日期时间字符串为x值的等高线图 [英] contour plot with date-time strings as x values
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问题描述
我正在尝试绘制一个彩色轮廓图,以x轴表示时间,以y表示深度,以z值表示温度。时间为:
I am trying to produce a color contour plot showing time along the x axis, depth along the y and temperature as the z values. Time is given as:
"2011-01-01 00:01"
i.e. "%Y-%m-%d %H:%M"
有没有一种产生颜色的方法等高线图,并使用
Is there a method for producing the color contour plot from these, and using
filled.contour(Time,Depth,temp)
示例:
time <- c("2011-01-01 01:00", "2011-01-01 02:00", "2011-01-01 03:00",
"2011-01-01 04:00")
depth <- seq(1,10,by = 1)
seq1 <- seq(1:40)
temp <- matrix(seq1, 10)
temp的每一列代表不同的时间,每一行代表不同的深度。
Every column of temp represents a different time and every row represents a different depth.
推荐答案
这对我有用:
time2 <- as.POSIXct(time)
结果:
> time2
## [1] "2011-01-01 01:00:00 EST" "2011-01-01 02:00:00 EST"
## [3] "2011-01-01 03:00:00 EST" "2011-01-01 04:00:00 EST"
现在绘制它:
filled.contour(time2,depth,t(temp))
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