similar to: Numerical Derivative / Numerical Differentiation of unknown funct ion

Ah... I searched for half an hour for this function... you know, the help function in R could really be a lot better... But wait a minute... looking at this, it appears you have to pass in an expression. What if it is an unknown function, where you only have a handle to the function, but you cannot see it's implementation ? Will this work then ? -----Original Message----- From: Berton Gunter

Hi, Suppose I have an arbitrary function: arbfun<-function(x) {...} Is there a robust implementation of a numerical derivative routine in R which I can use to take it's derivative ? Something a bit more than simple division by delta of the difference of evaluating the function at x and x+delta... Perhaps there is a way to do this using D or deriv but I could not figure it out.

Hi there, I have a function which has a variable called show as an input: richardson.grad <- function(func, x, d=0.01, eps=1e-4, r=6, show=F){ # do some things if(show) { cat("\n","first order approximations", "\n") print(a.mtr, 12) } #do more things and return } The show variable is being used as a flag to show intermediate

# Newbie alert # I am wanting to multiply the rows in a dataframe by a vector. # However, the default behavior appears to be for the vector to be applied # column wise. For example: vct <- 1:4 df <- data.frame(c1 = 5:10, c2= 6:11, c3=7:12, c4=8:13) multTheTwo <- vct * df multTheTwo # This results in the vector getting cycled columnwise # c1 c2 c3 c4 # 1 5 18 7 24 # 2 12 28 16 36 # 3

Hi all, I was trying to rebuild mtr (http://vault.centos.org/6.7/os/Source/SPackages/mtr-0.75-5.el6.src.rpm) and I keep getting: ==== Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.gu9Ds0 + umask 022 + cd /root/rpmbuild/BUILD + '[' /root/rpmbuild/BUILDROOT/mtr-0.75-5.el6.x86_64 '!=' / ']' + rm -rf /root/rpmbuild/BUILDROOT/mtr-0.75-5.el6.x86_64 ++ dirname

On 8 March 2016 at 17:22, Digimer <lists at alteeve.ca> wrote: > On 08/03/16 11:36 AM, James Hogarth wrote: > > On 8 March 2016 at 16:15, Digimer <lists at alteeve.ca> wrote: > > > >> On 08/03/16 07:11 AM, James Hogarth wrote: > >>> On 8 March 2016 at 10:07, Leon Fauster <leonfauster at googlemail.com> > >> wrote: > >>>

On 8 March 2016 at 16:15, Digimer <lists at alteeve.ca> wrote: > On 08/03/16 07:11 AM, James Hogarth wrote: > > On 8 March 2016 at 10:07, Leon Fauster <leonfauster at googlemail.com> > wrote: > > > >> Am 08.03.2016 um 01:50 schrieb Digimer <lists at alteeve.ca>: > >>> I'm not surprised, given that it is in the repo. That's why I was

On 8 March 2016 at 19:02, Digimer <lists at alteeve.ca> wrote: > On 08/03/16 01:51 PM, James Hogarth wrote: > > On 8 March 2016 at 17:22, Digimer <lists at alteeve.ca> wrote: > > > >> On 08/03/16 11:36 AM, James Hogarth wrote: > >>> On 8 March 2016 at 16:15, Digimer <lists at alteeve.ca> wrote: > >>> > >>>> On

On 8 March 2016 at 19:13, Digimer <lists at alteeve.ca> wrote: > On 08/03/16 02:08 PM, James Hogarth wrote: > > On 8 March 2016 at 19:02, Digimer <lists at alteeve.ca> wrote: > > > >> On 08/03/16 01:51 PM, James Hogarth wrote: > >>> On 8 March 2016 at 17:22, Digimer <lists at alteeve.ca> wrote: > >>> > >>>> On

