Displaying 20 results from an estimated 11495 matches for "datasets".
2025 May 07
2
Help merging large datasets in R
Hi guys,
For my MSc. thesis i am using R studio. The goal is for me to merge a couple (6) of relatively large datasets (min of 200.000 and max of 2mil rows). I have now been able to do so, however I think something might be going wrong in my codes.
For reference, i have a dataset 1 (200.000), dataset 2 (600.000), dataset 3 (2mil) and dataset 4 (2mil) merged into one dataset of 4mil, and dataset 5 (4mil) and dataset...
2012 Jun 05
0
Memory leak during instantiation of a reference class?
Hi,
I have a problem with a large data set wrapped in a reference class. I do that to access the data by reference from within various functions in a script.
# The class definition:
setRefClass("data",
fields = list(h5_df = "list",
training_data = "array",
2010 Nov 11
8
zpool import panics
Hi,
I just had my Dell R610 reboot with a kernel panic when I threw a couple
of zfs clone commands in the terminal at it.
Now, after the system had rebooted zfs will not import my pool anylonger
and instead the kernel will panic again.
I have had the same symptom on my other host, for which this one is
basically the backup, so this one is my last line if defense.
I tried to run zdb -e
2007 Oct 29
1
biserial correlation with pkg polycor
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2010 Apr 08
1
ZFS monitoring - best practices?
We''re starting to grow our ZFS environment and really need to start
standardizing our monitoring procedures.
OS tools are great for spot troubleshooting and sar can be used for
some trending, but we''d really like to tie this into an SNMP based
system that can generate graphs for us (via RRD or other).
Whether or not we do this via our standard enterprise monitoring tool
or
2000 Feb 28
1
Parser Bug Somewhere.... (PR#460)
Full_Name: John P Cavanaugh
Version: .99
OS: linux
Submission from: (NULL) (24.116.10.99)
dataset$ema12 <- EMA (dataset$Close,12)
dataset$ema26 <- EMA (dataset$Close,26)
dataset$MACD_fast <- dataset$ema26 - dataset$ema12
dataset$MACD_slow <- EMA(dataset$MACD_fast,9)
dataset$MACD_hist <- dataset$MACD_fast - dataset$MACD_slow # This line doesnt
work!!!
But... if I does work if I
2025 May 07
2
Help merging large datasets in R
...the code correct there should be no problem expanding to the real data.
Tim
-----Original Message-----
From: R-help <r-help-bounces at r-project.org> On Behalf Of Deelen, M. (Mirjam) via R-help
Sent: Wednesday, May 7, 2025 2:54 AM
To: r-help at r-project.org
Subject: [R] Help merging large datasets in R
[External Email]
Hi guys,
For my MSc. thesis i am using R studio. The goal is for me to merge a couple (6) of relatively large datasets (min of 200.000 and max of 2mil rows). I have now been able to do so, however I think something might be going wrong in my codes.
For reference, i have a da...
2010 Dec 01
2
Lattice dotplots
Dear,
I have a dataset with 4 subjects (see ID in example), and 4 treatment (see
TRT in example) which are tested on 2 locations and in 3 blocs. By using
Lattice dotplot, I made a graph that shows the raw data per location and
per bloc. In that graph, I would like to have a reference line per bloc
that refers to the first treatment (T1). However, I can not find how to do
that.
I can make
2009 Feb 27
5
Filtering a dataset's columns by another dataset's column names
Hello all,
I hope some of you can come to my rescue, yet again.
I have two genetic datasets, and I want one of the datasets to have only the columns that are in common with the other dataset.
Here is a toy example (my real datasets have hundreds of columns):
Dataset 1:
Individual SNP1 SNP2 SNP3 SNP4 SNP5
1 A G T C A
2 T C A G T
3 A C...
2005 Mar 16
1
working with pairlists imported from HDF5, converting to data frames?
I've used the HDF5 library to bring some data into R. THe verbose output
looks like this:
>
hdf5load("hdfGraphWed_Mar_16_13_33_37_2005.hdf",load=T,verbosity=1,tidy=T)
Processing object: cprSeats ...... which is a Group
Processing object: Seats 0 ...... its a dataset......Finished dataset
Processing object: Seats 1 ...... its a dataset......Finished dataset
Processing object:
2012 Dec 12
2
using 'apply' to apply princomp to an array of datasets
Hi everyone,
Suppose I have a 3D array of datasets, where say dimension 1 corresponds to
cases, dimension 2 to datasets, and dimension 3 to observations within a
dataset. As an example, suppose I do the following:
> x <- sample(1:20, 48, replace=TRUE)
> datasets <- array(x, dim=c(4,3,2))
Here, for each j=1,2,3, I'd like to think...
