Displaying 20 results from an estimated 100 matches similar to: "Lectura Archivo JSON"
2018 Apr 18
3
Pasar variables de data frame a una sola variable
Hola erreros!
Acudo de nuevo a ustedes porque ando enredado con algo que debe ser simple
pero que no consigo. Lo que ando buscando hacer es pasar todas las
variables de un dataframe a solo una variable (columna) con la info
apilada. Lo que tengo es un dataframe así (con 200 variables y 30,000
filas):
Var1 Var2 Var3
1 5 9
2 6 10
3 7 11
4 8 12
y lo que necesito es convertirlo a:
Var1
1
2
3
4
5
6
2013 Aug 01
2
Integrales, limites
Cordial saludo quiero saber como calculo integrales impropias e indefinidas
en R, y como calcular limites
soy nuevo en R
Muchas gracias
Harvey Vargas
"El verdadero perdedor no es aquél que no gana. El verdadero perdedor es
aquél que tiene tanto miedo a no ganar que ni siquiera lo intenta". Alan
Arkin
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2006 Feb 08
29
Autocomplete and Firefox
Having problems with the autocomplete on my linux box and firefox.
When I use form tags it breaks, without form tags everything works fine.
Exact copy of the example provided, but I added form tags.. The initial
search and select works but then the box sort of "locks up" and I can''t
change it at all, If I do try to type something nothing changes but a
second later the whole
2009 Sep 05
5
Filling Wx::ListCtrl with contents
Hi all,
I''ve got a question concerning ListCtrl_virtual of wxRuby since I see no
way filling the list with dynamic contents. I''m new to Ruby so I maybe
have to apologise for my request.
The problem is, that I have to define the on_get_item_text(item, col)
function. There I would like to use the item and col variables to read
data from a two-dimensional array. My very problem
2013 Feb 14
3
list of matrices --> array
i'm somehow embarrassed to even ask this, but is there any built-in
method for doing this:
my_list <- list()
my_list[[1]] <- matrix(1:20, ncol = 5)
my_list[[2]] <- matrix(20:1, ncol = 5)
now, knowing that these matrices are identical in dimension, i'd like
to unfold the list to a 2x4x5 (or some other permutation of the dim
sizes) array.
i know i can initialize the array, then
2011 Sep 27
2
Matrix and list indices
Hi guys,
I am trying to replace all elements of earth that are equal to zero with their corresponding elements in mars. I can do the replace with a bunch of for-loops, but I don't think this is the R way of doing things.
my_list <- list( earth=array(c(0,0,45,0,0,45,0,45),dim=c(2,2,2)), mars=array(c(8:1),dim=c(2,2,2)))
my_list
for (i in c(1:2)) {
for (j in c(1:2)) {
2011 Jun 15
12
Create or Update Model with JSON?
Having issue updating a model with JSON. I simply *"model.attributes=json"*,
which does update the attributes but not the id, or uuid in this case. I
want to save or create the record (if it''s id exists). Seems like this would
be documented, but I''m not finding anything. I''m using a MOM to pass JSON
between apps. Thanks.
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2015 May 16
2
[RFC 4/4] rpmsg: DMA map sgs passed to virtio
On Thu, May 7, 2015 at 3:28 AM, Edgar E. Iglesias
<edgar.iglesias at gmail.com> wrote:
>
> On Wed, May 06, 2015 at 03:51:48PM +0930, Rusty Russell wrote:
> > "Edgar E. Iglesias" <edgar.iglesias at gmail.com> writes:
> > > From: "Edgar E. Iglesias" <edgar.iglesias at xilinx.com>
> > >
> > > Signed-off-by: Edgar E. Iglesias
2015 May 16
2
[RFC 4/4] rpmsg: DMA map sgs passed to virtio
On Thu, May 7, 2015 at 3:28 AM, Edgar E. Iglesias
<edgar.iglesias at gmail.com> wrote:
>
> On Wed, May 06, 2015 at 03:51:48PM +0930, Rusty Russell wrote:
> > "Edgar E. Iglesias" <edgar.iglesias at gmail.com> writes:
> > > From: "Edgar E. Iglesias" <edgar.iglesias at xilinx.com>
> > >
> > > Signed-off-by: Edgar E. Iglesias
2015 May 01
5
[RFC 0/4] rpmsg: Fix init of DMA:able virtqueues
From: "Edgar E. Iglesias" <edgar.iglesias at xilinx.com>
I'm trying to run rpmsg and remoteproc on the ZynqMP (arm64) but I'm hitting
a DMA/mm error. The issue was discussed here:
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-March/333050.html
Russel King pointed out that the arm64 is not doing anything wrong by
returning vmapped memory (which is incompatible
2015 May 01
5
[RFC 0/4] rpmsg: Fix init of DMA:able virtqueues
From: "Edgar E. Iglesias" <edgar.iglesias at xilinx.com>
I'm trying to run rpmsg and remoteproc on the ZynqMP (arm64) but I'm hitting
a DMA/mm error. The issue was discussed here:
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-March/333050.html
Russel King pointed out that the arm64 is not doing anything wrong by
returning vmapped memory (which is incompatible
2015 May 06
2
[RFC 4/4] rpmsg: DMA map sgs passed to virtio
"Edgar E. Iglesias" <edgar.iglesias at gmail.com> writes:
> From: "Edgar E. Iglesias" <edgar.iglesias at xilinx.com>
>
> Signed-off-by: Edgar E. Iglesias <edgar.iglesias at xilinx.com>
First off, I have handed maintainership off to Michael S. Tsirkin, so
his word is now law.