Hi, I have a data-frame r (shown below is a subset) with the following column names: date time sample vct norm hct deltact $time has 8 levels: 0h, 0.5h, .....24h. $deltact holds real numbers. I want to subset this dataframe by the levels of $time. For all the rows which have r$time == "0h" I would like to convert the present value of r$deltact to 0. Any pointers to a

On 8 March 2016 at 19:36, Digimer <lists at alteeve.ca> wrote: > On 08/03/16 02:32 PM, James Hogarth wrote: > >>>> https://bugzilla.redhat.com/show_bug.cgi?id=1315856 > >>> > >>> What's odd is how it works in Fedora using mock but not EPEL6 with mock > >> ... > >>> got to be down to how the build roots are constructed. >

Hey Nicolas, That did it. I ran that export command you suggested, then launched *, everything worked fine. I'm still looking for info on what that command actually does. Can you shed some light please? Thanks. JR -----Original Message----- From: JR Richardson [mailto:jr.richardson@cox.net] Sent: Tuesday, December 30, 2003 6:44 PM To: 'asterisk-users@lists.digium.com' Subject:

On Wed, Jan 20, 2010 at 2:42 PM, JR Richardson <jmr.richardson at gmail.com> wrote: > Hi All, > > I'm using Asterisk 1.4 branch and checking the status of some SIP > Peers with the functions ${SIPPEER(101:status)} and the result is "OK > (48 ms)". ?Seems to work fine. > > Now I would like to use the function CUT to set a variable with the > 'OK'

I am trying to trouble shoot one of my ISP's network and compare to my other ISPs offering. Although network 1 is reasonably fast and has low enough latency, voice quality is not good and the reason for this is not readily apparent using standard network tools. What tools can be used to assess the quality of the network in terms of it's suitability for voice? I am using ping, mtr,

> -----Original Message----- > From: JR Richardson [mailto:jmr.richardson@gmail.com] > Sent: Saturday, June 17, 2006 2:30 PM > To: asterisk-users@lists.digium.com; Douglas Garstang > Subject: Voicemail with NFS (working, I think) > > I'm using a stand-alone VM server and exporting the VM files ro for > MWI function only. All my registration servers mount the remote

I want to record all phone calls made inbound and outbound. I'm new so having a hard time getting this started. Here is what I have so far but isn't working. Can someone help me out? Thanks, [macro-record-on] exten => s,1,SetVar(CALLFILENAME=${DATETIME}-${ARG2}-${ARG1}) exten => s,2,Monitor(wav,${CALLFILENAME}) [sip] include => macro-record-on include => iaxtel exten

I had the same problem yesterday. I thought it might have been a realtime problem. Guess not. Bloody annoying too. > -----Original Message----- > From: JR Richardson [mailto:jr.richardson@cox.net] > Sent: Tuesday, March 21, 2006 2:52 PM > To: asterisk-users@lists.digium.com > Subject: [Asterisk-Users] VoiceMailMain(@context) Problem with Option > 5(Advanced) > > > Hi

I apologize, but the fix I was thinking of wasn't directly related to this. It was in app_voicemail.c, but related to using the channel's context for the Directory application. The fix for your issue may be indirectly related, though. I would open a bug. Regards, - Brad -----Original Message----- From: asterisk-users-bounces@lists.digium.com

Is there a way to add onsubmit functionality to a form_remote_tag with an additional javascript directive? eg I''d like for an inline javascript to make the form''s div container hidden as soon as the button is pressed to avoid having it possibly get pressed again ( sometimes the rails response is slow enough for a user to think they need to re-press it ). example: <div

Hi All, I have 1.4.9.1 setup, with the compiler flags enabled for T38, and have a Mediatrix 2102 and a Linksys SPA 8000-G1. I can pass faxes between devices but can't seem to invoke T38 pt UDPTL. It's enabled in sip.conf [general] and well as the [peer]. I get an error at the CLI: WARNING[3096]: chan_sip.c:14149 handle_request_invite: RTP re-invite after T38 session not handled yet !