[英]R: Subset vector by names
I have a vector with different names and its values. 我有一个具有不同名称及其值的向量。 It is called composite:
它称为复合:
GSM12 GSM13 GSM15 GSM16 GSM17
0.1234 9.345 8.888 5.345 1.234
And I have a second vector with names which are important.I only want those names with its values. 我还有第二个向量,其名称很重要。我只希望这些名称带有其值。 The other names could be deleted.
其他名称可以删除。 The vector is called biopsies.
该载体称为活检。
GSM12 GSM15 GSM16
The result should be like this: 结果应该是这样的:
GSM12 GSM15 GSM16
0.1234 8.888 5.345
I tried the subset() function but it didn't work. 我尝试了subset()函数,但是没有用。 I also tried this:
我也试过这个:
composite[apply(sapply(biopsies, grepl, composite), 1, any)]
But it also didn't work. 但这也没有用。 So how can I do it?
那我该怎么办呢? Thanks
谢谢
x <- c(0.1234, 9.345, 8.888, 5.345, 1.234)
names(x) <- c("GSM12", "GSM13", "GSM15", "GSM16", "GSM17")
y <- c("GSM12", "GSM15", "GSM16")
as @Gregor mentioned: 正如@Gregor提到的:
x[y]
GSM12 GSM15 GSM16
0.1234 8.8880 5.3450
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