Displaying 20 results from an estimated 11000 matches similar to: "slope estimations of teeth like data"
2004 Jun 15
1
R: slope estimations of teeth like data
On 15 Jun 2004 at 13:52, Vito Muggeo wrote:
> Dear Petr,
> Probably I don't understand exactly what you are looking for.
>
> However your "plot(x,c(y,z))" suggests a broken-line model for the
> response "c(y,x)" versus the variables x. Therefore you could estimate
> a segmented model to obtain (different) slope (and breakpoint)
> estimates. See
2012 May 08
2
How to deal with a dataframe within a dataframe?
Hello all,
I am doing an aggregation where the aggregating function returns not a
single numeric value but a vector of two elements using return(c(val1,
val2)). I don't know how to access the individual columns of that
vector in the resulting dataframe though. How is this done correctly?
Thanks, robert
> agg <- aggregate(formula=df$value ~ df$quarter + df$tool,
+ FUN=cp.cpk,
2009 Mar 30
3
Calculating First Occurance by a factor
I'm having difficulty finding a solution to my problem that without using a
for loop. For the amount of data I (will) have, the for loop will probably
be too slow. I tried searching around before posting and couldn't find
anything, hopefully it's not embarrassingly easy.
Consider the data.frame, Data, below
Data
Sub Tr IA FixInx FixTime
p1 t1 1 1 200
p1 t1 2
2006 Sep 21
1
transforming factor back to numbers
Hi
I generate a new dataframe by doing:
npl.agg <- aggregate(npl$DensPlants, list(year=npl$year, sim=npl$sim),
mean, na.rm=TRUE )
Now I want to plot it by using
coplot(npl.agg$x ~ npl.agg$year | npl.agg$sim, type="l")
but, as npl.agg$year is seen as a factor, the order of the points on the
x-axis (time axis) does not follow the numerical sorting 1...100, but
rather the text
2011 Oct 06
2
[LLVMdev] A potential bug
Hi all,
There might be a bug in DeadStoreElimination.cpp. This pass eliminates
stores backwards aggressively in an end BB. It does not check dependencies
on stores in an end BB though. For example, in this code snippet:
...
1. %sum.safe_r47.pre-phi = phi i64* [ %sum.safe_r47.pre,
%entry.for.end_crit_edge ], [ %sum.safe_r42, %for.body ]
2. %call9 = call i32 @gettimeofday(%struct.timeval* %end,
2008 Aug 12
2
perl expression question
I have a string such as
fileName<-"Agg.20.20.20-all-01".
All I want to do is pull the "20.20.20" and the "all" as strings.
Obviously, they aren't always those values.
The "20.20.20" can be "30.30.30" but it's always after the . which is
next to the second g in Agg and it's always the same length. The all
might not always be
2011 Oct 06
2
[LLVMdev] A potential bug
On Thu, Oct 6, 2011 at 2:20 PM, Eli Friedman <eli.friedman at gmail.com> wrote:
> On Thu, Oct 6, 2011 at 2:12 PM, Zeng Bin <ezengbin at gmail.com> wrote:
>> Hi all,
>>
>> There might be a bug in DeadStoreElimination.cpp. This pass eliminates
>> stores backwards aggressively in an end BB. It does not check dependencies
>> on stores in an end BB though.
2011 Oct 06
0
[LLVMdev] A potential bug
On Thu, Oct 6, 2011 at 2:12 PM, Zeng Bin <ezengbin at gmail.com> wrote:
> Hi all,
>
> There might be a bug in DeadStoreElimination.cpp. This pass eliminates
> stores backwards aggressively in an end BB. It does not check dependencies
> on stores in an end BB though. For example, in this code snippet:
> ...
> 1. %sum.safe_r47.pre-phi = phi i64* [ %sum.safe_r47.pre,
2011 Oct 06
0
[LLVMdev] A potential bug
It does not do anything. It is an abstract function which transforms a
pointer and returns another pointer of the same type. It does not visit
memory or capture the pointer parameter.
On Thu, Oct 6, 2011 at 2:22 PM, Eli Friedman <eli.friedman at gmail.com> wrote:
> On Thu, Oct 6, 2011 at 2:20 PM, Eli Friedman <eli.friedman at gmail.com>
> wrote:
> > On Thu, Oct 6, 2011 at
2007 Jul 13
2
Suggestion to extend aggregate() to return multiple and/or named values
Hi all,
This is my first post to the developers list. As I understand it,
aggregate() currently repeats a function across cells in a dataframe
but is only able to handle functions with single value returns.
Aggregate() also lacks the ability to retain the names given to the
returned value. I've created an agg() function (pasted below) that is
apparently backwards compatible (i.e.
