0.0576837324 hs asian
36: -0.0608660949 somecol asian
37: -0.0007628678 college asian
38: 0.1181154823 advanced asian
39: 0.1467355792 rw asian
40: 0.0786165669 rw squared asian
41: -0.0106969158 forborn other
42: 0.0241509708 numchild other
43: -0.1370435450 female numchild interaction other
44: -0.1869553011 female other
45: -0.0391851362 hs other
46: -0.0134763887 somecol other
47: 0.0544616829 college other
48: 0.0602647172 advanced other
49: 0.2082363589 rw other
50: 0.1210709059 rw squared other
请注意，我有 5 场比赛，每场比赛都有一个与 10 个解释变量相关的相关观察。我的目标是制作一个条形图，其中 x 轴是 10 个解释变量的名称，其中有 5 个条形对应于每场比赛的观察。我尝试了以下方法，但打印的是空白图。非常感谢任何帮助（尤其是反馈告诉我为什么这不起作用，以便我可以更好地编码）！
ggplot(Master_Correlation, aes(x= `Explanatory Variable`, y= `Correlation to Hours Worked`,
fill= Race))
数据：
structure(list(`Correlation to Hours Worked` = c(-0.0045128223,
0.0323171103, -0.1504050423, -0.2511609551, -0.038399312, -0.0571333231,
0.0266860952, 0.085989946, 0.1392112264, 0.0273427376, -0.0207199322,
-0.00083698, -0.097906582, -0.1678122716, -0.0584001709, -0.0342631733,
0.0585449347, 0.0987732746, 0.1461246589, 0.0348695563, -0.0208368904,
0.0174493239, -0.1635641693, -0.2438919429, -0.0076820903, -0.0337691135,
0.0376874627, 0.0841707245, 0.1515369812, 0.0637695725, -0.0274184696,
0.0159808674, -0.1081184916, -0.1676908858, -0.0576837324, -0.0608660949,
-0.0007628678, 0.1181154823, 0.1467355792, 0.0786165669, -0.0106969158,
0.0241509708, -0.137043545, -0.1869553011, -0.0391851362, -0.0134763887,
0.0544616829, 0.0602647172, 0.2082363589, 0.1210709059), `Explanatory Variable` = c("forborn",
"numchild", "female numchild interaction", "female", "hs", "somecol",
"college", "advanced", "rw", "rw squared", "forborn", "numchild",
"female numchild interaction", "female", "hs", "somecol", "college",
"advanced", "rw", "rw squared", "forborn", "numchild", "female numchild interaction",
"female", "hs", "somecol", "college", "advanced", "rw", "rw squared",
"forborn", "numchild", "female numchild interaction", "female",
"hs", "somecol", "college", "advanced", "rw", "rw squared", "forborn",
"numchild", "female numchild interaction", "female", "hs", "somecol",
"college", "advanced", "rw", "rw squared"), Race = c("white",
"white", "white", "white", "white", "white", "white", "white",
"white", "white", "black", "black", "black", "black", "black",
"black", "black", "black", "black", "black", "hispanic", "hispanic",
"hispanic", "hispanic", "hispanic", "hispanic", "hispanic", "hispanic",
"hispanic", "hispanic", "asian", "asian", "asian", "asian", "asian",
"asian", "asian", "asian", "asian", "asian", "other", "other",
"other", "other", "other", "other", "other", "other", "other",
"other")), row.names = c(NA, -50L), class = c("tbl_df", "tbl",
"data.frame"))
【问题讨论】：
【参考方案1】：OP，你快到了。您已经使用所有必要的映射设置了绘图区域和环境（即，x、y 是什么，以及与fill 颜色对应的是什么）。问题是你没有告诉ggplot你想画点什么！。在ggplot 术语中，这意味着指定一个geom。
在这种情况下，您有 y 和 x 值，因此您需要“柱状”图（严格来说），而不是“条形”图（需要 x 值列表）。只需将+ geom_col() 添加到您的代码中。试试这个：
ggplot(Master_Correlation, aes(x=`Explanatory Variable`, y=`Correlation to Hours Worked`, fill= Race)) +
geom_col()
这将绘制列，但是显示具有相同 x 值的不同颜色的列的默认方法是将它们“堆叠”在彼此的顶部。为了确保它们根据数据中的Race 列水平拆分，您需要告诉geom 进行拆分。这就是ggplot 术语中所说的“躲避”。在这种情况下，这应该有效：
ggplot(Master_Correlation, aes(x=`Explanatory Variable`, y=`Correlation to Hours Worked`, fill= Race)) +
geom_col(position=position_dodge())
【讨论】：
【参考方案2】：您缺少条形的原因是您没有分配几何图形。
library(ggplot2)
gggplot(Master_Correlation, aes(x=Explanatory.Variable, y= Correlation.to.Hours.Worked,
fill= Race)) +
geom_col()
数据：
structure(list(Correlation.to.Hours.Worked = c(-0.0045128223,
0.0323171103, -0.1504050423, -0.2511609551, -0.038399312, -0.0571333231,
0.0266860952, 0.085989946, 0.1392112264, 0.0273427376, -0.0207199322,
-0.00083698, -0.097906582, -0.1678122716, -0.0584001709, -0.0342631733,
0.0585449347, 0.0987732746, 0.1461246589, 0.0348695563, -0.0208368904,
0.0174493239, -0.1635641693, -0.2438919429, -0.0076820903, -0.0337691135,
0.0376874627, 0.0841707245, 0.1515369812, 0.0637695725, -0.0274184696,
0.0159808674, -0.1081184916, -0.1676908858, -0.0576837324, -0.0608660949,
-0.0007628678, 0.1181154823, 0.1467355792, 0.0786165669, -0.0106969158,
0.0241509708, -0.137043545, -0.1869553011, -0.0391851362, -0.0134763887,
0.0544616829, 0.0602647172, 0.2082363589, 0.1210709059), Explanatory.Variable = c(" forborn",
" numchild", "fmale numchild interaction", " female",
" hs", " somecol", " college",
" advanced", " rw", " rw squared",
" forborn", " numchild",
"female numchild interaction", " female",
" hs", " somecol",
" college", " advanced",
" rw", " rw squared",
" forborn", " numchild",
"female numchild interaction", " female",
" hs", " somecol",
" college", " advanced",
" rw", " rw squared",
" forborn", " numchild",
"female numchild interaction", " female",
" hs", " somecol",
" college", " advanced",
" rw", " rw squared",
" forborn", " numchild",
"female numchild interaction", " female",
" hs", " somecol",
" college", " advanced",
" rw", " rw squared"),
Race = c("white", "white", "white", "white", "white", "white",
"white", "white", "white", "white", "black", "black", "black",
"black", "black", "black", "black", "black", "black", "black",
"hispanic", "hispanic", "hispanic", "hispanic", "hispanic",
"hispanic", "hispanic", "hispanic", "hispanic", "hispanic",
"asian", "asian", "asian", "asian", "asian", "asian", "asian",
"asian", "asian", "asian", "other", "other", "other", "other",
"other", "other", "other", "other", "other", "other")), class = "data.frame", row.names = c("1:",
"2:", "3:", "4:", "5:", "6:", "7:", "8:", "9:", "10:", "11:",
"12:", "13:", "14:", "15:", "16:", "17:", "18:", "19:", "20:",
"21:", "22:", "23:", "24:", "25:", "26:", "27:", "28:", "29:",
"30:", "31:", "32:", "33:", "34:", "35:", "36:", "37:", "38:",
"39:", "40:", "41:", "42:", "43:", "44:", "45:", "46:", "47:",
"48:", "49:", "50:"))
【讨论】：
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