2025 May 08
1
Help merging large datasets in R
...e no problem expanding to the real data.
>
>Tim
>
>-----Original Message-----
>From: R-help <r-help-bounces at r-project.org> On Behalf Of Deelen, M. (Mirjam) via R-help
>Sent: Wednesday, May 7, 2025 2:54 AM
>To: r-help at r-project.org
>Subject: [R] Help merging large datasets in R
>
>[External Email]
>
>Hi guys,
>For my MSc. thesis i am using R studio. The goal is for me to merge a couple (6) of relatively large datasets (min of 200.000 and max of 2mil rows). I have now been able to do so, however I think something might be going wrong in my codes.
>Fo...
2006 Jul 18
4
add dataset
Hi,
a simple question..
is add dataset not part of zonecfg ?
global# zonecfg -z myzone (OK)
zonecfg:myzone> add dataset (fails as there is no dataset option)
zonecfg:myzone> add zfs (fails as there is no dataset option)
Basically how do I add a dataset to a zone ?
Thanks
Roshan
please cc me pererar at visa.com
2011 Feb 09
5
Removing Outliers Function
I am working on a function that will remove outliers for regression analysis.
I am stating that a data point is an outlier if its studentized residual is
above or below 3 and -3, respectively. The code below is what i have thus
far for the function
x = c(1:20)
y = c(1,3,4,2,5,6,18,8,10,8,11,13,14,14,15,85,17,19,19,20)
data1 = data.frame(x,y)
rm.outliers =
2011 Sep 08
2
help subsetting data based on date AND time
Dear R Community,
I am new to R, and have a question that I suspect may be quite simple but is
proving a formidable roadblock for me. I have a large data set that
includes water-quality measurements collected over many 24-hour periods.
The date and time of sample collection are in a combined Date/Time field in
the format yyyy-mm-dd hh:mm:ss. I need to be able to subset the data for
analysis of
2012 Jan 24
5
drop columns whose rows are all 0
Hello,
I have a dataset with 40 variables, some of them are always 0 (each
row). I would like to make a subset containing only the columns which
values are not all 0, but I don't know how to do it.
I tried:
for(cut_column in 1:40) {
if(sum(dataset[,cut_column])!=0) {
columns_useful<-c(columns_useful,dataset[cut_column])
}
}
sorted_dataset<-subset(dataset,
2009 Jul 24
7
How to create a permanent dataset in R.
Hi everybody,
Actually, we know that If we create a dataset in R ,after closing the
session the dataset automatically is closed. I tried for creating dataset
permanently in R.I am facing the problem of creating permanent dataset.
can we create dataset permanently If possible?
Could somebody help me out in this aspect,plz? Any help would be
appreciated.
Thanks in advance.
--
View this message
2009 Jul 24
7
How to create a permanent dataset in R.
Hi everybody,
Actually, we know that If we create a dataset in R ,after closing the
session the dataset automatically is closed. I tried for creating dataset
permanently in R.I am facing the problem of creating permanent dataset.
can we create dataset permanently If possible?
Could somebody help me out in this aspect,plz? Any help would be
appreciated.
Thanks in advance.
--
View this message
2009 Oct 12
1
Loading data to Trellis barchart plot.
Dear all,
I have a question about loading the data to barchart plot. I know this could
be a very easy question, but I just can not get my head around.
What I need to do is to create a trellis plots barchart style (horizontal
bar), with levels of one variable (ie. variable “colour” in my example) as
ylab and frequency as xlab on each trellis plot. The trellis plots is
separated based on
2009 Jul 27
2
create dataset permanently in package (i.e. default or our own package)
Hi,
actually while opening R console and R commander we see some packages like
car and datasets. in this packages we have default datasets are available.
example: women and prestige like that. now i created a sales dataset
importing from excel, xml or text file. now i want to store that dataset
permanently in any one of the package like i mentioned above (car or
datasets). now i closed my R...