From murdoch.duncan at gmail.com  Wed Aug 16 00:34:51 2017
From: murdoch.duncan at gmail.com (Duncan Murdoch)
Date: Tue, 15 Aug 2017 18:34:51 -0400
Subject: [Rd] strange behaviour read.table and clipboard
In-Reply-To: <6E8D8DFDE5FA5D4ABCB8508389D1BF88FFAAAB50@SRVEXCHCM301.precheza.cz>
References: <6E8D8DFDE5FA5D4ABCB8508389D1BF88FFAAAB50@SRVEXCHCM301.precheza.cz>
Message-ID: <da145467-18b0-bc61-e3b1-6f18281d88ac@gmail.com>

On 15/08/2017 10:03 AM, PIKAL Petr wrote:
> Dear all
>
> I used to transfer data from excel to R by simple ctrl-c and read.delim("clipboard") construction. I know it is a bad practice but it is easy and for quick exploratory work it is OK. However after changing to new R devel few days ago I encountered weird behaviour. I tried one or two columns.

You haven't posted something that is reproducible.  I don't have Excel, 
but I can cut and paste from Libreoffice, and I don't see this. 
However, it's not the same spreadsheet as you used, so I wouldn't be 
comfortable saying I did what you did.

Please reduce the size of your spreadsheet if you can, and then post 
instructions for how to construct it, and what to cut and paste from it. 
  Then others can try what you did and see if this is specific to your 
machine, to that particular version of R-devel, to Excel, etc.

Duncan Murdoch


> In case of 2 columns, header is repeated after 526 items
>> mar<-read.delim("clipboard")
>> which(mar$a2=="a1")
> [1]  525 1051 1577
>> diff(which(mar$a2=="a1"))
> [1] 526 526
> and only first header item is repeated.
>
> In case of one column, header is repeated after 1107 items
>
>> mar<-read.delim("clipboard")
>> diff(which(mar$a2=="a2"))
> [1] 1107 1107
>
> And all items in object are therefore changed to factor.
>
> BTW, readxl package works on same excel file smoothly.
>
> I will try to download the most recent R version to check it, but it could take some time due to our IT issues.
>
> Best regards
> Petr
>
>> version
>                _
> platform       x86_64-w64-mingw32
> arch           x86_64
> os             mingw32
> system         x86_64, mingw32
> status         Under development (unstable)
> major          3
> minor          5.0
> year           2017
> month          07
> day            31
> svn rev        73003
> language       R
> version.string R Under development (unstable) (2017-07-31 r73003)
> nickname       Unsuffered Consequences
>
>
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[Rd] strange behaviour read.table and clipboard
Duncan Murdoch