[R] R Memory Issue

[PIKAL Petr]

Hi

I have this enhanced ls function, which evaluates size of objects generated by myself or by other functions sitting in my environment.

ls.objects <- function (pos = 1, pattern, order.by)
{
    napply <- function(names, fn) sapply(names, function(x) fn(get(x,
        pos = pos)))
    names <- ls(pos = pos, pattern = pattern)
    obj.class <- napply(names, function(x) as.character(class(x))[1])
    obj.mode <- napply(names, mode)
    obj.type <- ifelse(is.na(obj.class), obj.mode, obj.class)
    obj.size <- napply(names, object.size)
    obj.dim <- t(napply(names, function(x) as.numeric(dim(x))[1:2]))
    vec <- is.na(obj.dim)[, 1] & (obj.type != "function")
    obj.dim[vec, 1] <- napply(names, length)[vec]
    out <- data.frame(obj.type, obj.size, obj.dim)
    names(out) <- c("Type", "Size", "Rows", "Columns")
    if (!missing(order.by))
        out <- out[order(out[[order.by]]), ]
    out
}

Lengthy R closing can be due to such big objects e.g. generated by strucchange functions.

However it may have another resons. Without more information from your side it would be difficult to bring definite answer.

Petr


> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of SHIVI
> BHATIA
> Sent: Wednesday, February 17, 2016 10:16 AM
> To: r-help at r-project.org
> Subject: [R] R Memory Issue
>
> Dear Team,
>
>
>
> Every now and then I face some weird issues with R. For instance it
> would not read my csv file or any other read.table command and once I
> would close the session and reopen again it works fine.
>
>
>
> It have tried using rm(list=ls()) & gc() to free some memory and
> restart R <Cntrl+Shft+F10>
>
>
>
> Also today while closing the R session it took more than 10 minutes. I
> am not sure as to what is leading to this. Kindly throw some light on
> this. Not
> sure if I have provided enough information.
>
>
>
> Thanks, Shivi
>
> Mb: 9891002021
>
>


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