Displaying 20 results from an estimated 2000 matches similar to: "19 Rails Tricks Most Rails Coders Don''t Know"
2008 Feb 01
6
epoll increasing latency big time
Sorry this is going to be a bit vague, but I''ve noticed something rather odd
going on with EventMachine on Linux.
I''ve written something uses EventMachine to proxy HTTP to other processes.
On OS X, it works great, adding only about 20% extra latency into the
connection when proxying versus connecting to the original backend process
directly, so a 5ms connection might now take
2006 Aug 13
4
Experienced RoR Coders Needed!
Devlounge is looking for advanced RoR coders who may be willing to share
their knowledge by writting quality articles on Ruby and what it can
accomplish. These can be tutorials, discussions, opinion pieces, getting
started guides, etc. You''re articles will be seen by 350-500 unique
people daily! Plus, you''ll get a great link back in our killer authors
index.
To apply to be
2015 Dec 07
2
OpenSSH FIPS 140-2 support using OpenSSL FIPS modules?
On 12/04/2015 10:02 PM, security veteran wrote:
> Hi Jakub,
>
> Another question I have is, are there any changes in this patch RedHat
> Linux distribution specific? The reason I ask is, if I port the changes to
> other Linux distribution like Debian or Ubuntu, do you see any issues?
I don't think there is something distro-specific. Distro specific parts
are handled in other
2009 Jul 07
3
how to read point shp file to R?
I am new with R and want do some analysis with a point vector data file. Any
help is appreciate. Sunny
[[alternative HTML version deleted]]
2011 Dec 21
1
Reg : Using RJDBC to read UTF-8 characterrs
Hi All,
We are using the following dataset which contains UTF-8 characters and is
stored in a MySQL database. When we use
RODBC and read the data, the characters are read correctly.But when we read
using RJDBC ,the characters are read like ???????????????????????????1
Can you please let me know how we can read the UTF-8 characters as it is
done by RODBC.
ID code Outlook Temperature Humidity
2008 May 13
1
Hard(?) lock when reassociating ath with wpa_supplicant on RELENG_7
I seem to be able to lock my machine by going into wpa_cli and asking it
to 'reassoc'. The reason for question mark after "hard" is that debug
information (caused by wlandebug and athdebug) is being printed on the
console. The only way to get machine's attention is to hold power button
for 8 seconds.
Note: manual reassociation is just the handy way to reproduce the
problem
1999 Apr 15
2
Excel 'save as HTML' problem with Samba 2.0
Hello,
Eversince I upgraded Samba to 2.0 version I've gotten so many calls from
the users regarding Excel 'save as HTML' problem.
What seems to be happening is that the users cannot save their Excel
spreadsheet as html file when they were able to with the previous Samba
version we had installed (Samba 1.9.18p10).
According to MS 'knowledge database', this is a known MS Excel
1998 Jul 09
1
lwn reports the Samba team could use coders and documenters
I read in todays (July 9, 1998) edition of the Linux Weekly News
that
"the Samba team could use coders, documenters and
packagers as a result of a temporary dip in the
volunteer resources available to them
(caused by an unfortunate set of co-incidences,
though we haven't heard the details yet)."
and "This has slowed the Samba effort a bit."
The full text of this news
2016 Apr 25
3
Please assist -- Unable to remove '-' character from char vector--
Hi,
I have a char vector with year values. Some cells have single year
value '2001-' and some have range like 1996-2007.
I need to remove hyphen character '-' from all the values within the
character vector named as 'end'. After removing the hyphen I need to
get the last
number from the cells where there are year range values i.e if the
cell has range 1996-2007, the code
2015 Dec 04
2
OpenSSH FIPS 140-2 support using OpenSSL FIPS modules?
Thanks Jakub.
How does this patch match the OpenSSH source version? Does the patch only
applicable to OpenSSH version 6.6.1, or does other version available as
well?
Thanks.