That said... there's nothing fundamentally *wrong* with this, but
2015 May 06
2
[RFC 4/4] rpmsg: DMA map sgs passed to virtio
"Edgar E. Iglesias" <edgar.iglesias at gmail.com> writes:
> From: "Edgar E. Iglesias" <edgar.iglesias at xilinx.com>
>
> Signed-off-by: Edgar E. Iglesias <edgar.iglesias at xilinx.com>
First off, I have handed maintainership off to Michael S. Tsirkin, so
his word is now law.
That said... there's nothing fundamentally *wrong* with this, but
2008 Jan 08
1
storing matrices in a list or vector and preserve dimensions
Hi all,
As an R newbie, I wonder how I can store multiple matrices in a list()
or vector() object without losing their structure. I should be able to
retrieve the matrix from the list later on.
If I just append() the matrices to a list() object, they automatically
lose their dimensions, whereas I would like to preserve the dimensions
of the matrices.
Is there any function in R which allows
2010 Jun 18
5
convertir archivo texto en data frame
Tengo un archivo de texto donde cada línea es de la siguiente forma:
"aa-mm-dd hh:mm:ss Nombre Apellido"
¿Hay alguna forma de usar read.table o algo similar para obtener
directamente un data frame que tenga dos columnas donde una tenga la
fecha y quede de tipo PosiX y la otra character con el nombre
completo?
Gracias,
Sebastián.
2013 Aug 14
1
local variable assignment: first copies from higher frame?
hi all -- this might not be the correct list for this
question/discussion, though R-help didn't seem like the correct venue,
either, so...
i'm looking for just some extra clarification of how local variables
are defined/bound, beyond the simple cases given in the Language
document.
the particular instance is when there is variable assignment inside a function.
normally, this creates a
2012 Feb 29
2
Using a FOR LOOP to name objects
Hello,
I am trying to use a for loop to name objects in each iteraction. As in the
following example (which doesn't work quite well)
my_list<-c("A","B","C","D","E","F")
for(i in c(1:length(my_list))){
url<- "http://finance.yahoo.com"
doc = htmlTreeParse(url, useInternalNodes = T)
tab_nodes = xpathApply(doc,
2012 Sep 24
2
De una grafica hallar el valor en un punto
Acudo a su conocimiento apara obtener ayuda
Se tiene un gráfico como el que les adjunto, es un gráfico de un
instrumento meteorológico el cual registra información de un día, se quiere
hallar el valor en el corte de la gráfica y la vertical Horaria (8 , 9, 10,
...) el cual se registra como valor de la obserbacion, despues debo
realizar analisis estadistico.
Gracias
Luis Augusto López Gómez
2018 Jul 21
2
Lanzar R desde Shiny server
Buenas
No se si se puede y por eso acudo a esta comunidad..
Quiero lanzar
Obtener Outlook para Android<https://aka.ms/ghei36>
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2013 Nov 26
1
dynamic lists at C level
Dear R-devel,
I am trying to do something similar to dynamic length lists in R, but
at C level.
In R, that would be rather trivial:
- determine the length of the list
- create the list object
- store the values for each component
- access value components by using "[["
At C level, for a single component where I need to store a vector of
length 5, I do:
int *p_result;
SEXP my_list =