similar to: 'merge' function: behavior w.r.t. NAs in the key column

Hi, I would like to report a small bug in one of the code examples given in the 'Writing R extensions' manual. Section 5.9.2 ("Calling .External") defines the function "showArgs" in order to demonstrate how to access in C the pair-listed arguments passed by .External. The function aims at printing echoing all passed arguments to the screen but only prints every

Dear Prof Ripley, Prof Brian Ripley wrote: > But it is not taken 'verbatim from src/main/print.c' (at least not in > that version of R), and the code is not run with USE_RINTERNALS defined > when write-barrier checking is enabled. > > The example has been updated to match the current code in 2.7.0 alpha. I just assumed that it is copied verbatim without checking because

Hi While installing RPy2, I had curious problems which, if I traced them back correctly, have their root in the way that libR.so find the R installation directory. I wonder if this might be a subtle bug that only causes problems when one has several versions of R on one system but then can be very annoying and cause very strange behaviour. It seems to me that libR.so asks the Unix shell to

Hi, is there an elegant way to use 'substitute' with '...' arguments? My first try was this: > f1 <- function(...) substitute(...) > f1( 2+7, "foo", 3+5 ) 2 + 7 As you can see, substitute acts only on the first argument. So I tried > f2 <- function(...) substitute(list(...)) > f2( 2+7, "foo", 3+5 ) list(2 + 7, "foo", 3 + 5)

Hi everyone It looks like repeated runs of fastICA produce quite significantly different mixing matrices (not only in terms of sign and row order). I'm not a specialist, so would appreciate any advice on whether this should really be the case: > res3 = > fastICA(af[,2:20],4,alg.typ="parallel",fun="logcosh",alpha=1,method="C",row.norm=TRUE) colstandard >

Dear John Fox and everyone, I have been using the effects library with glms and have found it very useful. Now I'm trying it with lms and I'm not sure if the results of the allEffects() are as expected. I've got a model that looks like this: mymodel = lm(formula = A ~ B + C + D + B:D + C:D) Residuals: Min 1Q Median 3Q Max -3.80156 -0.73486 -0.09792

HI All sorry if this question has already been asked but I couldn't find anything that answered my question I have 24 columns of data that I'm trying to plot in heatmap.2 (gregmisc) and I'm having difficulty ordering them except in numerical sequence: I have transposed my matrix so it will appear with the dendrogram I want appearing at the top of the heatmap If I use either of

Hi, I'd like to select one row in a data frame per subset which is maximal for a particular value. I'm pretty close to the solution in the sense that I can easily select the maximal values per subset using "aggregate", but I can't really figure out how to select the rows in the original data frame that are associated with these maximal values. library(stats) # this

Hello developeRs, Apologies in advance for a rather long email, but to describe the problem, I need to step through many details. I have been working on a new dispatching system (futile.paradigm on CRAN) based on functional programming concepts that is an alternative to S3 and S4 dispatching. I use a declarative syntax using guard statements to control the dispatching between function variants. I

Hi The cor function in the stats package calculates the correlation between columns of data, does anyone know if it is at all possible to calculate the correlation between rows instead ? Or is there an appropriate package or function that is more appropriate I'd like to calculate spearman & pearson correlations between rows. Many thanks Jason -- --------------------------------

I am attempting to add a calculated column to a data frame. Basically, adding a column called "newcol2" which are the stock closing prices from 1 day to the next. The one little hang up is the name of the column. There seems to be an additional data column name included in the attributes (dimnames?). So when i run HEAD(DATAFRAMENAME) i get the column name = "Open". but

I have a database table named trips which has two columns (in addition to others) which both have foreign keys to the locations table. The columns are for a start location and an end location. The problem arises in the trip model in trying to access each location. belongs_to :location, :foreign_key => ''start_location_id'' gives me access to one of the locations but how can

Hello Everyone, We have a replicated Gluster volume with three nodes, and we face a strange issue whenever we need to restart one of the nodes in this cluster. As per my understanding, if we shut down one node, the Gluster mount should smoothly connect to another remaining Gluster server and shouldn't create any issues. In our setup, when we stop Gluster on any of the nodes, we mostly get

Hi All, A twitter user, Mike fc (@coolbutuseless) mentioned today that he was surprised that repeated NAs weren't treated as a run by the rle function. Now I know why they are not. NAs represent values which could be the same or different from eachother if they were known, so from a purely conceptual standpoint there is no way to tell whether they are the same and thus constitute a run or

Hello List, I'm trying to do a paired t-test, and I'm wondering if it's consistent with equations. I have a dataset that has a response and two treatments (here's an example): ID trt order resp 17 1 0 1 0.0037513592 18 2 0 1 0.0118723051 19 4 0 1 0.0002610251 20 5 0 1 -0.0077951450 21 6 0 1 0.0022339952 22 7 0 2

Its should not be needed to drop and recreate. Try the following. Delete the created records in the "wrong" zone(s) Try to delete the "wrong" zone. ( ignore the error) Restart bind Restart samba. Pray and check again. Are the "empty zones gone and are your dns records there again? Greetz, Louis > -----Oorspronkelijk bericht----- > Van: samba

I am trying to combine two columns in a data frame into one column. Some values in either column are missing, but not in the same row for the two different columns. Additionally, when both columns in a row contain data, the data are identical. I want a new column with the identical data or the data from the column with observed data. For example: I have >data id x y

I have changed the generic to as.data.frame in R-devel by adding a '...' argument. This means that any methods which do not have a '...' argument (quite a few do) will generate a warning in R CMD check: the fix is very simple (and backwards compatible): just add a '...' argument to the method. We already had a problem with as.data.frame.table which had an extra

Hello, I have come across some unexpected behaviour of the function heatmap in the stats package. This looks like a bug to me, but I might have misunderstood something. When calling the function in symmetric mode, the ColSideColors are plotted correctly, but RowSideColors appear in reverse order. This code (modified from the example on the help page) demonstrates the problem: cU <-

Greetings all! A recent news item got me thinking that a problem stated therein could provide a teasing little exercise in R programming. http://www.bbc.co.uk/news/uk-england-cambridgeshire-17680326 Cambridge University hosts first European 'maths Olympiad' for girls The first European girls-only "mathematical Olympiad" competition is being hosted by Cambridge