是否可以使用兩個條件繪製數據幀?如何結合兩個條件來做一個情節?
我有這樣的數據幀:
tdat=structure(list(X = structure(c(1L, 3L, 2L, 1L, 3L, 2L, 1L, 3L,
2L, 1L, 3L, 2L, 1L, 3L, 2L, 1L, 3L, 2L), class = "factor", .Label = c("AS",
"Dup", "MCH")), variable = structure(c(1L, 1L, 1L, 1L, 1L, 1L,
2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L), .Label = c("bot",
"top", "all"), class = "factor"), value = c(1.009936818, 1.414634463,
0.778023226, 1.046037598, 2.370167409, 0.714638976, 0.241778577,
0.684398769, 0.181664019, 0.44099306, 1.212003504, 0.237309508,
1.257632594, 2.329136359, 1.037219886, 1.495702786, 2.990687546,
1.069762508)), .Names = c("X", "variable", "value"), row.names = c(NA,
-18L), class = "data.frame")
> tdat
X variable value
1 AS bot 1.0099368
2 MCH bot 1.4146345
3 Dup bot 0.7780232
4 AS bot 1.0460376
5 MCH bot 2.3701674
6 Dup bot 0.7146390
7 AS top 0.2417786
8 MCH top 0.6843988
9 Dup top 0.1816640
10 AS top 0.4409931
11 MCH top 1.2120035
12 Dup top 0.2373095
13 AS all 1.2576326
14 MCH all 2.3291364
15 Dup all 1.0372199
16 AS all 1.4957028
17 MCH all 2.9906875
18 Dup all 1.0697625
我可以用
qplot(x=variable, y=value,data=tdat).
但是我需要同時使用 「X」 和 「變量」 子組。所以我需要9組:AS-bot,MCH-bot,Dup-bot,AS-top等等。那麼有沒有辦法告訴qplot使用y作爲y = value + X?
這很難說,正是你想要暗算的..也許這會指出正確的方向什麼??不知道雖然:'ggplot(tdat,aes(x = interaction(X,variable),y = value))+ geom_line()'? – Arun
@阿倫明亮!也許你可以添加'sep =' - ''並將其作爲答案! – agstudy
@agstudy,是的,我會的。但也許在OP解釋這是否是他正在尋找的.. :)我不想寫一個答案,並通過編輯..有一張紙,明天讀:P .. – Arun