Displaying 9 results from an estimated 9 matches for "vseq".
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2018 Sep 21
3
Bias in R's random integers?
Not sure what should happen theoretically for the code in vseq.c, but
I see the same pattern with the R generators I tried (default,
Super-Duper, and L'Ecuyer) and with with bash $RANDOM using
N <- 10000
X1 <- replicate(N, as.integer(system("bash -c 'echo $RANDOM'", intern = TRUE)))
X2 <- replicate(N, as.integer(system("bas...
2018 Sep 21
0
Bias in R's random integers?
On 9/21/18 6:38 PM, Tierney, Luke wrote:
> Not sure what should happen theoretically for the code in vseq.c, but
> I see the same pattern with the R generators I tried (default,
> Super-Duper, and L'Ecuyer) and with with bash $RANDOM using
>
> N <- 10000
> X1 <- replicate(N, as.integer(system("bash -c 'echo $RANDOM'", intern = TRUE)))
> X2 <- replicate(...
2018 Sep 20
4
Bias in R's random integers?
Hello,
On Thursday, September 20, 2018 11:15:04 AM EDT Duncan Murdoch wrote:
> On 20/09/2018 6:59 AM, Ralf Stubner wrote:
> > On 9/20/18 1:43 AM, Carl Boettiger wrote:
> >> For a well-tested C algorithm, based on my reading of Lemire, the
> >> unbiased "algorithm 3" in https://arxiv.org/abs/1805.10941 is part
> >> already of the C standard library in
2010 Jul 20
3
Sequence from 2 Vectors
I would like to create a vector that is a sequence from 2 vectors. Could
anyone provide suggestion on this?
For example
> a<-c(1,2,3)
> b<-a+2
> b
[1] 3 4 5
I would like to have a vector that is a sequence which starting from a
and ending at b
c = c(1:3,2:4,3:5)
c = c(1,2,3,2,3,4,3,4,5)
Thank you
Best Regards,
Suphajak Ngamlak
Equity and Derivatives Trading
Phatra Securities
2018 Sep 21
0
Bias in R's random integers?
Hello,
Top posting. Several people have asked about the code to replicate my
results. I have cleaned up the code to remove an x/y coordinate bias for
displaying the results directly on a 640 x 480 VGA adapter. You can find the
code here:
http://people.redhat.com/sgrubb/files/vseq.c
To collect R samples:
X <- runif(10000, min = 0, max = 65535)
write.table(X, file = "~/r-rand.txt", sep = "\n", row.names = FALSE)
Then:
cat ~/r-rand.txt | ./vseq > ~/r-rand.csv
And then to create the chart:
library(ggplot2);
num.csv <- read.csv("~/random.csv...
2014 Sep 29
0
Imap: Panic: UID 13737 lost unexpectedly from INBOX
...%u lost unexpectedly from %s") at failures.c:267
ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0}
args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff0f69d8e0, reg_save_area = 0x7fff0f69d820}}
#5 0x00007f14cea4c12e in virtual_sync_external_flags (vseq=1250, real_uid=13737, bbox=<error reading variable: Unhandled dwarf expression opcode
0xfa>, bbox=<error reading variable: Unhandled dwarf expression opcode 0xfa>,
ctx=<error reading variable: Unhandled dwarf expression opcode 0xfa>, ctx=<error reading variable: Unhandled d...
2014 Apr 24
0
Assert crash with latest HG ddf374a36057
...bbox = 0xb9318058
flags = <optimized out>
vrec = 0xb93a42e8
data = 0xb93a42e8
keywords = 0xb939b958
modify_type = <optimized out>
kw_names = {0x0, 0xb9308768 "8\211\060\271 \211\060\271\070\003\060\271\060\373/\271"}
vseq = 505
seq1 = 505
virtual_ext_id = 2
seq2 = 505
#10 virtual_sync_index_changes (ctx=0xb939d988) at virtual-sync.c:419
keywords = <optimized out>
sync_rec = {uid1 = 274359, uid2 = 274359, type = MAIL_INDEX_SYNC_TYPE_FLAGS, add_flags = 8 '\b', remo...
2009 Jun 06
2
1.2rc5 Panic: file virtual-sync.c
...s: line %d (%s): assertion failed: (%s)") at failures.c:207
No locals.
#6 0xb7ec36b4 in virtual_sync_mailbox_box_remove (ctx=0x9632340, bbox=0x9374248, removed_uids=0x937427c) at virtual-sync.c:516
i = 3215393848
src = 0
dest = 135275874
uid = 154526136
vseq = 28
__PRETTY_FUNCTION__ = "virtual_sync_mailbox_box_remove"
#7 0xb7ec4c7b in virtual_sync_backend_boxes (ctx=0x9632340) at virtual-sync.c:850
_data_stack_cur_id = 3
i = 10
ret = 0
#8 0xb7ec5dc4 in virtual_storage_sync_init (box=0x9373ba8, flags=MAILBOX_S...
2008 Oct 20
5
SIGBART/SIGSEGV while SELECTing virtual folder
Hello!
I just installed Dovecot's latest nightly build (20081020) and tried the
virtual folder features. I started with a really simple "all" folder:
| # virtual/all
| *
| all
But selecting this folder causes dovecot to panic (in most cases).
While trying to debug this, I got slightly different results and I am
not really sure yet if this is just non-deterministic, depends on