I would like to run a for loop with an index going from 0 to 499 but the
following seems to miss out the first value:
C <- 499
for (i in 0:C)
The alternative is:
C <- 500
for (i in 1:C)
{
#Then every time I use i, I replace it with i-1
}
Is this a good way to do it or is tere a better way?
Thank you,
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Hi, what about this:
C <- 0:499
for (i in C)
{
cat (i," ")
}
Best regards,
Andris Jankevics
AIO
Groningen Bioinformatics Centre
Groningen Biomolecular Sciences and Biotechnology Institute
University of Groningen
Kerklaan 30, Haren, 9751 NN, The Netherlands
On Mon, Dec 12, 2011 at 11:44, Thomas Chesney <
Thomas.Chesney@nottingham.ac.uk> wrote:
> I would like to run a for loop with an index going from 0 to 499 but the
> following seems to miss out the first value:
>
> C <- 499
> for (i in 0:C)
>
> The alternative is:
>
> C <- 500
> for (i in 1:C)
> {
> #Then every time I use i, I replace it with i-1
> }
>
> Is this a good way to do it or is tere a better way?
>
> Thank you,
>
> ThomasThis message and any attachment are intended solely for the
> addressee and may contain confidential information. If you have received
> this message in error, please send it back to me, and immediately delete
> it. Please do not use, copy or disclose the information contained in this
> message or in any attachment. Any views or opinions expressed by the
> author of this email do not necessarily reflect the views of the University
> of Nottingham.
>
> This message has been checked for viruses but the contents of an attachment
> may still contain software viruses which could damage your computer system:
> you are advised to perform your own checks. Email communications with the
> University of Nottingham may be monitored as permitted by UK legislation.
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
[[alternative HTML version deleted]]
Hi, On Mon, Dec 12, 2011 at 6:44 AM, Thomas Chesney <Thomas.Chesney at nottingham.ac.uk> wrote:> I would like to run a for loop with an index going from 0 to 499 but the following seems to miss out the first value: > > C <- 499 > for (i in 0:C)First off, you've named your variable for an existing function, which can cause all kinds of problems. Second, this should work just fine, as it does for me:> maxvar <- 4 > for(i in 0:maxvar) cat(i, "\n")0 1 2 3 4 What leads you to think that it's not working?> The alternative is: > > C <- 500 > for (i in 1:C) > { > #Then every time I use i, I replace it with i-1 > } > > Is this a good way to do it or is tere a better way?There's a better way to ask your question, at least: give us reproducible code, and explain what you are not seeing that you expect to see, or vice versa. "seems to miss out on the first value" - what happens? If I can't reproduce it, I can't help you solve it. Sarah -- Sarah Goslee http://www.functionaldiversity.org
You may want to check how your loop "misses out" the zero: C <- 5 for (i in 0:C) print(i) ## gives me [1] 0 [1] 1 [1] 2 [1] 3 [1] 4 [1] 5 Regards, Enrico Am 12.12.2011 12:44, schrieb Thomas Chesney:> I would like to run a for loop with an index going from 0 to 499 but the following seems to miss out the first value: > > C<- 499 > for (i in 0:C) > > The alternative is: > > C<- 500 > for (i in 1:C) > { > #Then every time I use i, I replace it with i-1 > } > > Is this a good way to do it or is tere a better way? > > Thank you, > > ThomasThis message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please send it back to me, and immediately delete it. Please do not use, copy or disclose the information contained in this message or in any attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. > > This message has been checked for viruses but the contents of an attachment > may still contain software viruses which could damage your computer system: > you are advised to perform your own checks. Email communications with the > University of Nottingham may be monitored as permitted by UK legislation. > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Enrico Schumann Lucerne, Switzerland http://nmof.net/