Displaying 20 results from an estimated 116 matches for "parra".
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para
2010 Feb 23
2
Importing a file to r
Hello
I am trying to import the attached file Curva LIBOR to R. I am trying to use
the following commands and obtaining the following errors
> res <- read.xlsx("C:\\Users\\FELIPE
PARRA\\Documents\\Quantil\\Federacion\\Curva LIBOR.xlsx", 4)
Error en .jcall(rowCells[[ic]], "I", "getColumnIndex") :
RcallMethod: invalid object parameter
> res <- read.xlsx("C:/Users/FELIPE PARRA/Documents/Quantil/Federacion/Curva
LIBOR.xlsx", 4)
Error en .jca...
2010 Dec 15
6
Numbers in a string
Hello, I have stings which have all sort of characters (numbers, letters,
punctuation marks, etc) I would like to stay only with the numbers in them,
does somebody know how to do this?
Thank you
Felipe Parra
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2012 Sep 11
2
splines package
Hello all,
I have been working with b-splines and noted that the splines package is
not available in CRAN. Does any body know what happened with it?
Or, is there any package that replaces it?
Thank you
Felipe Parra
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2010 Sep 26
4
Problem with unlist
...get for each element of the list the element called
Pluv3Meses. The whole list has 5065 elements but when I try to unlist it I
am getting 5081 elements I don't know why:
> length(unlist(sapply(SumaPluvi,"[",1)))
[1] 5081
Does anybody know what can be happening?
Thank You
Felipe Parra
2010 May 12
3
Calling a list element
...BEJORRAL"
[[2]]
[1] "META" "ACACIAS"
[[3]]
[1] "CASANARE" "AGUAZUL"
[[4]]
and I would like to make a vector of the first element of each of the list
items, in this case ANTIOQUIA, META, CASANARE, etc . Do you know how can I
do this?
Thank you
Felipe Parra
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2010 Sep 29
2
boxplot
Hello, does somebody know in a boxplot, what does each element in the
boxplot represent?
1. lines at the extremes of the dotted lines?
2. Extremes of the boxes
3. Black line in the middle of the box?
4. notches?
Thank you
Felipe Parra
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2017 Apr 12
2
CELT CFFT size configuration
...ich can appear if a change
that configuration for a cfft of size 2048, some of you could give me some
support about that?, I ask because the library which I'm using doesn't
support 1920 size.
please let me know, I you need I could be more specific.
thanks you so much.
--
Diego Alejandro Parra Guzmán
Estudiante de ingeniería electrónica
Universidad distrital FJC
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2017 Apr 11
2
MDCT implementation and his overlapped relationship
...plain me if the implementation had been thought for different
overlapped values, or instead the implementation uses only the overlap
equal to N/2.
Additional I want to know in case of overlapped values different to N/2
which values had been considered.
Thanks for you support.
--
Diego Alejandro Parra Guzmán
Estudiante de ingeniería electrónica
Universidad distrital FJC
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2010 Nov 22
4
Rexcel
Hello I am new to RExcel and I would like to run a source code form the
excel worksheet. I would like to run the following code
source("C:\\Quantil Aplicativos\\Genercauca\\BackwardSelectionNC.r")
from the excel wroksheet. Does anybody know how to do this?
Thank you
Felipe Parra
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2017 Apr 18
2
Optimization points
...cover specific
optimization points, I want to know if you could give me a general view
about of the principal points that I have to consider in order to optimize
it for that specific architecture, specifically in which files I have to
work.
Thanks for you support
Best regards
--
Diego Alejandro Parra Guzmán
Estudiante de ingeniería electrónica
Universidad distrital FJC
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2011 Feb 08
2
Stopping between multiple graphs
Hello. I would like to know if there is a command for stopping between
multiple grpahs. I have a for in which I create a graph in each iteration. I
would like R to wait for a click or an enter to pass to the next graph. Does
anybody know how can this be done. Thank you
Felipe Parra
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2011 Mar 09
2
trunc function
...a function like trunc but
where i can choose how many decimal places can I stay with in the number I
have (sort of the same as the trunc function in excel). I would like, for
example if I have the number 0.974678 and I choose to stay with 3 decimal
places to have as ouput 0.974.
Thank you
Felipe Parra
[[alternative HTML version deleted]]
2017 May 03
0
MDCT implementation and his overlapped relationship
...es how CELT and SILK had implemented a look/up
head delay of (2.5ms), (5ms) respectively , could you explain me>
1) those values are fixed.
1) how you guarantee those values independent of the architecture's
performance.
Thanks so much
On Tue, Apr 18, 2017 at 10:05 AM, Diego Alejandro Parra Guzman <
daparrag at correo.udistrital.edu.co> wrote:
> thanks you so much for your answer.
>
> On Thu, Apr 13, 2017 at 8:59 AM, Jean-Marc Valin <jmvalin at jmvalin.ca>
> wrote:
>
>> Hi Diego,
>>
>> You might find figure 3 or this paper useful:
>>...
2013 May 15
1
Problem with convergence in optim
...0
$v
[1] 74.84273
Solution2:
$par
beta1 beta2 beta3 lambda
1 0.06537061 0.001474822 -0.0759236 0.5
$e2
[1] 74.84273
$conv
[1] 10
$v
[1] 74.84273
My intuition tells me the correct solution is no convergence. Does anybody
know why this might be happening.
Thank you
Felipe Parra
[[alternative HTML version deleted]]
2011 Apr 22
2
Matching a vector with a matrix row
...as the given vector.
What I am doing at the moment is using apply as follows:
apply(Matrix,1,function(x)all(x%in%LHS))
but this isn't too fast actually. I would like to know if any body knows an
efficient (fast) way of doing this? The matrix contains stings (not
numbers).
Thank you
Felipe Parra
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2010 May 31
2
Problems with apply
...1 }
if( length(which(as.Date(AnaQuim$A?O1)>=as.Date(HistRio$FechaSiembra[i])))>0
& length(which(as.Date(AnaQuim$A?O1)<=as.Date(HistRio$FinCorte[i])))>0 ){
xx[4] <- 2}
}
I get no error message. Attached is the data I am using. Any idea of why
this is happening?
Thank you
Felipe Parra
2010 Apr 05
1
predict.lm
...ModeloLineal is the output from ModeloLineal<-lm(dataTS[,6] ~
predictors[1:720,]), so the first 720 observations of predictors i would
like to use them to build my model and the other 48 I would like to use them
to have an out of sample forecast, Do you know how can I do this?
Thank you
Felipe Parra
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2010 Sep 16
1
Problems creating a Panel
...> PanelRio = DataRiopaila[which(duplicated(DataRiopaila$SEC_STE)==T),]
> length(which(is.na(PanelRio[,"Pluv3Meses"])==T))
[1] 474
> nrow(PanelRio)
[1] 4129
which means there are still around 3500 entries which aren't NA. Does
anybody what can be going on?
Thank you
Felipe Parra
2010 Dec 03
2
Replacing a period in a string
Hello I have a sting of the form "12.084.547,17" which I would like R to
understand as a number which has "," as the decimal separator, does anybody
know how to do this?
thank you
Felipe Parra
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2010 Mar 02
2
Binding a matrix to a matrix
Hello I have a 2x10x200 matrix and I would like to bind to it another 2x10
matrix in order to end up with an 2x10x2001 matrix, which command should i
use in order to do this? Thank you
Felipe Parra
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