是否可以修改xaxis以在ggplot2中仅显示一组日期 [英] is it possible to modify xaxis to show only one sets of date in ggplot2

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本文介绍了是否可以修改xaxis以在ggplot2中仅显示一组日期的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有这样的数据框:

 服务器

日期服务器空间
1 2010-01-30 server1 100
2 2010-02-28 Server1 400
3 2010-03-30 Server1 300
4 2010-04-30 Server2 200
5 2010-05-30 Server2 500
6 2010-06-30 Server2 300

基于在这个数据框中,我使用 aggregate 按月对硬盘使用进行分组,并将其存储在一个名为z的数据框中,如下所示。
z

 月份价值
1 2010-01 600
2 2010-02 700
3 2010-03 800
4 2010-04 900
5 2010-05 800
6 2010-06 900

我试图在x上创建一个堆栈图,并使用 ggplot2 在同一个堆栈图顶部的基于z的总计上放置一行。



语法如下:

我必须这样做才能避免(错误:提供给连续缩放的离散值)

  server $ Date< -as.character(server $ Date)

然后执行此操作:

  ggplot(server,aes (Date,Space))+ geom_bar(aes(fill = Server),stat =identity,position =stack)+ theme_bw()+ scale_x_discrete(name =Date)+ scale_y_continuous(Space)+ opts (axis.title.x = theme_text(face =bold,color =#990000,size = 15),axis.text.x = theme_text(angle = 90),axis.title.y = theme_text(face = bold,color =#990000,angle = 90,size = 15))+ geom_smooth(dat a = z,aes(Month,Value,group = 1),method =lm,size = 2,color =darkblue)

这很有效,但在我的x轴上,我有两组数据,看起来非常混乱。是否可以隐藏或抑制x数据框中的日期,并仅在xaxis上显示 z $ Month



我可以用这个:

  scale_x_date(labels = date_format(%m-%Y))
code>

但是当我这样做时,xaxis现在显示所有数据点的01-1970。



* 更新*
让我以其他方式提出这个问题。我想创建一个堆栈图并在堆栈顶部,使用geom_smooth()放置一条线来显示总使用情况。我正在考虑使用x数据框来构建堆栈图,然后为总值创建另一个数据框,并基于总数据框创建geom_smooth()行作为z。这样做,将2个数据值放入x轴。



不是这样做,是否可以在堆栈栏上绘制geom_smooth()数据框?

这是数据帧的输入:

pre $ code >结构(列表(日期=结构(c(1325394000,1325480400,1325566800,
1325653200,1325739600,1325826000,1325912400,1325998800,1326085200,
1326171600,1326258000,1326344400,1326430800,1326517200 ,1326603600,
1326690000,1326776400,1325394000,1325480400,1325566800,1325653200
1325739600,1325826000,1325912400,1325998800,1326085200,1326171600
1326258000,1326344400,1326430800,1326517200,1326603600,1326690000,1326690000
1326776400,1325394000,1325480400,1325566800,1325653200,1325739600
1325826000,1325912400,1325998800,1326085200,1326171600,1326258000
1326344400,1326430800,1326517200,1326603600,1326690000,1326776400
1328072400,1328158800,1328美国化学学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员,美国化学会会员, 1328418000,1328504400,1328590800,
1328677200,1328763600,1328850000,1328936400,1329022800,1329109200,
1329195600,1329282000,1329368400,1329454800,1328072400,1328158800,
1328245200,1328331600,1328418000,1328504400, 1328677200,
1328763600,1328850000,1328936400,1329022800,1329109200,1329195600,
1329282000,1329368400,1329454800,1330578000,1330664400,1330750800,
1330837200,1330923600,1331010000,1331096400,1331182800, 1331269200,
1331355600,1331442000,1331524800,1331611200,1331697600,1331784000,
1331870400,1331956800,1330578000,1330664400,1330750800,1330837200,
1330923600,1331010000,1331096400,1331182800,1331269200,1331355600,
1331442000,13 31516800,1331611200,1331697600,1331784000,1331870400,13335700000,1330678400,1330736003,1330923600,1330923600,133923600,1331090000,1331096400,1331182800,1331269200,1331355600,1331442000,13316412000,1331611200,1331611200,1331611200, 1331697600 1331784000 1331870400 1331956800
)class = c(POSIXct,POSIXt),tzone =),Server = structure(c(1L,
1L,1L,1L, 1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,
2L,2L,2L,2L,2L,2L,2L,2L,2L, 2L,2L,2L,2L,2L,2L,
2L,3L,3L,3L,3L,3L,3L,3L,3L,3L,3L,3L,3L,3L,3L, $ b 3L,3L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,
1L,1L,1L,2L,2L, 2L,2L,2L,2L,2L,2L,2L,2L,2L,
2L,2L,2L,2L,3L,3L,3L,3L,3L,3L,3L,3L, 3L,3L,3L,
3L,3L,3L,3L,3L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,1L,
1L, 1L,1L,1L,1L,2L,2L,2L,2L,2L,2L,2L,2L,2L,2L,2L,2L,3L,3L, 3L,3L,3L,3L,3L,3L,3L,
3L,3L,3L,3L,3L,3L,3L,3L).Label = c(ServerA,ServerB,
ServerC),class =factor空间= c(100,110,110,120,
120,130,130,140,​​140,​​150,150,160,160,170,170,180,200,
220,240, 260,280,300,320,340,360,380,400,420,440,460,
480,500,520,540,560,580,600, 720,
740,760,780,800,820,840,860,880,100,110,110,120,120,
130,130,140,​​140,​​150,150,160, 160,170,170,180,200,220,
240,260,280,300,320,340,360,380,400,420,440,460,480,
500,520, 540,560,580,600,620,640,660,680,700,720,740,
760,780,800,820,840,860,880,550,110,560,120,570, 130,
580,140,​​590,150,600,160,610,170,620,180,200,550,570,
590,610,630,650,670,690,710,
680,700,720,740,760,780,800,820,840,860,880,900,920,
940,960, 980,1000,1020,1000)),.Names = c(Date,Server,
Spac e(),row.names = c(NA,153L),class =data.frame)



