Displaying 20 results from an estimated 6000 matches similar to: "R-alpha: Re^3: data file names"
2007 Mar 10
3
long character string problem
Hi All
I am having 2 very long character strings (550chars) and I want to put them as
expressions together with c(). The problem is that I also get these
double-quotes, as seen below in 'fct'. How can I remove these double-quotes? I
tried as.name() but it did not work (because of size?). These are creating
trouble with subsequent programs, which I tested with strings that for some
2017 Dec 21
1
[bug report] null ptr deref in nouveau_platform_probe (tegra186-p2771-0000)
I applied the changes manually. This time, Xorg is actually starting...
[ 16.862744] WARNING: CPU: 3 PID: 381 at
drivers/gpu/drm/nouveau/nouveau_bo.c:280 nouveau_bo_new+0x450/0x4d0
[nouveau]
[ 16.873333] Modules linked in: nouveau i2c_algo_bit ttm tegra_drm
gpio_keys drm_kms_helper drm drm_panel_orientation_quirks(P) host1x
dwmac_dwc_qos_eth stmmac_platform stmmac ptp pps_core
syscopyarea
2012 Nov 28
1
Help setting optimization problem to include more constraints
Dear R-helpers,
I am struggling with an optimization problem at the moment and decided to
write the list looking for some help. I will use a very small example to
explain what I would like to. Thanks in advance for your help.
We would like to distribute resources from 4 warehouses to 3 destinations.
The costs associated are as follows:
Destination
>From 1 2 3 Total
2018 Feb 20
0
Take the maximum of every 12 columns
Hi Milu,
byapply(df, 12, function(x) apply(x, 1, max))
You might also be interested in the matrixStats package.
Best,
Ista
On Tue, Feb 20, 2018 at 9:55 AM, Miluji Sb <milujisb at gmail.com> wrote:
> Dear all,
>
> I have monthly data in wide format, I am only providing data (at the bottom
> of the email) for the first 24 columns but I have 2880 columns in total.
>
> I
2005 Aug 15
2
queer data set
I have a dataset that is basically structureless. Its dimension varies
from row to row and sep(s) are a mixture of tab and semi colon (;) and
example is
HEADER1 HEADER2 HEADER3 HEADER3
A1 B1 C1 X11;X12;X13
A2 B2 C2 X21;X22;X23;X24;X25
A3 B3 C3
A4 B4 C4 X41;X42;X43
A5 B5 C5 X51
etc., say. Note that a blank
2018 Feb 22
0
Sink redundant spill after RA
From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Jun Lim
via llvm-dev
Sent: Thursday, February 22, 2018 11:05 AM
Hi All,
I found some cases where a spill of a live range in a block is reloaded only
in one of its successors, and there is no reload in other paths through
other successors. Since the spill is reloaded only in a certain path, it
must be okay to sink such
2018 Feb 20
0
Take the maximum of every 12 columns
The maximum over twelve columns is the maximum of the twelve maxima of
each of the columns.
single_col_max <- apply(x, 2, max)
twelve_col_max <- apply(
matrix(single_col_max, nrow = 12),
2,
max
)
ir. Thierry Onkelinx
Statisticus / Statistician
Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
AND FOREST
Team Biometrie
2018 Feb 22
2
Sink redundant spill after RA
Hi All,
I found some cases where a spill of a live range in a block is reloaded only
in one of its successors, and there is no reload in other paths through
other successors. Since the spill is reloaded only in a certain path, it
must be okay to sink such spill close to its reloads. In the AArch64 code
below, there is a spill(x2) in the entry, but this value is reloaded only
in %bb.1, not in
2018 Feb 22
0
Sink redundant spill after RA
> From: junbuml at codeaurora.org [mailto:junbuml at codeaurora.org]
> Sent: Thursday, February 22, 2018 11:39 AM
>
> On 2018-02-22 11:14, gberry at codeaurora.org wrote:
> > FROM: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] ON BEHALF OF
> > Jun Lim via llvm-dev
> > SENT: Thursday, February 22, 2018 11:05 AM
> >
> > Hi All,
> >
> > I
2008 May 19
2
Help on nested FOR loops
I am new to more radical programming in R. I am trying to write a nested 'for' loop to produce output that takes subscripts like:
for i taking values 1,2,3,4,5 and
j taking values 1,2,3
I want to output for a computation using the combination values of i and j a value x like this;
i j x
1 1 x11
1 2 x12
1 3 x13
2 1 x21
2 2 x22
2 3 x23
3 1 x31
3 2 x32
2018 Feb 22
2
Sink redundant spill after RA
On 2018-02-22 11:14, gberry at codeaurora.org wrote:
> FROM: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] ON BEHALF OF
> Jun Lim via llvm-dev
> SENT: Thursday, February 22, 2018 11:05 AM
>
> Hi All,
>
> I found some cases where a spill of a live range in a block is
> reloaded only in one of its successors, and there is no reload in
> other paths through other
2018 Mar 14
0
truncation/rounding bug with write.csv
My apologies for not including sessionInfo(), and I'm a bit angry at myself
for that. Retrying in a fresh session of R, I get different results. More
specifically, I get the expected result where accuracy is the same in the
first and the last line. As I didn't include my sessionInfo() in my
previous mail, I can't figure out why I now have a different result. So I'm
positive
2005 Sep 11
1
Create New variable
Dear All,
I want to create one numeric variable from a factor one. here is a simple example:
x1 x2 factor
x11 x21 f1
x12 x22 f1
x13 x23 f2
x14 x24 f3
. . .
