Read ?data.frame
In particular, notice the check.names argument.
On December 9, 2018 7:11:52 AM PST, Michael Dewey <li...@dewey.myzen.co.uk>
wrote:
>Dear Jinsong
>
>Try cbind(x = 1:3, mat)
>and see if that helps
>
>Michael
>
>On 09/12/2018 15:05, Jinsong Zhao wrote:
>> Hi there,
>>
>> In the following mini-example, I hope to keep the column names of
>mat, but failed.
>>
>> # mini-example
>>> mat <- matrix(1:9, nrow = 3)
>>> colnames(mat) <- paste("(", 1:3, ")", sep = "")
>>> mat
>> (1) (2) (3)
>> [1,] 1 4 7
>> [2,] 2 5 8
>> [3,] 3 6 9
>>> data.frame(x = 1:3, mat)
>> x X.1. X.2. X.3.
>> 1 1 1 4 7
>> 2 2 2 5 8
>> 3 3 3 6 9
>>
>> Any hints will be really appreciated.
>>
>> Best,
>> Jinsong
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
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>> and provide commented, minimal, self-contained, reproducible code.
>>
--
Sent from my phone. Please excuse my brevity.
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