search for: aggelis

Displaying 20 results from an estimated 124 matches for "aggelis".

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
2008 Jul 16
0
[LLVMdev] GEP::getIndexValid() with other iterators
Hi all, once more with the patch inline for easy review. I did not include the argpromotion pass here, since it's not the main topic of this post. Gr. Matthijs Index: lib/VMCore/Instructions.cpp =================================================================== --- lib/VMCore/Instructions.cpp (revision 53672) +++ lib/VMCore/Instructions.cpp (working copy) @@ -1068,41 +1068,6 @@
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
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,
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.
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],"
2008 Jul 16
3
[LLVMdev] GEP::getIndexValid() with other iterators
Hi all, currently, GetElementPtrInst has a method getIndexedType, which has a templated variant. You pass in a begin and an end iterator, and it will find the indexed type for those. However, both iterators must iterate over Value*. For some argpromotion code, I would like to pass in iterators that iterate over unsigneds instead of Value*. I currently solve this by transforming my
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,
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.
2001 Oct 30
2
creating chron object aggregates (e.g. sums by day)
What is the recommended/optimal way to perform aggregates on data frames with chron objects? Here is an example: >raw.data 1 07/09/01 4000 2 07/09/01 2000 3 07/11/01 1000 4 07/13/01 800 5 07/13/01 700 6 07/16/01 600 7 07/17/01 500 I'm trying to construct a function that would first aggregate the data (second column) by day (grouping by the first column) according to a
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
2010 Mar 04
0
ifthen() question -- whoops--ifelse()
OK, I got it figured out. I was not keying into a length greater than 1, so: # I added this object and placed it into the iftelse statement: lid <- sum(match(id, st[i], nomatch = 0)) out$var.g[i]<-ifelse(lid ==1, meta$var.g[id==st[i]], aggs(g=g[id==st[i]], n.1= n.1[id==st[i]], n.2 = n.2[id==st[i]], cor)[2]) #full
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
2010 Mar 04
1
ifthen() question
Hi All, I am using a specialized aggregation function to reduce a dataset with multiple rows per id down to 1 row per id. My function work perfect when there are >1 id but alters the 'var.g' in undesirable ways when this condition is not met, Therefore, I have been trying ifthen() statements to keep the original value when length of unique id == 1 but I cannot get it to work. e.g.:
2012 Jan 19
8
sumarizar
*Hola!!! resulta que tengo unos datos de divisas ordenados por fechas (días) los que he convertido a formato tipo YYYY-MM-DD donde DD siempre es 01:* * * * EUR.resto$date<-as.Date(EUR.resto$date) EUR.resto$mo <- substr(EUR.resto$date,6,7) EUR.resto$yr <- substr(EUR.resto$date, 1,4)
2004 Jun 15
3
slope estimations of teeth like data
Dear all Suppose I have teeth like data similar like x <- 1:200 y <- 0.03*x[1:100]+rnorm(100, mean=.001, sd=.03) z <- 3-rep(seq(1,100,10),each=10)*.03+rnorm(100,mean=.001, sd=.03) plot(x,c(y,z)) and I want to have a gradient estimations for some values from increasing part of data like y.agg <- aggregate(diff(c(y,z)), list(rep(seq(1,200,10),each=10)[1:199]), mean) y.agg[1:10,]
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