我有data.frame,其中3列为Name,Variable&值。 我的data.frame就像(每个值以逗号分隔)
Name,Variable,Value
a,cycle1,00:01:67
b,cycle1,00:05:20
c,cycle1,00:28:27
a,cycle2,00:02:58
b,cycle2,00:25:18
c,cycle2,00:27:45
a,cycle3,00:37:09
b,cycle3,00:29:18
c,cycle3,00:53:24
我想绘制一个堆积的条形图,其中X轴是可变的& Y轴是值
我写了以下脚本
Graph<- ggplot(data = dataFrame,
aes(x = dataFrame$Variable, y = dataFrame$Value, fill = Name)) +
geom_bar(stat = "identity")
通过上面的脚本图即将到来但是它没有在y轴上显示全范围,即使我无法在Y轴上用一些步长值改变范围。
我试过strptime,如下所示
dataFrame$TimeCol <- strptime(dataFrame$Value, format = "%H:%M:%S")
Graph <- ggplot(dataFrame,
aes(x=dataFrame$Variable, y=dataFrame$TimeCol,fill = dataFrame$Name)) +
geom_bar(color="black",stat = "identity")
现在也希望图表不会出现,Y轴范围就像2000,2100,2200 ...... 然后我尝试添加一个额外的列名称TimeInSeconds,实际上是将Value列转换为秒,然后编写代码,如
Graph <- ggplot(data = dataFrame,
aes(x = dataFrame$Variable, y = dataFrame$TimeInSeconds, fill = Name)) +
geom_bar(stat = "identity")
现在所需的图表,Y轴具有适当的时间范围,以秒为单位,步长为1000.
但是在几秒钟内代替时间,我想要的是hh:mm:ss格式,并且具有适当的范围&amp;步数值。我搜索了Stack Overflow,R中的食谱但是没有得到正确的结果。任何人如果可以请提出一些解决方案。
答案 0 :(得分:0)
Hacky,但这有效:
library(ggplot2)
m <- matrix(c("a","cycle2", "00:01:57",
"b","cycle1", "00:05:20",
"c","cycle1", "00:28:27",
"a","cycle2", "00:02:58",
"b","cycle2", "00:25:18",
"c","cycle2", "00:27:45",
"a","cycle3", "00:37:09",
"b","cycle3", "00:29:18",
"c","cycle3", "00:53:24"), nrow = 9, ncol=3, byrow=TRUE)
start_time = strptime("00:00:00", format = "%H:%M:%S")
end_time = strptime("01:00:00", format = "%H:%M:%S")
breaks = seq(0, 125, length.out = 6)
labels = c("00:00:00", "00:20:00", "00:40:00",
"01:00:00", "01:20:00", "01:40:00")
dataFrame <- data.frame(m)
names(dataFrame) <- c("Name","Variable","Value")
dataFrame$Time <- strptime(dataFrame$Value, format = "%H:%M:%S")
dataFrame$TimeInSeconds <- as.numeric(dataFrame$Time - start_time)
p <- ggplot(data = dataFrame) +
geom_bar(aes(x = dataFrame$Variable,
y = dataFrame$TimeInSeconds,
fill = factor(Name)), stat="identity") +
scale_y_continuous(
limits = c(0, 125),
breaks = breaks,
labels = labels
)
p