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Dear R users, Does anyone know how to write a function involving derivative? i.e. I want to implementing Newton's method in R, so my function is something like x<- x-y/y' I am not sure how to write y' in my function. Can anyone help? In addition, if I want to implementing newton's method several times, what code should I use? Currently, I use the following code.

Hi Guys, i think this is a relatively simple question. I have coded the following polynomial function y= function(x) x^3-2*x^2+1 I need to find the inverse of this, but the code i am using now isnt returning what i want it to. What is the general code for finding an inverse function? Thanks guys _________________________________________________________________ View photos of singles in

Dear List, Does there exist a function that produces a heat map like this one (image 3 of 4): http://www.tdameritrade.com/tradingtools/options360.html?a=HDY&referrer=http%3A%2F%2Fquery.nytimes.com%2Fsearch%2Fsitesearch%3Fquery%3Dheatmaptype%3Dnyt In addition to colors, two other main features I am intersted in are: 1. Proportionality in the size of the grid. 2. Mose-over capability. I may

Hi all, Our section at work is looking at buying a high-powered computer (32 Gb RAM, 64-bit) to be able run models on large datasets and have more processing power for the software we commonly use. We mostly use R to fit GLMs and GAMs. Our department uses Windows as the standard OS (we are upgrading to Vista in the next few months) and so most people would be in favour of having the same OS on

The plastics industry says polycarbonate bottles are safe. http://www.bisphenol-a.org/about/faq.html#g I'm sure Maggie and here friends would say ALL plastic bottles are very dangerous. This lady seems to be at a reasonable middle ground. http://trusted.md/blog/vreni_gurd/2007/03/29/plastic_water_bottles Polycarbonate plastics the kind of bottle you bought contains BPA. "In 2006 Europe

Hi Guys, Im trying to find the exponential of a matrix. Can someone please help me do this? Thanks a lot _________________________________________________________________ View photos of singles in your area Click Here =1&lage=18&uage=55&cl=14&sl=0&dist=50&po=1&do=2&trackingid=1046138&r2s=1&_t=773166090&_r=WLM_EndText

Thank you, but this now sounds more difficult: what would be the point in having these ready-made functions if I have to do it manually? Anyway, How would I implement the last part? On Thu, Mar 23, 2023 at 1:23?AM Ebert,Timothy Aaron <tebert at ufl.edu> wrote: > > If you are open to other options: > The null hypothesis is that there is no difference. > If I have two equations

We were also able to reproduce the issue on Windows Server 2012. If there's anything we can do to help please let me know; Elliot Waingold (CC'd here) can provide access to the VM we used for testing if that's of any help. # David Smith -- David M Smith <davidsmi at microsoft.com> R Community Lead, Revolution Analytics (a Microsoft company)? Tel: +1 (312) 9205766 (Chicago IL,

> On Tue, Jun 10, 2008 at 4:50 PM, Robert Grapes > <robert_grapes at hotmail.com> wrote: > > llvm[3]: Compiling SelectionDAGISel.cpp for Release build > > > > /var/folders/Xq/XqzGACxLHWq4Af0cQbEMdE+++TI/-Tmp-//cc6xGQcn.s:unknown:immediate > > value (-288) too large > > > > Any help would be really appreciated, > > That looks like an internal

Hi, I am running dovecot 1.0.rc7 on a Suse Linux server. The server has approx 200+ mailboxes. Last week the filesystem (/dev/mapper/datavg/dat2lv) ran out of space - causing it to do into read-only mode. When I realised this I allocated some more space and re-booted the machine... Strangely it seems that dovecot is still having problems... It's like dovecot doesn't realise that

Hi everybody, I have strange problem: I'm calling from inside (either X-Lite using SIP channel or a ISDN telephone using Zap Channel) using sipgate to a number in public network. When I'm hanging up before the other person picked up the phone, the line is not closed correctly. The phone keeps on ringing until timeout (of Sipgate I assume) and it even costs my money, if the other person

Hi there, We are currently in the process of migrating our online radio stations to Azuracast, everything is working well except when we attempt to post On Air and Listener stats to your directory, they don't show up. Additionally, the listing can't be found in searches most of the time, but occasionally will come back for a few minutes and then disappear. I've setup a test station at

Hello, I have three numerical variables and I would like to test if their correlation is significantly different. I have seen that there is a package that "Test the difference between two (paired or unpaired) correlations". [https://www.personality-project.org/r/html/paired.r.html] However, there is the need to convert the correlations to "z scores using the Fisher r-z

Hi, can you check the log for the actual messages where it adds the stream to the directory? It should contain information if listing fails or succeeds and the server sends back the reason. On 16 Jun 2020, at 0:55, Jeremy Nixon wrote: > Hi there, > > We are currently in the process of migrating our online radio stations > to Azuracast, everything is working well except when we

Hi David, ----- Original Message ----- > From: "David Smith" <davidsmi at microsoft.com> > To: "Dan Tenenbaum" <dtenenba at fredhutch.org>, "Uwe Ligges" <ligges at statistik.tu-dortmund.de>, "Elliot Waingold" > <Elliot.Waingold at microsoft.com> > Cc: "R-devel at r-project.org" <r-devel at r-project.org>

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faced this exact same problem a few times on more than one servers and it was 1) dialplan issue which was not hanging up the zap channels correctly 2) using more than 8 spans on a server. Asterisk can't handle more than 96 zap channels on T1s. FXO/FXS combinations can vary the number of spans but if you know what I mean by spans, in production don't use more than 6 spans. On 2010-03-17

----- Original Message ----- > From: "Uwe Ligges" <ligges at statistik.tu-dortmund.de> > To: "Dan Tenenbaum" <dtenenba at fredhutch.org>, "R-devel at r-project.org" <r-devel at r-project.org> > Sent: Saturday, August 8, 2015 3:57:34 PM > Subject: Re: [Rd] download.file() on ftp URL fails in windows with default download method > >

Does anyone have any pointers on how other people have implemented tcp window adjustment to do bandwidth shaping? Granted the basic idea is to set the window size to be RTT * bandwidth, but a quick squiz at google turns up mostly papers on how to implement this at the sender end with a view to some new magic TCP implementation. I''m really interested in notes on how to implement at