你如何使用qplot按大小订购一个条形图？ [重复]

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I use the arrange function to put my data frame in order by deaths, but when I try to do a bargraph of the top 5, they are in alphabetical order. How do I get them into order by value? Do I need to use ggplot?

我使用Arrange函数按死亡顺序放置我的数据框，但是当我尝试做前5的条形图时，它们按字母顺序排列。如何按价值使它们按顺序排列？我需要使用ggplot吗？

library(dplyr)
library(ggplot2)
EventsByDeaths <- arrange(SumByEvent, desc(deaths))

> head(EventsByDeaths, 10)
Source: local data frame [10 x 3]

           EVTYPE deaths     damage
1         TORNADO   4662 2584635.60
2  EXCESSIVE HEAT   1418      53.80
3            HEAT    708     277.00
4       LIGHTNING    569  338956.35
5     FLASH FLOOD    567  759870.68
6       TSTM WIND    474 1090728.50
7           FLOOD    270  358109.37
8    RIP CURRENTS    204     162.00
9       HIGH WIND    197  170981.81
10      HEAT WAVE    172    1269.25

qplot(y=deaths, x=EVTYPE, data=EventsByDeaths[1:5,], geom="bar", stat="identity")

1 个解决方案

#1

You could use the reorder() function

您可以使用reorder（）函数

EventsByDeaths <- transform(EventsByDeaths, EVTYPE = reorder(EVTYPE, -deaths))

Then your original qplot call should work as desired. Hope this helps!

然后你的原始qplot调用应该按照需要工作。希望这可以帮助！