Displaying 20 results from an estimated 3065 matches for "thresholds".
Did you mean:
threshold
2009 Jun 16
2
Statistically detecting thresholds...
Rers:
I have some ecological data (stream velocity vs. % cover of submerged
weeds) that shows strong evidence of a thresholding step-function, e.g.
below some velocity, % cover ranges from 0% to 100% (with no apparent
relationship to velocity within this range of velocities), but above a
certain "threshold" velocity, the % cover does not appear to exceed,
say, 10%. There are good
2004 Jul 31
0
Trunk doesn't work Adit 600/T100P
Hi !
I am connecting to Adit 600 thru a T100P card
I have configured 1-16 FXS channels and 17-24 FXO.
Everything looks fine on Asterisk side I get a tone
on all FXS channels, but when I try to dialout thru
one of the FXO channels 17-24 it doesn't connect to
the POTS line and echoes back my voice.
I use fxsls and fxols for the T1 channels and ls on
Adit side. Whats wrong here ?
here is my Adit
2013 Sep 13
2
how to get values within a threshold
input:
> values
[1] 0.854400 1.648465 1.829830 1.874704 7.670915 7.673585 7.722619
> thresholds
[1] 1 3 5 7 9
expected output:
[1] 1 4 4 4 7
That is, need a vector of indexes of the maximum value below the threshold.
e.g.
First element is "1", because value[1] is the largest below threshold "1".
Second element is "4", because value[4] is the largest belo...
2005 Feb 25
2
outlier threshold
For the analysis of financial data wih a large variance, what is the best way to select an outlier threshold?
Listed below, is there a best method to select an outlier threshold and how does R calculate it?
In R, how do you find the outlier threshold through an interquartile range?
In R, how do you find the outlier threshold using the hist command?
In R, how do you find the outlier threshold
2005 Jun 07
5
Temperature monitoring tools
Are there any easy to use snmp(mainly temperature monitoring)
tools around for Centos -4? This is on a Dell sc420 server.
--
Computer House Calls, Networks, Security, Web Design:
http://www.emmanuelcomputerconsulting.com
What businesses are in Brunswick, Maryland? Check Brunswick First!
http://www.checkbrunswickfirst.com
My "Foundation" verse:
Isa 54:17 No weapon that is formed
2010 Jun 21
5
Replacing elements of a list over a certain threshold
Dear List,
I have a list of length ~1000 filled with numerics. I need to replace
the elements of this list that are above a certain numerical threshold
with the value of the threshold.
e.g
example=list(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
threshold=5
<magic code goes here>
example=(1, 2, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1).
I have written a crude
2011 Jul 11
1
Named numeric vectors with the same value but different names return different results when used as thresholds for calculating true positives
Dear List,
I have encountered an odd problem that I cannot understand. It stems
from the calculation of true and false positives based on two input
vectors x and y based on different thresholds of x, extracted using
the quantile function. I am in certain cases getting different values
of true positives for the same threshold value when the threshold was
found under different quantiles (e.g. the threshold value Z was found
with quantile(x, probs = 0.045) and quantile(x, probs = 0.05). The...
2005 Apr 09
3
short read while checking ext3 journal
My UPS failed and my server took an 'unscheduled outage' a few weeks ago.
The only casualty appears to be a volume I used for backup. I usually
maintain data on multiple hard disks, but in this case I errantly had some
data (of marginal value) on this file system.
At this point, the data is not worth enough for me to send the drive out
for data recovery, but it's worth enough to
2009 Sep 08
2
Fitting a linear model with a break point
Hello,
I would like to test some data to see whether it has the shape of a step
function (i.e. y1 up until x_th and then y2 where x_th is the
threshold). The threshold x_th is unknown and the x values can only
take discrete values (0,1,2,3,4).
An example would be:
data<- data.frame(x=1:20,y=c(rnorm(10),rnorm(10,10)))
I was thinking along the lines of fitting some sort of piiecewise linear
2017 Jan 31
2
(RFC) Adjusting default loop fully unroll threshold
...makes sense to
>> me to differentiate the threshold for full unroll and the dynamic/partial
>> case.
>>
>
> There is one issue that makes these not orthogonal.
>
> If even *static* profile hints will reduce some of the code size increase
> caused by higher unrolling thresholds for non-cold code, we should factor
> that into the tradeoff in picking where the threshold goes.
>
> However, getting PGO into the full unroller is currently challenging
> outside of the new pass manager. We already have some unfortunate hacks
> around this in LoopUnswitch that are...
2017 Jan 31
0
(RFC) Adjusting default loop fully unroll threshold
...is (to some extent) orthogonal, and it makes sense to me
> to differentiate the threshold for full unroll and the dynamic/partial case.
