Hello,
I'm trying to automatically download online data using a URL. Half the time
the code works, the other time I get this error:
Error in file(con, "r") : cannot open the connection
But I cannot for the life of me figure out why it works sometimes and not
others. Reading online data is relati
Hello,I want to use "Cytoscape" to construct co-expression network for
coding-lncoding (control/tretment situation).I calculated correlation by R for
control and treatment and now I want to prepare input data for cytoscape,
I want molecules (genes and lncRNA) as nodes andcorrelation weighting t
Oh, after seeing John's answer, I realized I misread your x*(-1) bit
as x-1. His reply is how it should be done.
The sillier ifelse() solution is:
ifelse(x>0,-x,abs(x) )
My remark about going through a tutorial are still germane, however.
-- Bert
Bert Gunter
"The trouble with having an open m
Do Not do this!
?ifelse ## (is vectorized; or use subscripting)
> x <- c(NA,5,0,-3)
> ifelse(x>0,x-1, abs(x))
[1] NA 4 0 3
Please spend some time with an R tutorial or two -- there are many
good ones on the web. This is basic stuff covered in them.
Cheers,
Bert
Bert Gunter
"The troubl
Hi Alejandro,
How about:
-sign(x) * sign(x) * x
Jim
On Fri, Feb 10, 2017 at 6:30 AM, Alejandro wrote:
> Hello,
>
> I’ve tried googling for an answer to this but I simply can’t find something
> that fixes my problem. I have a long numerical vector with positive, negative
> and null values. I
Dear Alejandro,
If I follow what you want to do, you can just negate the vector:
> x <- c(-10, 0, 10, NA)
> (x <- -x)
[1] 10 0 -10 NA
I hope this helps,
John
-
John Fox, Professor
McMaster University
Hamilton, Ontario, Canada
Web: http://socserv.mcmaste
Hello,
I’ve tried googling for an answer to this but I simply can’t find something
that fixes my problem. I have a long numerical vector with positive, negative
and null values. I want to revert the sign of the positive and negative values
and for zero to remain zero. I’ve written a function th
> Ulrik Stervbo
> on Thu, 9 Feb 2017 14:37:57 + writes:
> Hi Georg,
> maybe someone here knows, but I think you are more likely to get answers
to
> Rstudio related questions with RStudio support:
> https://support.rstudio.com/hc/en-us
> Best,
> Ulrik
In
Hi Georg,
maybe someone here knows, but I think you are more likely to get answers to
Rstudio related questions with RStudio support:
https://support.rstudio.com/hc/en-us
Best,
Ulrik
On Thu, 9 Feb 2017 at 12:35 wrote:
> Hi All,
>
> I would like to make a backup of my RStudio IDE options I conf
I figured I should follow-up to say the function is not broken, rather
it was me not paying close attention to recent release notes.
Frank Harrell kindly informed me (thanks Frank) that with recent
versions of Hmisc/rms I should use options(prType="latex") for LaTeX
output to behave correctly.
Hi All,
I would like to make a backup of my RStudio IDE options I configure using
"Tools/Global Options" from the menu bar. Searching the web did not reveal
anything.
Can you tell me where RStudio IDE does store its configuration?
Kind regards
Georg
[[alternative HTML version delete
Dear R users,
I am pleased to announce that the package mfe (Meta-Feature Extractor) is
now
available on CRAN (https://cran.r-project.org/package=mfe).
The mfe package extracts meta-features from datasets to support the design
of
recommendation systems based on Meta-Learning. The meta-features, a
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