To Whom It May Concern:

I have noticed that all of the hyphens ("-") are changed to periods (".") when I try to read.table() and the headers contain "-"

I am using R 2.13 on a RedHat system.

Here is the situation:

I have the following a tab-delimited text file saved as test.txt

File1-a.txt

File1-b.txt

File2-a.txt

File2-b.txt

1

1

2

1

1

2

3

2

1

1

2

3

1

2

3

4




When I use:
>example <- read.table("test.txt", header = TRUE, sep = "\t")

>example
File1.a.txt

File1.b.txt

File2.a.txt

File2.b.txt

1

1

2

1

1

2

3

2

1

1

2

3

1

2

3

4


Notice that all of the "-" are changed to "."

I read the help(read.table) along with a google search, but I can't find why this is happening.

Is there a way to prevent this from happening?

Thanks in advance,
Mike


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