2007 Aug 08
2
Relocating Axis Label/Title --2
Apologies for the previous mail (I sent it off too early by mistake).
This is the correct example:
rm(list=ls())
D_mean<-seq(-5,5,length=100)
y<-exp(-D_mean^2/5)
pdf("my.pdf")
plot(D_mean,y,type="l",yaxt="n",lty=2,lwd=2,col="black",
ylab = list(expression(paste(dN/dlogD[agg]," ["*cm^-3*"]"))),
xlab = expression(paste(D[agg],"
2011 Oct 06
1
[LLVMdev] A potential bug
If int_guard_load returns a pointer based on the passed-in pointer, it
captures it (at least according to the definition of "capture" which
NoCapture uses).
-Eli
On Thu, Oct 6, 2011 at 2:26 PM, Zeng Bin <ezengbin at gmail.com> wrote:
> It does not do anything. It is an abstract function which transforms a
> pointer and returns another pointer of the same type. It does not
2013 Nov 07
1
problem with interaction in lmer even after creating an "interaction variable"
Dear all,
I have a problem with interactions in lmer. I have 2 factors (garden and
gebiet) which interact, plus one other variable (home), dataframe arr. When
I put:
/
lmer (biomass ~ home + garden:gebiet + ( 1|Block), data = arr)/
it writes:
/Error in lme4::lFormula(formula = biomass ~ home + garden:gebiet + (1 | :
rank of X = 28 < ncol(X) = 30/
In the lmer help I found out that if not
2007 Nov 06
1
[LLVMdev] Passing and returning aggregates (who is responsible for the ABI?)
On 6 nov. 07, at 06:17, Chris Lattner wrote:
>> But then, why refuse aggregates as input or output of a call? What is
>> the rationale?
>
> Because LLVM has no notion of aggregates as "values" that can be
> passed around as atomic units. This is a very important design point,
> and has many useful values.
I see. You explained one of them in a message on the XL
2008 Jul 23
0
[LLVMdev] GEP::getIndexValid() with other iterators
Hi Chris,
> What flavor of iterators do you want to pass in? vector or
> smallvector? If so, a pointer to the first element + extents is fine.
I was passing a std::vector in. And you are quite right, first element + size
works like a charm.
Since I am using a vector of uint64_t's instead of Value*, I did need to add
an extra version of getIndexedType(), taking a uint64_t* instead
2012 Jul 11
2
[LLVMdev] [NVPTX] llc -march=nvptx64 -mcpu=sm_20 generates invalid zero align for device function params
Hello,
FYI, this is a bug http://llvm.org/bugs/show_bug.cgi?id=13324
When compiling the following code for sm_20, func params are by some reason
given with .align 0, which is invalid. Problem does not occur if compiled
for sm_10.
> cat test.ll
; ModuleID = '__kernelgen_main_module'
target datalayout = "e-p:64:64-i64:64:64-f64:64:64-n1:8:16:32:64"
target triple =
2001 Apr 03
2
Parse error in xtabs
Greetings-
Using R 1.2.2 under linux, I get the following:
> l.agg<-xtabs(cbind(r.logic.interests, r.logic.morality,
+ r.logic.enlightened, r.logic.capacity,
r.logic.mediate)
+ ~ grouptype,
+ data=gt)
Error in parse(file, n, text, prompt) : parse error
I know the data are structured fine, as I can use all the elements in
individual xtabs()
2010 Dec 09
4
Sequence generation in a table
Dear R helpers
I have following input
f = c(257, 520, 110). I need to generate a decreasing sequence (decreasing by 100) which will give me an input (in a tabular form) like
257, 157, 57
520, 420, 320, 220, 120, 20
110, 10
I tried the following R code
f = c(257, 520, 110)
yy = matrix(data = NA, nrow = 3, ncol = 6)
for (i in 1:3)
{
value = NULL
for (j in 1 : 6)
{
2008 Jul 23
0
[LLVMdev] Structs as first class values.
On Jul 23, 2008, at 9:05 AM, David Greene wrote:
>> In the case of X86-64, llvm-gcc does use aggregate return (for the
>> interesting cases which return things in registers) and it does do
>> the
>
> I don't follow. By "aggregate return" do you mean "structs as first
> class
> values?" That is, llvm-gcc generates a return of a struct by
2007 Dec 16
2
question about the aggregate function with respect to order of levels of grouping elements
Hi,
I am using aggregate() to add up groups of data according to year and month.
It seems that the function aggregate() automatically sorts the levels of
factors of the grouping elements, even if the order of the levels of factors
is supplied. I am wondering if this is a bug, or if I missed something
important. Below is an example that shows what I mean. Does anyone know if
this is just the way