R ggplot - 错误stat_bin需要连续的x变量 [英] R ggplot - Error stat_bin requires continuous x variable
问题描述
我的表是data.combined结构如下:
'data.frame':1309 obs。 12个变量:
$生存:因子w / 3等级0,1,无:1 2 2 2 1 1 1 1 2 2 ...
$ Pclass:因子w / 3等级1,2,3:3 1 3 1 3 3 1 3 3 2 ...
$名称:因子w / 1307等级Abbing,Anthony先生.. :109 191 358 277 16 559 520 629 417 581 ...
$性别:第2 1 1 1 2 2 2 2 1 1 ...
$年龄:第22 38 26 35 35 NA 54 2 27 14 ...
$ SibSp:int 1 1 0 1 0 0 0 3 0 1 ...
$ Parch:int 0 0 0 0 0 0 0 1 2 0 ...
$票务:因数为929关卡110152,110413,..:524 597 670 50 473 276 86 396 345 133 ...
$票价:7.25 71.28 7.92 53.1 8.05 ...
$客舱:187个等级的因子,A10,A14,..:1 83 1 57 1 1 131 1 1 1 ...
$上船:因子w / 4水平,C,Q,S:4 2 4 4 4 3 4 4 4 2 ...
$标题:因子有4级主人,小姐。 ,..:3 3 2 3 3 3 3 1 3 3 ...
我想画画一个图表来反映标题和生存之间的关系,分类d由Pclass。我使用了下面的代码:
ggplot(data.combined [1:891,],aes(x = Title,fill = )+
geom_histogram(binwidth = 0.5)+
facet_wrap(〜Pclass)+
ggtitle(Pclass)+
xlab(Title)+
ylab(Total count)+
labs(fill =Survived)
然而,这会导致错误:错误:StatBin需要连续的x变量,x变量是离散的。也许你想stat =count?
如果我将变量Title更改为数字: data.combined $ Title < - as.numeric(data.combined $ Title)
则代码有效,但图中的标签也是数字(如下)。请告诉我为什么会发生,以及如何解决它。谢谢。
顺便说一句,我在Mac El Capital上使用R 3.2.3。 图表:代替先生,小姐,x轴的女士显示数字值1,2,3,4
总结上述评论的答案:
$ b $ 1 - 替换 geom_histogram(binwidth = 0.5)
with geom_bar()
。然而,这种方式不允许自定义binwidth。
2 - 使用 stat_count(width = 0.5)
而不是 geom_bar()
或 geom_histogram(binwidth = 0.5)
会解决它。
My table is data.combined with following structure:
'data.frame': 1309 obs. of 12 variables:
$ Survived: Factor w/ 3 levels "0","1","None": 1 2 2 2 1 1 1 1 2 2 ...
$ Pclass : Factor w/ 3 levels "1","2","3": 3 1 3 1 3 3 1 3 3 2 ...
$ Name : Factor w/ 1307 levels "Abbing, Mr. Anthony",..: 109 191 358 277 16 559 520 629 417 581 ...
$ Sex : num 2 1 1 1 2 2 2 2 1 1 ...
$ Age : num 22 38 26 35 35 NA 54 2 27 14 ...
$ SibSp : int 1 1 0 1 0 0 0 3 0 1 ...
$ Parch : int 0 0 0 0 0 0 0 1 2 0 ...
$ Ticket : Factor w/ 929 levels "110152","110413",..: 524 597 670 50 473 276 86 396 345 133 ...
$ Fare : num 7.25 71.28 7.92 53.1 8.05 ...
$ Cabin : Factor w/ 187 levels "","A10","A14",..: 1 83 1 57 1 1 131 1 1 1 ...
$ Embarked: Factor w/ 4 levels "","C","Q","S": 4 2 4 4 4 3 4 4 4 2 ...
$ Title : Factor w/ 4 levels "Master.","Miss.",..: 3 3 2 3 3 3 3 1 3 3 ...
I want to draw a graph to reflect the relationship between Title and Survived, categorized by Pclass. I used the following code:
ggplot(data.combined[1:891,], aes(x=Title, fill = Survived)) +
geom_histogram(binwidth = 0.5) +
facet_wrap(~Pclass) +
ggtitle ("Pclass") +
xlab("Title") +
ylab("Total count") +
labs(fill = "Survived")
However this results in error: Error: StatBin requires a continuous x variable the x variable is discrete. Perhaps you want stat="count"?
If I change variable Title into numeric: data.combined$Title <- as.numeric(data.combined$Title)
then the code works but the label in the graph is also numeric (below). Please tell me why it happens and how to fix it. Thanks.
Btw, I use R 3.2.3 on Mac El Capital.
Graph: Instead of Mr, Miss,Mrs the x axis shows numeric values 1,2,3,4
Sum up the answer from the comments above:
1 - Replace geom_histogram(binwidth=0.5)
with geom_bar()
. However this way will not allow binwidth customization.
2 - Using stat_count(width = 0.5)
instead of geom_bar()
or geom_histogram(binwidth = 0.5)
would solve it.
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