z< - structure(list(Month = c 2012-01,2012-02,2012-03),Value = c(21140,
21140,32010)),.Names = c(Month,Value .names = c(NA,
-3L),class =data.frame)


as.Date objects:

  server $ Date<  -  as.Date(server $ Date)
z $ Month< - as.Date(paste0(z $ Month,-01))

ggplot(server,aes(Date,Space))+
geom_bar(aes(fill = Server), (data = z,aes(Month,Value,group = 1),color =darkblue)+
geom_line(data = z,stat =identity,position =stack)+
geom_point ,aes(Month,Value,group = 1),color =darkblue)


I have a data frame like this:

Server

     Date     Server  Space
1 2010-01-30 server1       100
2 2010-02-28 Server1       400  
3 2010-03-30 Server1     300
4 2010-04-30 Server2       200
5 2010-05-30 Server2       500  
6 2010-06-30 Server2       300

based on this data frame, I use aggregate to group Harddisk usage by month and store it in a data frame called z, as below. z

  Month   Value
1 2010-01 600
2 2010-02 700
3 2010-03 800
4 2010-04 900
5 2010-05 800
6 2010-06 900

I am trying to create a stack chart on x and put a line on the total based on z on top of the same stack chart using ggplot2.

syntax is below:

I had to do this to avoid (Error: Discrete value supplied to continuous scale)

server$Date<-as.character(server$Date)

then run this:

ggplot(server, aes(Date, Space)) +  geom_bar(aes(fill=Server), stat="identity", position="stack") + theme_bw() + scale_x_discrete(name="Date") + scale_y_continuous("Space") +  opts(axis.title.x = theme_text(face="bold", colour="#990000", size=15),axis.text.x  = theme_text(angle=90), axis.title.y = theme_text(face="bold", colour="#990000", angle=90, size=15)) + geom_smooth(data=z,aes(Month,Value,group=1), method="lm", size=2, color="darkblue") 

This works but on my xaxis, I have two sets of data, which looks very cluttered. Is it possible to hide or suppress the dates from x data frame and only show z$Month on xaxis?

I can use this:

scale_x_date(labels = date_format("%m-%Y")) 

But when I do this, xaxis is now showing 01-1970 for all data points.

*Update * Let me ask this question in other way. I like to create a stack chart and on top of the stack, put a linear line using geom_smooth() to show where the total usage is going. I was thinking use x data frame to build the stack chart, then create another data frame for the total value and create the geom_smooth() line based on the total data frame as z. Doing it this way, puts 2 data values to the xaxis.

Rather than doing it this way, is it possible to draw geom_smooth() on the stack bar based on x data frame?

