[英]How to get tick marks between the bars in R?
I'd like to get the tick marks between consumption bars, such as in http://hante.home.xs4all.nl/plugwise_dagoverzicht_281009_2.jpg . 我想在消耗条之间打勾,例如在http://hante.home.xs4all.nl/plugwise_dagoverzicht_281009_2.jpg中 。
It's more logical to get the consumption between two dates, or two times... 在两个日期或两次之间获取消耗量是更合乎逻辑的...
However, I don't see how to do that in R. Anybody? 但是,我在R中看不到该怎么做。有人吗?
I do have such an example table, called data: 我确实有一个示例表,称为数据:
date nombre delta
2014-02-01 0 0
2014-02-08 120 120
2014-02-15 205 85
2014-02-22 280 75
2014-02-29 350 70
The code I managed so far to write down is: 到目前为止,我管理下来的代码是:
data$date <- as.POSIXct(data$date, format = "%Y-%m-%d")
data <- data[-2]
barplot(height=data[,2], names=data[,1], las=2)
But the "ticks" are just below the bars... as you can see on http://imgur.com/0WE7ouI . 但是“滴答声”就在条形图的正下方...正如您在http://imgur.com/0WE7ouI上看到的那样。
You didn't provide any code whatsoever. 您没有提供任何代码。 How is your data represented?
您的数据如何表示? How are you plotting the bars?
您如何绘制条形图?
If you are using package lattice
's barchart(..., horizontal=FALSE)
, you can manually provide new axis tickslabels using the argument scales=list(x=list(at=seq_len(numBars+1) - 0.5, labels=yourLabels)))
where numBars
is the number of bins on your x-axis. 如果您使用的是包装
lattice
的barchart(..., horizontal=FALSE)
,则可以使用scales=list(x=list(at=seq_len(numBars+1) - 0.5, labels=yourLabels)))
,其中numBars
是x轴上的bin数。 See ?barchart
. 参见
?barchart
。
If you are using the more primitive barplot
, you can draw an offset axis yourself: 如果您使用的是更原始的
barplot
,则可以自己绘制偏移轴:
mids <- barplot(x, axisnames=FALSE)
axis(1, at = mids - (mids[2]-mids[1])/2, labels = yourLabels)
Either way, obviously you can shift to the right instead by changing offset signs, or add both outside ticks for numBins
+1 labels. 无论哪种方式,显然您都可以向右移动而不是更改偏移量标志,或者为
numBins
+1标签添加两个外部刻度。
EDIT : With the code+data you added in your edit: 编辑 :使用您在编辑中添加的代码和数据:
mids <- barplot(height=data[,2], axisnames=FALSE)
axis(1, at = mids - (mids[2]-mids[1])/2, labels = data[,1], las=2)
or eg writing it and adding an end date: 或者例如编写并添加结束日期:
mstep <- (mids[2] - mids[1]) / 2
axis(1, at=c(mids[1] - mstep, mids + mstep), labels=c(data[,1], endDate), las=2)
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