. . .
Suppose that the variable factor has 3 levels (f1,f2,f3). I want to add to this data frame a numeric variable x4 in (v1,v2,v3) such that x4=v1 if factor = f1, x4 = v2 if
2018 Feb 20
0
Take the maximum of every 12 columns
Ista, et. al: efficiency?
(Note: I needed to correct my previous post: do.call() is required for
pmax() over the data frame)
> x <- data.frame(matrix(runif(12e6), ncol=12))
> system.time(r1 <- do.call(pmax,x))
user system elapsed
0.049 0.000 0.049
> identical(r1,r2)
[1] FALSE
> system.time(r2 <- apply(x,1,max))
user system elapsed
2.162 0.045 2.207
##
2018 Feb 20
0
Take the maximum of every 12 columns
Thank you for your kind replies. Maybe I was not clear with my question (I
apologize) or I did not understand...
I would like to take the max for X0...X11 and X12...X24 in my dataset. When
I use pmax with the function byapply as in
byapply(df, 12, pmax)
I get back a list which I cannot convert to a dataframe. Am I missing
something? Thanks again!
Sincerely,
Milu
2018 Feb 20
5
Take the maximum of every 12 columns
Dear all,
I have monthly data in wide format, I am only providing data (at the bottom
of the email) for the first 24 columns but I have 2880 columns in total.
I would like to take max of every 12 columns. I have taken the mean of
every 12 columns with the following code:
byapply <- function(x, by, fun, ...)
{
# Create index list
if (length(by) == 1)
{
nc <- ncol(x)
2018 Feb 20
3
Take the maximum of every 12 columns
This is what I was looking for. Thank you everyone!
Sincerely,
Milu
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2006 Mar 11
1
Non-linear Regression : Error in eval(expr, envir, enclos)
Hi..
i have an expression of the form:
model1<-nls(y~beta1*(x1+(k1*x2)+(k1*k1*x3)+(k2*x4)+(k2*k1*x5)+(k2*k2*x6)+(k3*x7)+(k3*k4*x8)+(k3*k2*x9)+(k3*k3*x10)+ (k4*x11)+(k4*k1*x12)+(k4*k2*x13)+(k4*k3*x14)+(k4*k4*x15)+(k5*x16)+(k5*k1*x17)+(k5*k2*x18)+(k5*k3*x19)+
2018 Feb 20
0
Take the maximum of every 12 columns
It looks like OP uses a data.frame, so in order to use matrixStats
(I'm the author) one would have to pay the price to coerce to a matrix
before using matrixStats::rowMaxs(). However, if it is that the
original data could equally well live in a matrix, then matrixStats
should be computational efficient for this task. (I've seen cases
where an original matrix was turned into a data.frame
2018 Feb 20
2
Take the maximum of every 12 columns
Don't do this (sorry Thierry)! max() already does this -- see ?max
> x <- data.frame(a =rnorm(10), b = rnorm(10))
> max(x)
[1] 1.799644
> max(sapply(x,max))
[1] 1.799644
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic