search for: isordered

Dear list, As can be seen below, adding a NA to the y values in a call to isoreg results in a segfault. ir4 <- isoreg(1:10, y4 <- c(5, 9, 1:2, 5:8, NA, 8)) Adding missing values to the x values, on the contrary, gives an error, but maybe the error message could be tailored to this particular situation. y <- c(5, 9, 1:2, 5:8, 3, 8) x <- c(1:9, NA) isoreg(x, y) ## error message:

Greetings all, I am picking up the work that was started in https://reviews.llvm.org/D27133 — adding support for an element-atomic memcpy/memset/memmove to LLVM. I would appreciate suggestions/thoughts/advice/comments on how to best proceed with this work in a way that will be acceptable to the LLVM group. I apologize in advance; this is going to be a long one... **Background** Loads/stores

Dear R-devel, I am trying to alter rpart so that it makes additional calculations when growing the tree. In the "rpart.s" there is a call to the C routine: rp <- .C("s_to_rp2", as.integer(nobs), as.integer(nsplit), as.integer(nodes), as.integer(ncat),

Hi, I am reading the source code of rpart. I have problems understand the following code and would appreciate for any helps. In rpart.s, there is a line: rpfit &lt;- .C(C_s_to_rp, &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; n = as.integer(nobs), &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; nvarx

...means it’s more likely that the person will realize >> that they have to think about it (i.e. it raises the profile of unordered >> memory intrinsics). > > I like the second point, but (unfortunately) I suspect in practice > you'll see new code do: > > if (MCI->isOrdered()) > return false; // be conservative > Yes, that would be an unfortunate reality, but one can hope. :-) >> Cons: >> * Breaks backward compatibility of the IR — is there a mechanism for >> migrating old IR into a new IR version when loading the IR into LLVM? > &...

Dear r-devel, I am mutating rpart to do calculations on trees. I am trying to extract information from the tree. However, I got a seg. fault. This is the offending line in "rpmatrix.c": deltaI[0][0] = spl->improve; (Commenting it out cures the seg fault) I would like some advice on how to debug this. I have allocated memory with calloc and deltaI[0][0] should be

Hello, If I want to see how, say, apply function is written, how would I be able to do that? Just typing "apply" at the prompt does not work. Thank you for help! Sergey