[英]Seaborn FacetGrid barplots and hue
I have a DataFrame with the following structure: 我有一个具有以下结构的DataFrame:
interval segment variable value
4 02:00:00 Night weekdays 154.866667
5 02:30:00 Night weekdays 100.666667
6 03:00:00 Night weekdays 75.400000
7 03:30:00 Night weekdays 56.533333
8 04:00:00 Night weekdays 55.000000
9 04:30:00 Night weekends 53.733333
10 05:00:00 Night weekends 81.200000
11 05:30:00 Night weekends 125.933333
14 07:00:00 Morning weekdays 447.200000
15 07:30:00 Morning weekends 545.200000
16 08:00:00 Morning weekends 668.733333
17 08:30:00 Morning weekends 751.333333
18 09:00:00 Morning weekdays 793.800000
19 09:30:00 Morning weekdays 781.125000
23 11:30:00 Noon weekdays 776.375000
24 12:00:00 Noon weekdays 741.812500
25 12:30:00 Noon weekends 723.000000
26 13:00:00 Noon weekends 734.562500
27 13:30:00 Noon weekends 763.882353
28 14:00:00 Afternoon weekdays 810.411765
31 15:30:00 Afternoon weekdays 855.411765
32 16:00:00 Afternoon weekdays 824.882353
33 16:30:00 Afternoon weekends 768.529412
34 17:00:00 Afternoon weekends 790.812500
35 17:30:00 Afternoon weekends 809.125000
I want to produce a faceted grid of bar plots, one for each variable (weekdays/weekends) and then colour the bars according to the "segment" column. 我想生成一个条形图条形图,每个变量一个(工作日/周末),然后根据“段”列为条形图着色。
Producing the two bar plots is very straightforward: 制作两个条形图非常简单:
g = sns.FacetGrid(melted, col="variable")
g.map(sns.barplot,'interval','value')
This produces (I know the xlabels are wrong, I can correct that): 这会产生(我知道xlabels是错的,我可以纠正):
I'm stuck at colouring the bars according to "segment". 我根据“段”坚持着色吧。 Per the docs, all I need to do is add the variable when instantiating the FacetGrid and set some palette: 根据文档,我需要做的就是在实例化FacetGrid时添加变量并设置一些调色板:
g = sns.FacetGrid(melted, col="variable",hue="segment",palette="Set3")
g.map(sns.barplot,'interval','value')
The bars are stacked in front of each other instead of being spread across the whole interval. 这些条彼此堆叠而不是遍布整个区间。 What am I missing here? 我在这里错过了什么?
Because interval
is nested within the x
variable ( segment
), you need to tell barplot
about all of the possible levels of the x
variable, so that they are not drawn on top of each other: 因为interval
嵌套在x
变量( segment
)中,所以你需要告诉barplot
关于x
变量的所有可能级别,以便它们不会相互barplot
:
times = df.interval.unique()
g = sns.FacetGrid(df, row="variable", hue="segment",
palette="Set3", size=4, aspect=2)
g.map(sns.barplot, 'interval', 'value', order=times)
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