Hi Duncan
The simples spreadsheet is:
Put a name in the cell, let say "a1"
Put number e.g. 1 below "a1"
Copy the number to enough rows
Select this column and press ctrl-c
result is
> temp<- read.delim("clipboard")
> str(temp)
'data.frame': 1513 obs. of 1 variable:
$ a1: Factor w/ 2 levels "1","a1": 1 1 1 1 1 1 1 1 1 1
...> which(temp$a1=="a1")
[1] 1365>
I tested it in vanilla R
> sessionInfo()
R Under development (unstable) (2017-07-31 r73003)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 14393)
Matrix products: default
locale:
[1] LC_COLLATE=Czech_Czech Republic.1250 LC_CTYPE=Czech_Czech Republic.1250
[3] LC_MONETARY=Czech_Czech Republic.1250 LC_NUMERIC=C
[5] LC_TIME=Czech_Czech Republic.1250
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_3.5.0>
Excel 16 or 15 I am not sure.
R-devel 2015 (69443) works as expected so it started a believe around May or
June this year, when I installed new R version.
I hope it could help to trace the problem. If I can help any further, let me
know.
Best regards
Petr
> -----Original Message-----
> From: Duncan Murdoch [mailto:murdoch.duncan at gmail.com]
> Sent: Wednesday, August 16, 2017 12:35 AM
> To: PIKAL Petr <petr.pikal at precheza.cz>; r-devel at r-project.org
> Subject: Re: [Rd] strange behaviour read.table and clipboard
>
> 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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Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny
pouze jeho adres?t?m.
Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho
odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho
syst?mu.
Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email
jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat.
Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i
zpo?d?n?m p?enosu e-mailu.
V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?:
- vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a
to z jak?hokoliv d?vodu i bez uveden? d?vodu.
- a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout;
Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce
s dodatkem ?i odchylkou.
- trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m
dosa?en?m shody na v?ech jej?ch n?le?itostech.
- odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost
??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn?
pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn?
osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi
?i osob? j?m zastoupen? zn?m?.
This e-mail and any documents attached to it may be confidential and are
intended only for its intended recipients.
If you received this e-mail by mistake, please immediately inform its sender.
Delete the contents of this e-mail with all attachments and its copies from your
system.
If you are not the intended recipient of this e-mail, you are not authorized to
use, disseminate, copy or disclose this e-mail in any manner.
The sender of this e-mail shall not be liable for any possible damage caused by
modifications of the e-mail or by delay with transfer of the email.
In case that this e-mail forms part of business dealings:
- the sender reserves the right to end negotiations about entering into a
contract in any time, for any reason, and without stating any reasoning.
- if the e-mail contains an offer, the recipient is entitled to immediately
accept such offer; The sender of this e-mail (offer) excludes any acceptance of
the offer on the part of the recipient containing any amendment or variation.
- the sender insists on that the respective contract is concluded only upon an
express mutual agreement on all its aspects.
- the sender of this e-mail informs that he/she is not authorized to enter into
any contracts on behalf of the company except for cases in which he/she is
expressly authorized to do so in writing, and such authorization or power of
attorney is submitted to the recipient or the person represented by the
recipient, or the existence of such authorization is known to the recipient of
the person represented by the recipient.