多点时间序列

Question

我试图将多个y值绘制为单个x值（日期）的点。每个时间点都有可变数量的y值。它与在同一图表上绘制多条线不同，因为时间t处的点与时间t + 1处的点之间的关系是未知的。我也不想要一个箱形图。我想清楚地看到每一点。当我尝试绘制这个时，R想要重组x轴，把我的时间序列扔掉。有人可以帮忙吗？

伊恩

windows()
plot(mu ~ date, xlab="Date", ylab="Mean Length (um)")
axis(1, date, format(date, "%b %d"))


site    date    mu
eldo pipe   9/3/2012    89.1365072
eldo pipe   9/3/2012    125.235052
eldo pipe   9/3/2012    135.153096
eldo pipe   9/3/2012    113.847438
eldo pipe   9/3/2012    89.732397
eldo pipe   9/3/2012    111.071991
eldo pipe   9/3/2012    122.437213
eldo pipe   9/3/2012    134.821803
eldo pipe   9/3/2012    110.687526
eldo pipe   9/3/2012    100.9783758
eldo pipe   9/3/2012    131.321202
eldo pipe   9/3/2012    123.56519    
eldo pipe   9/3/2012    136.517857
eldo pipe   9/26/2012   96.0162055
eldo pipe   9/26/2012   102.1533248
eldo pipe   9/26/2012   119.846013
eldo pipe   9/26/2012   130.1969079
eldo pipe   9/26/2012   135.3865
eldo pipe   9/26/2012   140.3697581
eldo pipe   9/26/2012   108.4733771
eldo pipe   9/26/2012   122.834203
eldo pipe   9/26/2012   137.80903
eldo pipe   9/26/2012   120.292561
eldo pipe   9/26/2012   133.746842
eldo pipe   11/2/2012   106.26084
eldo pipe   11/2/2012   125.249647
eldo pipe   11/2/2012   129.028305
eldo pipe   11/2/2012   137.932549
eldo pipe   11/2/2012   147.8790966
eldo pipe   11/2/2012   116.63048
eldo pipe   11/2/2012   121.930454
eldo pipe   11/2/2012   86.85304
eldo pipe   11/2/2012   130.63338
eldo pipe   11/2/2012   146.3816077
eldo pipe   11/2/2012   84.58692
eldo pipe   11/2/2012   103.925925
eldo pipe   11/2/2012   111.2692061
eldo pipe   11/2/2012   120.093059
eldo pipe   11/2/2012   131.782033

Answer 1

您可以使用抖动的stripchart来查看每次的所有积分。

> par(mar = c(5, 5, 4, 2))
> stripchart(mu ~ date, data = dat, method = "jitter", pch = 1, las = 1)