>
There is one issue that makes these not orthogonal.
If even *static* profile hints will reduce some of the code size increase
caused by higher unrolling thresholds for non-cold code, we should factor
that into the tradeoff in picking where the threshold goes.
However, getting PGO into the full unroller is currently challenging
outside of the new pass manager. We already have some unfortunate hacks
around this in LoopUnswitch that are making the port of it to...
2008 May 14
1
Time differences (as.difftime?) issue
...hours
> threshold[[1]] <- 47
> threshold
Time difference of 47 hours
In that way I can use my original statement:
> my.dt - my.dt[1] < threshold
[1] TRUE TRUE TRUE TRUE TRUE
In summary, my question is: Is there a more elegant way than my hack from
above to specify time difference thresholds of for example 47 hours, or of
246 seconds, or of 33 days and 5 hours? This could be using as.difftime or
using other means.
Thanks in advance,
Lukas
P.S.
> sessionInfo()
R version 2.4.1 (2006-12-18)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
State...
2012 Apr 03
1
[LLVMdev] Possible typo in LoopUnrollPass.cpp
hi,
In "LoopUnrollPass.cpp", when trying to reduce unroll count to meet
the unroll threshold requirement in line 200 and line 206, variable
"CurrentThreshold" is used in the computation, instead of the variable
"Threshold", which is defined by:
// Determine the current unrolling threshold. While this is normally set
// from UnrollThreshold, it is overridden to
2012 Feb 09
1
Apply pmax to dataframe with different args based on dataframe factor
# I have a dataframe in the following form:
track <- c(rep('A', 3), rep('B', 4), rep('C', 4))
value <- c(0.15, 0.25, 0.35, 0.05, 0.99, 0.32, 0.13, 0.80, 0.75, 0.60, 0.44)
df <- data.frame(track=factor(track), value=value)
#> print(df)
#track value
#1 A 0.15
#2 A 0.25
#3 A 0.35
#4 B 0.05
#5 B 0.99
#6 B 0.32
#7 B 0.13
2017 Feb 02
2
(RFC) Adjusting default loop fully unroll threshold
...thogonal, and it makes sense to me
> to differentiate the threshold for full unroll and the dynamic/partial case.
>
>
> There is one issue that makes these not orthogonal.
>
> If even *static* profile hints will reduce some of the code size increase
> caused by higher unrolling thresholds for non-cold code, we should factor
> that into the tradeoff in picking where the threshold goes.
>
> However, getting PGO into the full unroller is currently challenging
> outside of the new pass manager. We already have some unfortunate hacks
> around this in LoopUnswitch that are...
2017 Feb 02
2
(RFC) Adjusting default loop fully unroll threshold
...me extent) orthogonal, and it makes sense to me to differentiate the threshold for full unroll and the dynamic/partial case.
>
> There is one issue that makes these not orthogonal.
>
> If even *static* profile hints will reduce some of the code size increase caused by higher unrolling thresholds for non-cold code, we should factor that into the tradeoff in picking where the threshold goes.
>
> However, getting PGO into the full unroller is currently challenging outside of the new pass manager. We already have some unfortunate hacks around this in LoopUnswitch that are making the por...
2011 Feb 10
1
Optimal choice of the threshold u in Peak Over Threshold (POT) Approach
Dear All,
Could?someone please suggest me the way to calculate the optimal threshold in
POT method via?any available ?packages in R?
Thanks,
Fir
2017 Jan 31
3
(RFC) Adjusting default loop fully unroll threshold
> On Jan 30, 2017, at 4:56 PM, Dehao Chen <dehao at google.com> wrote:
>
>
>
> On Mon, Jan 30, 2017 at 3:56 PM, Chandler Carruth <chandlerc at google.com <mailto:chandlerc at google.com>> wrote:
> On Mon, Jan 30, 2017 at 3:51 PM Mehdi Amini via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>> On Jan 30,
2009 Aug 07
1
Proper / Improper scoring Rules
Hi All,
I am working on some ordinal logistic regresssions using LRM in the
Design package. My response variable has three categories (1,2,3) and
after using the creating my model and using a call to predict some
values and I wanted to use a simple .5 cut-off to classify my
probabilities into the categories.
I had two questions:
a) first, I am having trouble directly accessing the
2005 Feb 25
4
Temporal Analysis of variable x; How to select the outlier threshold in R?
For a financial data set with large variance, I'm trying to find the
outlier threshold of one variable "x" over a two year period. I
qqplot(x2001, x2002) and found a normal distribution. The latter part of
the normal distribution did not look linear though. Is there a suitable
method in R to find the outlier threshold of this variable from 2001 and
2002 in R?