search for: srows

Displaying 6 results from an estimated 6 matches for "srows".

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2005 Jul 21
3
vectorising ifelse()
Hi All, is there any chance of vectorising the two ifelse() statements in the following code: for(i in gp){ new[i,1] = ifelse(srow[i]>0, new[srow[i],zippo[i]], sample(1:100, 1, prob =Y1, rep = T)) new[i,2] = ifelse(drow[i]>0, new[drow[i]>0,zappo[i]], sample(1:100, 1, prob =Y1, rep = T)) } Where I am forced to check if the value of drow and srow are >0 for each line... in
2009 Feb 25
1
Computing sd across an array with missing values
Dear help, suppose I have this array and want to compute sd aross rows and columns. p <- array(c(1:5, rep(NA, times = 3)), dim = c(5, 5, 3)) apply(p, 1:2, sd) fails because sd requires at least 2 numbers to compute sd apply(p, 1:2, sd, na.rm = TRUE) fails for the same reason I crafted my own function that does what I want sd_fun <- function(i){ if(sum(!is.na(i))==0){ temp.sd <- NA
2012 Nov 19
0
R SNA: Creating a adjacency matrix containing all actors but only values of a subset
1 down vote favorite my problem is the following: I am using the R SNA package for social network analysis. Lets say, my starting point is an edgelist with the following characteristics. Every row contains a firm name, the ID of a project they are involved and further characteristics, let's say the projects year. Firms can be in several projects, and one project can consist of a
2007 Apr 18
2
[Bridge] bridge_list orphans in linux-2.4
Hi all, We use linux-2.4.20 in one of our products and we've found what looks to be a problem in the bridge module. (I know this is old code but we don't send our customers kernel upgrades unless we really have to!) The problem is that some of our bridges have become orphaned from the bridge module. Specifically ifconfig ourbridgename shows that the device "ourbridgename"
2010 Feb 22
9
Couldn't find Order with ID=pending_orders
I have a Controller named Orders which has a pending_orders method which is expected to fetch some records from the database. If i dont write a route for this method, I get the following error when i call this method. Couldn''t find Order with ID=pending_orders I am using rails 2.3.5, in the previous versions i use to get this I am not getting whether its new version requirement... Help
2012 Oct 27
1
Unitek ALPHA 1200 Sx USB cable
I've just acquired a Unitek ALPHA 1200 Sx UPS to replace an older serial UPS that's been working well with NUT for years. Could anyone with a Unitek tell me what the pinout on the 10P10C plug is so I can make up a cable? Thanks.