我无法在任何地方找到相关信息.我知道如何设置它们但想要知道默认值(顶部,右侧,底部和左侧),因此在为绘图设置边距时,它不是一个猜谜游戏.
I'm having problems using grid.edit() from an Rscript. I'm using grid.edit() to increase the thickness of hollow points in the legend and chart. I took this from this post (Change thickness of a marker in ggplot2). Just looks way better IMO. I know that from source files and Rscripts you can get ggplot objects to plot using print(p), but I need to use grid.edit() so I'm not sure how to fix this. Working example below.
My …
有谁知道在函数中反转轴的好方法可以说 y 轴,而不影响绘图image?
假设我想制作以下情节
image(1:10,1:10,matrix(1:100,10,10)).
这工作正常,但如果我想显示从10:1. image不让你做image(10:1,1:10,matrix(1:100,10,10))。我必须创建自己的轴并将它们添加到绘图中还是有更简单的方法?
?timezones 状态 "Most platforms support time zones of the form GMT+n and GMT-n, which assume at a fixed offset from UTC (hence no DST)."
我今年早些时候使用旧代码tz="GMT-8".只有对我的计算机的更改已经更新到R版本"R version 3.2.2 (2015-08-14)"并通过向我的Rprofile添加一行代码从旧用户帐户迁移我的库"C:\Program Files\R\R-3.2.2\library\base\R".只是要详细的代码了.libPaths(c("C:/Users/XXXX XXXX/Documents/R/win-library/3.2",.Library.site)).为什么我的系统突然不接受这种tz格式?我可以更改哪些系统设置来解决此问题?
下面的工作示例.
tdat<-c("11/19/2014 12:45", "11/19/2014 13:00", "11/19/2014 13:15",
"11/19/2014 13:30", "11/19/2014 13:45", "11/19/2014 14:00", "11/19/2014 14:15",
"11/19/2014 14:30", "11/19/2014 14:45", "11/19/2014 15:00")
as.POSIXct(strptime(tdat,"%m/%d/%Y %H:%M",tz="GMT-8"))
Warning messages:
1: In strptime(tdat, "%m/%d/%Y %H:%M", tz = "GMT-8") :
unknown timezone 'GMT-8'
2: In as.POSIXct.POSIXlt(strptime(tdat, "%m/%d/%Y %H:%M", …Run Code Online (Sandbox Code Playgroud) 您好,我想使用该data.table软件包在R中执行滚动联接。在“日期”(Date)列上进行连接时有多个匹配项,因此我想在“字段”(Field)列上使用byin中的参数data.table来防止来自不同字段的数据连接在一起。
示例数据
d1<-structure(list(Field = c("6", "W62", "6", "6", "12S", "19-1",
"6", "6", "12S", "7", "6", "12S", "W62", "6", "12S", "W62", "12S",
"6", "6", "7", "12S", "12S", "W62", "7", "12S", "6", "12S", "7",
"12S", "7", "6", "7", "12S", "7", "6", "6", "6", "6", "12S",
"7", "7", "6", "6", "12S", "7", "12S", "12S", "12S", "19-1",
"6"), Date = structure(c(16994, 17240, 17240, 17401, 17048, 17417,
17387, 17394, 17382, 17414, 17029, 17403, 17045, 17359, 17179,
17281, 17152, 16972, …Run Code Online (Sandbox Code Playgroud) 我正在ggplot中制作一些图形,并且在不指定x和y位置的情况下无法弄清楚如何在图形文本中进行绘制。
比方说,我在做这样的曲线图。
sp <- ggplot(mpg, aes(hwy, cty, label = "sometext"))+
geom_point()
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我想在每个图形中添加以相同方式打印的标签。调用以下命令仅在提供给的每个x,y值处打印文本aes。
sp + geom_text()
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我可以操纵提供的xy数据geom_text()以确保文本在图形之间保持相同的相对位置,但是有没有一种简单的方法可以通过默认位置(例如“顶部”,“底部”等)来调用位置?即sp + geom_text(position="top")。