search for: nber

...There are a number of web pages showing how to install FreeBSD from an ISO image over the net - this is not what we want to do. We are currently using the built-in facilities of FreeBSD to boot over the net and wish to continue without a major upheaval. Our setup is described at: http://www.nber.org/sys-admin/FreeBSD-diskless.html Daniel Feenberg NBER

...er my method is pretty inefficient (ok, I admit it: I use the sum() function and test whether the result is NA)---but now I have some bigger data sets. Is there a recommended method of doing NA elimination most efficiently? sincerely, /iaw --- ivo welch professor of finance and economics brown / nber / yale

...e this ambiguity, I would guess that ifelse() would be a preferred function. I wanted to look up the internal R documentation for if via "?if", but this does not work. making the latter work would be a good idea. regards, /iaw --- ivo welch professor of finance and economics brown / nber / yale

...::Xapian in perl version 1.2, but now with xapian-bindings-1.4.4 it does not seem to. How are you supposed to tell when you have reached the end of a postlist? The above code now appears to segfault at get_docid, presumably because we went over the end of the list. Thanks, - Alex Aminoff NBER

...it happens that there is an academic controversy and one paper is a response or rebuttal to another paper. The name of the author of the first paper may appear many times in the second paper. So in light of this, how should we set our weight on the author field? Here is an example: http://www.nber.org/papers/w11215  in which the term "Hoxby" appears 315 times, referring to several previous papers by Hoxby http://www.nber.org/papers/w11216  in which the term "Rothstein" is used 47 times So if a user searches for "Hoxby", I would prefer that the comment on...

...es seem to successfully exclude the directories given by many of its entries, including these two lines: Documents/My[ ]Videos/ Nethood/ but the apparently similar (to me) directories Documents/My[ ]Music/ Printhood/ just generate the error rsync: opendir "/cygwin/c/users/feenberg/Documents/My Videos" failed: Permision denied (13) rsync: opendir "/cygwin/c/users/feenberg/Documents/Printhood" failed: Permision denied (13) As it happens, those directories don't really exist - at least the dir command won't list them and I certainly didn't do anyth...

...tly upgraded our rsync client from Freebsd 10.2 to 11.2 which upgraded our rsync from 3.0.6 protocol version 30 to 3.1.3 protocol version 31. The server remains Freebsd 11.1 with rsync 3.1.2 protocol version 31. Now we get numerous messages like this: rsync: readlink_stat("/disk/homedirs/nber/bstevens/public_html/old/test/press reaction/Foreign Language/Los_empleados_no_se_casan,_s\#363lo_se_divorcian.PDF") failed: Invalid argument (22) Apparently the filename includes a non-ASCII character , such as windows might do (via samba). My understanding is that Unix filenames can co...

Hi all, I am looking for study resources for (financial) time series? Hopefully I could find video lectures then it will reduce the learning curve. Thanks a lot! [[alternative HTML version deleted]]

Hi, I can't get the colClasses option to work in the readHTMLTable function of the XML package. Here's a code fragment: require("XML") doc <- "http://www.nber.org/cycles/cyclesmain.html" table <- getNodeSet(htmlParse(doc),"//table") [[2]] # The main table is the second one because it's embedded in the page table. xt <- readHTMLTable( table, header = c("peak","trough&...

...t($txt,$weight); If I wanted to allow the user the option of searching either in recency-weighted mode or not, I could index each document into 2 different databases, one with and one without. This avoids having to mess with subclassing PostingSource and C++ and all that. - Alex Aminoff NBER On 05/03/2016 08:15 AM, James Aylett wrote: > On Tue, May 03, 2016 at 07:56:19AM -0400, Alex Aminoff wrote: > >> Perhaps I am not understanding the basic concept, but I was figuring >> we would just write a subclass of PostingSource in C++ that does >> what we want, and no...

...ption code 208 will be adopted for this purpose and immediately deprecated." It also states "The magic option MAY NOT be implemented, as it has been deprecated." This leaves me quite confused. Is there a way to specify the pxelinux configuration file in the dhcpd.conf? Daniel Feenberg feenberg at nber.org

...ecial about HPs installation of XP. This is a hard problem to research on the mailing list, as two letter search terms don't seem to be accepted at marc.theaimsgroup.com. Is there another search engine for the samba mailing list that would accept "hp xp" as a valid search? Daniel Feenberg feenberg at nber.org

>On Mon, Sep 27, 2010 at 16:27, Gene Cumm <gene.cumm at gmail.com> wrote: >> On Sun, Sep 26, 2010 at 11:50, Daniel Feenberg <feenberg at nber.org> wrote: >>> We have been network booting FreeBSD for some time with pxeboot. But now we >>> would like to have menu of OSs to boot and got the idea somewhere that >>> gpxelinux could do that for us. We copied gpxelinux.0 from the syslinux-4.0...

...might bump that > one for 1.4.0, but it'll be a high priority to address in early 1.4.x. > > So it really depends what timescale you're looking at for getting this > implemented. We are not in a rush. The nominal deadline is to have a new search engine up and in production by NBER's centennial in 2020. - Alex

...y which I sort the results. I may be able to stumble around and figure this out, but I wonder if any current xapian users have done something like this and how did it work out? We are a perl shop, but I guess I will need to figure out some C++ in order to do this? Thanks, - Alex Aminoff NBER

...to try it out for himself, I could arrange for machine access, or provide other relevant information. if anyone has compiled R 1.9.1 under amd64 with gcc 3.3.3 and found it to be stable, please let me know, too.) sincerely, /ivo welch --- ivo welch professor of finance and economics brown / nber / yale

...to try it out for himself, I could arrange for machine access, or provide other relevant information. if anyone has compiled R 1.9.1 under amd64 with gcc 3.3.3 and found it to be stable, please let me know, too.) sincerely, /ivo welch --- ivo welch professor of finance and economics brown / nber / yale

...done absolutely amazing things for the community, both building the program and in helping support it on this forum. I wish some of the corporations or universities that are using SAS would fund the R group a little, too. regards, /ivo --- ivo welch professor of finance and economics brown / nber / yale

...uot;wins support=yes" on one of the machines, but it has no effect. We have 1) no domain controller 2) one subnet 3) no dynamic dns 4) haven't configured clients for wins. One clue we can't figure out is the response to nmblookup. Here is the result for the browseable server: nber18# nmblookup -M first-group querying first-group on xx.yy.3.255 xx.yy.3.75 first-group<1d> xx.yy.3.75 is a Windows 2003 Server box, which is reasonable, but the "querying first-group" line doesn't describe our network, which is a /23 starting at xx.yy.2.0 and therefor...

I am writing an indexer that will crawl our web site. Following the recommendation here: https://trac.xapian.org/wiki/FAQ/UniqueIds I'm using the URL as the unique ID for each document. I see how to get a document from the xapian database if I know its URL, but what I need is also to be able to find out the URL from the document. Does this mean I need to store the URL in a value in