问题描述
我刚开始使用R而我无法执行以下任务：我在工作目录中的单独纯文本文件中有大约130个语言示例。我想做的是使用扫描导入它们并保留它们的文件名。
具体来说，我想做的是使用以下内容：
I just started using R and I am having trouble performing the following task: I have approximately 130 language samples in separate plain text files sitting in my working directory. What I would like to do is import them using scan and retain their file names.Specifically, what I would like to do is using something like:
Patient01.txt <-scan("./Patient01.txt", what = "character")
Patient02.txt <-scan("./Patient02.txt", what = "character")
...
Patient130.txt <-scan("./Patient130.txt", what = "character")
有没有办法使用* apply这样的命令来自动化这个过程？
Is there a way to use a command such as *apply to automate the process?
推荐答案
这是一种自动化的方法进程
Here is one way to automate the process
# read txt files with names of the form Patient*.txt
txt_files = list.files(pattern = 'Patient*.txt');
# read txt files into a list (assuming separator is a comma)
data_list = lapply(txt_files, read.table, sep = ",")
如果你知道它是什么，你可以更改分隔符。将数据保存为数据帧列表很方便，因为它更容易投入向量化操作或稍后循环。
You can change the separator if you know what it is. It is convenient to keep the data as a list of data frames since it is easier to throw into a vectorized operation or loops later.
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