R - 从txt文件导入大型数据集和数据集

时间:2016-07-21 19:40:04

标签: r dataframe import bigdata

我正在使用R对.txt文件进行简单的绘图。但是,我的.txt文件太大了。它大约是1 GB(由3列和41,633,303行组成)。

当我调用read.delim2将其导入数据框时,我收到一条错误消息,指出矢量不能那么大。有办法解决这个问题吗?

我最终想用这些数据制作一个多面的直方图。

来自txt文件

25      Large   Inversion
26      Large   Inversion
27      Large   Inversion
28      Large   Inversion
29      Large   Inversion
30      Large   Inversion
31      Large   Inversion
32      Large   Inversion
33      Large   Inversion
34      Large   Inversion
35      Large   Inversion
36      Large   Inversion
37      Large   Inversion
38      Large   Inversion
39      Large   Inversion
40      Large   Inversion
41      Large   Inversion
42      Large   Inversion
43      Large   Inversion
44      Large   Inversion
45      Large   Inversion
46      Large   Inversion
47      Large   Inversion
48      Large   Inversion
49      Large   Inversion
50      Large   Inversion
51      Large   Inversion
52      Large   Inversion
53      Large   Inversion
54      Large   Inversion
55      Large   Inversion
56      Large   Inversion
57      Large   Inversion
58      Large   Inversion
58      Large   Inversion

阅读命令:

mydf <- read.delim2(file = "/home/hayden/polyRNA/Bowtier/datatolook/allData.txt", header = F)

错误

Error: cannot allocate vector of size 500.0 Mb

0 个答案:

没有答案