On Fri, Dec 4, 2015 at 4:26 AM, Jakub Jelen <jjelen at redhat.com> wrote:
>
> On 12/04/2015 03:26 AM, security veteran wrote:
>
>> 3. Is there a way to re-compile OpenSSH by turning on/off some flags
2010 Sep 27
9
Rails 3 - Creating a comment and then returning the Partial with JUST the new comment
Here''s the flow I have...
First, jquery posts the new comment to the server:
$.post(this.action,$(this).serialize(),null,''script'');
Then in the comments controller:
def create
@comment = lots of stuff going on here but it works...
if @comment.save
flash[:notice] = "Successfully created comment."
2010 Oct 12
6
Rpart query
Hi,
Being a novice this is my first usage of R.
I am trying to use rpart for building a decision tree in R. And I have the
following dataframe
Outlook Temp Humidity Windy Class
Sunny 75 70 Yes Play
Sunny 80 90 Yes Don't Play
Sunny 85 85 No Don't Play
Sunny 72 95 No Don't Play
Sunny 69 70 No Play
Overcast 72 90 Yes Play
Overcast 83 78 No Play
Overcast 64 65 Yes Play
Overcast 81 75
2009 Feb 02
1
survfit using quantiles to group age
I am using the package Design for survival analysis. I want to plot a
simple Kaplan-Meier fit of survival vs. age, with age grouped as
quantiles. I can do this:
survplot(survfit(Surv(time,status) ~ cut(age,3), data=veteran)
but I would like to do something like this:
survplot(survfit(Surv(time,status) ~ quantile(age,3), data=veteran)
#will not work
ideally I would like to superimpose
2016 Apr 25
0
Please assist -- Unable to remove '-' character from char vector--
Hi Sunny,
Try this:
# notice that I have replaced the fancy hyphens with real hyphens
end<-c("2001-","1992-","2013-","2013-","2013-","2013-",
"1993-2007","2010-","2012-","1984-1992","1996-","2015-")
splitends<-sapply(end,strsplit,"-")
last_bit(x)
2009 Jun 08
3
caret package
Hi all
I am using the caret package and having difficulty in obtaining the results
using regression, I used the glmnet to model and trying to get the
coefficients and the model parameters I am trying to use the
extractPrediction to obtain a confusion matrix and it seems to be giving me
errors.
x<-read.csv("x.csv", header=TRUE);
y<-read.csv("y.csv", header=TRUE);
2016 Apr 25
1
Please assist -- Unable to remove '-' character from char vector--
Thank you Jim,
The code did assist me to get the what I needed.
Also, I learnt that there are different types of dashes
(en-dash/em-dash/hyphen) as explained on this site :
http://www.punctuationmatters.com/hyphen-dash-n-dash-and-m-dash/
I achieved it by executing below command after going through this page
on stackoverflow:
2008 May 29
4
ruby's simple_format method is not working for spaces.
Ruby''s simple_format method is not working for spaces. so how to add and
what to add in simple format method code so it also work for spaces?
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2008 Feb 01
2
ssh wrapper scripts
Hello
This is an idea someone had that I thought of implementing, but I don't
know whether I have the time. Regardless, I would only do it if you
would include it with the OpenSSH distribution, so I would need to know
your opinion.
OpenSSH is a very useful an very versatile tool. Not only a remote
terminal - but also an FTP-like client/server, an app for copying files,
an aid for port
2008 Dec 04
2
Ruby fun with MegaMillions
I thought I would write a lottery number generator since I have not had any
luck winning the big jackpot - http://megamillions.com/. So far, after over
1.2 million tries, I still have not hit all the numbers from yesterday: 2,
17, 22, 32, 51, 35 (last one is the mega ball).
Fun little project that and I thought others would be interested. Let me
know if you have a cleaner implementation in mind.
2004 Dec 09
1
ROracle/DBI problem with dbExecStatement on RH Linux
Hi,
first thanks to Sunny Ho (and David James for the pointer) for resolving
the problem of the empty rows returned from ROracle.
However, I have a problem still:
> library(ROracle)
> ora <- dbDriver("Oracle")
> con <- dbConnect(ora, user = USER, password = PWD, dbname = DBNAME)
> rs <- dbExecStatement(con, "select * from USER_TABLES")
Error in