[R] substr gives empty output
Luigi Marongiu
marongiu.luigi at gmail.com
Tue Jan 23 11:48:21 CET 2018
Thank you, I got it, now it works good
On Mon, Jan 22, 2018 at 1:58 PM, Howard, Tim G (DEC) <tim.howard at dec.ny.gov>
wrote:
> In
>
> y <- substr(x, i, 1)
>
> your third integer needs to be the location not the number of digits, so
> change it to
>
> y <- substr(x, i, i)
>
> and you should get what you want.
> Cheers,
> Tim
>
> > Date: Sun, 21 Jan 2018 10:50:31 -0500
> > From: Ek Esawi <esawiek at gmail.com>
> > To: Luigi Marongiu <marongiu.luigi at gmail.com>, r-help at r-project.org
> > Subject: Re: [R] substr gives empty output
> > Message-ID:
> > <CA+ZkTxubYDSZ3iqsg_=be9HBA2_3-TE95=mXbh4atvG-
> > ri_ixQ at mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > The reason you get "" is, as stated on the previous response and on the
> > documentation of substr function, the function "When extracting, if
> start is
> > larger than the string length then "" is returned.". This is what
> happens on
> > your function.
> >
> > HTH
> >
> > EK
> >
> > On Sun, Jan 21, 2018 at 3:59 AM, Luigi Marongiu <
> marongiu.luigi at gmail.com>
> > wrote:
> > > Dear all,
> > > I have a string, let's say "testing", and I would like to extract in
> > > sequence each letter (character) from it. But when I use substr() I
> > > only properly get the first character, the rest is empty (""). What am
> > > I getting wrong?
> > > For example, I have this code:
> > >
> > >>>>
> > > x <- "testing"
> > > k <- nchar(x)
> > > for (i in 1:k) {
> > > y <- substr(x, i, 1)
> > > print(y)
> > > }
> > >
> > > [[alternative HTML version deleted]]
> > >
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> >
> >
>
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