This is the dput of the data frame:

server <- structure(list(Date = structure(c(1325394000, 1325480400, 1325566800, 
1325653200, 1325739600, 1325826000, 1325912400, 1325998800, 1326085200, 
1326171600, 1326258000, 1326344400, 1326430800, 1326517200, 1326603600, 
1326690000, 1326776400, 1325394000, 1325480400, 1325566800, 1325653200, 
1325739600, 1325826000, 1325912400, 1325998800, 1326085200, 1326171600, 
1326258000, 1326344400, 1326430800, 1326517200, 1326603600, 1326690000, 
1326776400, 1325394000, 1325480400, 1325566800, 1325653200, 1325739600, 
1325826000, 1325912400, 1325998800, 1326085200, 1326171600, 1326258000, 
1326344400, 1326430800, 1326517200, 1326603600, 1326690000, 1326776400, 
1328072400, 1328158800, 1328245200, 1328331600, 1328418000, 1328504400, 
1328590800, 1328677200, 1328763600, 1328850000, 1328936400, 1329022800, 
1329109200, 1329195600, 1329282000, 1329368400, 1329454800, 1328072400, 
1328158800, 1328245200, 1328331600, 1328418000, 1328504400, 1328590800, 
1328677200, 1328763600, 1328850000, 1328936400, 1329022800, 1329109200, 
1329195600, 1329282000, 1329368400, 1329454800, 1328072400, 1328158800, 
1328245200, 1328331600, 1328418000, 1328504400, 1328590800, 1328677200, 
1328763600, 1328850000, 1328936400, 1329022800, 1329109200, 1329195600, 
1329282000, 1329368400, 1329454800, 1330578000, 1330664400, 1330750800, 
1330837200, 1330923600, 1331010000, 1331096400, 1331182800, 1331269200, 
1331355600, 1331442000, 1331524800, 1331611200, 1331697600, 1331784000, 
1331870400, 1331956800, 1330578000, 1330664400, 1330750800, 1330837200, 
1330923600, 1331010000, 1331096400, 1331182800, 1331269200, 1331355600, 
1331442000, 1331524800, 1331611200, 1331697600, 1331784000, 1331870400, 
1331956800, 1330578000, 1330664400, 1330750800, 1330837200, 1330923600, 
1331010000, 1331096400, 1331182800, 1331269200, 1331355600, 1331442000, 
1331524800, 1331611200, 1331697600, 1331784000, 1331870400, 1331956800
), class = c("POSIXct", "POSIXt"), tzone = ""), Server = structure(c(1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
3L, 3L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 3L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L), .Label = c("ServerA", "ServerB", 
"ServerC"), class = "factor"), Space = c(100, 110, 110, 120, 
120, 130, 130, 140, 140, 150, 150, 160, 160, 170, 170, 180, 200, 
220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 
480, 500, 520, 540, 560, 580, 600, 620, 640, 660, 680, 700, 720, 
740, 760, 780, 800, 820, 840, 860, 880, 100, 110, 110, 120, 120, 
130, 130, 140, 140, 150, 150, 160, 160, 170, 170, 180, 200, 220, 
240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 480, 
500, 520, 540, 560, 580, 600, 620, 640, 660, 680, 700, 720, 740, 
760, 780, 800, 820, 840, 860, 880, 550, 110, 560, 120, 570, 130, 
580, 140, 590, 150, 600, 160, 610, 170, 620, 180, 200, 550, 570, 
590, 610, 630, 650, 670, 690, 710, 730, 750, 600, 620, 640, 660, 
680, 700, 720, 740, 760, 780, 800, 820, 840, 860, 880, 900, 920, 
940, 960, 980, 1000, 1020, 1000)), .Names = c("Date", "Server", 
"Space"), row.names = c(NA, 153L), class = "data.frame")



z <- structure(list(Month = c("2012-01", "2012-02", "2012-03"), Value = c(21140, 
21140, 32010)), .Names = c("Month", "Value"), row.names = c(NA, 
-3L), class = "data.frame")

解决方案

Since you are working with dates (and not DateTimes), you'll find it easier if both your date columns are as.Date objects:

server$Date <- as.Date(server$Date)
z$Month <- as.Date(paste0(z$Month, "-01"))

ggplot(server, aes(Date, Space)) +  
  geom_bar(aes(fill=Server), stat="identity", position="stack") +
  geom_point(data=z,aes(Month,Value,group=1), color="darkblue") +
  geom_line(data=z,aes(Month,Value,group=1), color="darkblue")

这篇关于是否可以修改xaxis以在ggplot2中仅显示一组日期的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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