search for: lff

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2016 Feb 29
1
[patch] Support many columns in model.matrix
...minates the recursive function > > calls. > > Thank you, Karl. > I've committed this (very slightly modified) to R-devel, > > (also after looking for a an example that runs on a non-huge > computer and shows the difference) : > > nF <- 11 ; set.seed(1) > lff <- setNames(replicate(nF, as.factor(rpois(128, 1/4)), simplify=FALSE), letters[1:nF]) > str(dd <- as.data.frame(lff)); prod(sapply(dd, nlevels)) > ## 'data.frame': 128 obs. of 11 variables: > ## $ a: Factor w/ 3 levels "0","1","2": 1 1 1...
2017 Nov 02
0
low end file server with h/w RAID - recommendations
>Most servers can fit only 2.5" disks these days. I keep wondering what everyone is doing about storage. The DL20 gen9 I bought was setup LFF (3.5") The DL380 gen9 could be either SFF (2.5) or LFF. I had to buy SFF for our new server due I was told to spec / build it exact to vendor recommendation. To better? Answer this. Agreed, I'm not a fanboy of 2.5" stuff in enterprise equipment. To me a better but more costly answer...
2016 Feb 26
2
[patch] Support many columns in model.matrix
Generating a model matrix with very large numbers of columns overflows the stack and/or runs very slowly, due to the implementation of TrimRepeats(). This patch modifies it to use Rf_duplicated() to find the duplicates. This makes the running time linear in the number of columns and eliminates the recursive function calls. Thanks -------------- next part -------------- A non-text attachment was
2017 Nov 02
11
low end file server with h/w RAID - recommendations
Richard Zimmerman wrote: > hw wrote: >> Next question: you want RAID, how much storage do you need? Will 4 or 8 3.5" drives be enough (DO NOT GET crappy 2.5" drives - they're *much* more expensive than the 3.5" drives, and >smaller disk space. For the price of a 1TB 2.5", I can get at least a 4TB WD Red. > > I will second Marks comments here. Yes,
2016 Feb 29
0
[patch] Support many columns in model.matrix
...inear in the > number of columns and eliminates the recursive function > calls. Thank you, Karl. I've committed this (very slightly modified) to R-devel, (also after looking for a an example that runs on a non-huge computer and shows the difference) : nF <- 11 ; set.seed(1) lff <- setNames(replicate(nF, as.factor(rpois(128, 1/4)), simplify=FALSE), letters[1:nF]) str(dd <- as.data.frame(lff)); prod(sapply(dd, nlevels)) ## 'data.frame': 128 obs. of 11 variables: ## $ a: Factor w/ 3 levels "0","1","2": 1 1 1 2 1 2 2 1 1 1 ... ##...
2011 Jul 11
1
Samba and Active Directory 2008
I was wondering if anyone has had any luck getting samba working with a Windows 2008 domain? I've got mine working for the most part except for UID lookups. I've got identity management for unix installed on on the windows box and have several users configured with custom home directories, login shell, and UID on the Unix attributes tab. My samba server is joined to the domain, wbinfo -u
2012 Nov 22
19
ZFS Appliance as a general-purpose server question
A customer is looking to replace or augment their Sun Thumper with a ZFS appliance like 7320. However, the Thumper was used not only as a protocol storage server (home dirs, files, backups over NFS/CIFS/Rsync), but also as a general-purpose server with unpredictably-big-data programs running directly on it (such as corporate databases, Alfresco for intellectual document storage, etc.) in order to