我有一个数据框,可以使用matplot进行绘制:
> dim(lhbyzone)
[1] 38070 21
> matplot(lhbyzone)
(no error occurs here)
但是,如果我取lh的头部并尝试使用它,会出现奇怪的错误:
> foo <- head(lhbyzone,1000)
> matplot(foo)
Error in `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", :
length of 'dimnames' [1] not equal to array extent
所以,也许与名称有关?
> dimnames(foo)
[[1]]
[1] "1" "2" "3" "4" "5" "6" "7" "8" "9" "10"
[11] "11" "12" "13" "14" "15" "16" "17" "18" "19" "20"
[21] "21" "22" "23" "24" "25" "26" "27" "28" "29" "30"
[31] "31" "32" "33" "34" "35" "36" "37" "38" "39" "40"
...
[951] "951" "952" "953" "954" "955" "956" "957" "958" "959" "960"
[961] "961" "962" "963" "964" "965" "966" "967" "968" "969" "970"
[971] "971" "972" "973" "974" "975" "976" "977" "978" "979" "980"
[981] "981" "982" "983" "984" "985" "986" "987" "988" "989" "990"
[991] "991" "992" "993" "994" "995" "996" "997" "998" "999" "1000"
[[2]]
[1] "time" "z1" "z2" "z3" "z4" "z5" "z6" "z7" "z8" "z9"
[11] "z10" "z11" "z12" "z13" "z14" "z15" "z16" "z17" "z18" "z19"
[21] "z20"
> dim(foo)
[1] 1000 21
> names(foo)
[1] "time" "1" "2" "3" "4" "5" "6" "7" "8" "9"
[11] "10" "11" "12" "13" "14" "15" "16" "17" "18" "19"
[21] "20"
维度看起来一样吗?这很奇怪,因为在原始帧上的matplot可以工作,但在帧的头部却不行。这里可能发生了什么?
编辑,好的,回答一些问题,让我们使用thbyzone而不是lhbyzone,因为它更小,而且让我们使用head而不是head(..,1000)来缩小数据。
> head(thbyzone)
time 1 2 3 4 5 6 7 8 9 10 11
1 1 46 38 44 45 42 44 45 43 41 42 36
2 2 46 36 42 43 42 43 44 44 39 43 32
3 3 45 35 40 41 40 42 41 42 36 43 31
4 4 41 30 36 37 39 38 40 34 35 39 30
5 5 39 30 34 33 40 38 35 30 33 35 34
6 6 35 29 32 32 41 37 35 35 36 35 35
> dimnames(head(thbyzone))
[[1]]
[1] "1" "2" "3" "4" "5" "6"
[[2]]
[1] "time" "1" "2" "3" "4" "5" "6" "7" "8" "9"
[11] "10" "11"
> matplot(head(thbyzone))
Error in `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", :
length of 'dimnames' [1] not equal to array extent
> matplot(as.matrix(head(thbyzone)))
Error in `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", :
length of 'dimnames' [1] not equal to array extent
> matplot(thbyzone[1:6,])
Error in `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", :
length of 'dimnames' [1] not equal to array extent
> class(thbyzone)
[1] "cast_df" "data.frame"
> str(thbyzone)
List of 12
$ time: num [1:39432] 1 2 3 4 5 6 7 8 9 10 ...
$ 1 : int [1:39432] 46 46 45 41 39 35 33 33 36 47 ...
$ 2 : int [1:39432] 38 36 35 30 30 29 28 28 28 33 ...
$ 3 : int [1:39432] 44 42 40 36 34 32 30 30 30 32 ...
$ 4 : int [1:39432] 45 43 41 37 33 32 30 29 30 41 ...
$ 5 : int [1:39432] 42 42 40 39 40 41 38 33 36 43 ...
$ 6 : int [1:39432] 44 43 42 38 38 37 36 36 38 44 ...
$ 7 : int [1:39432] 45 44 41 40 35 35 33 30 31 39 ...
$ 8 : int [1:39432] 43 44 42 34 30 35 34 33 34 41 ...
$ 9 : int [1:39432] 41 39 36 35 33 36 32 31 31 35 ...
$ 10 : int [1:39432] 42 43 43 39 35 35 33 33 35 42 ...
$ 11 : int [1:39432] 36 32 31 30 34 35 32 30 28 30 ...
- attr(*, "row.names")= int [1:39432] 1 2 3 4 5 6 7 8 9 10 ...
- attr(*, "idvars")= chr "time"
- attr(*, "rdimnames")=List of 2
..$ :'data.frame': 39432 obs. of 1 variable:
.. ..$ time: num [1:39432] 1 2 3 4 5 6 7 8 9 10 ...
..$ :'data.frame': 11 obs. of 1 variable:
.. ..$ station_id: int [1:11] 1 2 3 4 5 6 7 8 9 10 ...
> traceback()
.... lots of lines ...
"39405", "39406", "39407", "39408", "39409", "39410", "39411",
"39412", "39413", "39414", "39415", "39416", "39417", "39418",
"39419", "39420", "39421", "39422", "39423", "39424", "39425",
"39426", "39427", "39428", "39429", "39430", "39431", "39432"
))
4: as.matrix.cast_df(y)
3: as.matrix(y)
2: ncol(y <- as.matrix(y))
1: matplot(thbyzone[1:6, ])
更多的尝试:
> foo <- head(thbyzone)
> foo$time <- NULL
> matplot(foo)
Error in `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", :
length of 'dimnames' [1] not equal to array extent
> head(foo)
1 2 3 4 5 6 7 8 9 10 11
1 46 38 44 45 42 44 45 43 41 42 36
2 46 36 42 43 42 43 44 44 39 43 32
3 45 35 40 41 40 42 41 42 36 43 31
4 41 30 36 37 39 38 40 34 35 39 30
5 39 30 34 33 40 38 35 30 33 35 34
6 35 29 32 32 41 37 35 35 36 35 35
编辑:
> options(error=recover)
> matplot(thbyzone[1:6,])
Error in `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", :
length of 'dimnames' [1] not equal to array extent
Enter a frame number, or 0 to exit
1: matplot(thbyzone[1:6, ])
2: ncol(y <- as.matrix(y))
3: as.matrix(y)
4: as.matrix.cast_df(y)
5: `rownames<-`(`*tmp*`, value = c("1", "2", "3", "4", "5", "6", "7", "8", "9"
head
只返回6行。这不是我们要找的foo。我们喜欢一致性,否则我们会认为“嘿嘿,你没有做你认为你在做的事情”。 - Spacedmanhead(.., 1000)
。已经更新了。 - Hugh Perkinsoptions(error = recover)
也可以帮助您... - aL3xanames(foo)
不是NULL
),但除此之外这些都是好问题。@HughPerkins,如果你尝试as.matrix(foo)
会发生什么? - Ben Bolker