Displaying 20 results from an estimated 4000 matches similar to: "if else and loop for code in R"
2009 Nov 04
1
odfweave table styles
Hello List,
Does anyone have examples of custom formatting of tables in odfweave? I know
there is an example of this in the formatting.odt file that comes with the
package, but running that through odfweave gives the following error:
Error: chunk 13 (label=showTableStyles)
Error in names(x) <- value :
'names' attribute [1] must be the same length as the vector [0]
What I am really
2012 Feb 15
1
Using R with Netezza
We've recently installed a Netezza server and I am trying to integrate the R
GUI with this server and run functions using the server itself. I am able
to successfully connect to the server, but cannot get any of the
Netezza-specific R functions to work that exist in the package called "nza".
Specifically I am trying to start with a simple function from this package,
for example
2012 Jun 01
1
How to make a transaction class data?
Hi,
I have encounter a problem that my data a_data.frame is of data.frame class
with columns: sequenceID, eventID, items.
when I convert it to transaction class:
as(a_data.frame, "transactions")
All columns are grouped together under items, which is like this:
{sequenceID, eventID, items}
instead of the right form: sequenceID, eventID, {items}
Also when i read_baskets, there is
2003 Apr 26
1
predict/residual
I am having trouble understanding the way naresid is used when using
predict/residual in a new data frame.
>From the example below, the NAs are displayed when predicting inside the
original frame, but are dropped when applied to a new frame.
ultimately I need to cbind the residuals and predictions to a dataframe.
Any help would be appreciated. Thanks in advance.
>
2006 Dec 18
1
Memory problem on a linux cluster using a large data set
Hello,
I have a large data set 320.000 rows and 1000 columns. All the data has the values 0,1,2.
I wrote a script to remove all the rows with more than 46 missing values. This works perfect on a smaller dataset. But the problem arises when I try to run it on the larger data set I get an error “cannot allocate vector size 1240 kb”. I’ve searched through previous posts and found out that it might
2006 Apr 26
2
help in R
Hi,
I cant understand where I am going wrong.Below is my code.I would really appreciate your help.
Thanks.
> genfile<-read.table("c:/tina/phd/bs871/hw/genfile.txt",skip=1)
>
> #read in SNP data
> snp.dat <- as.matrix(genfile)
> snp.name <- scan("c:/tina/phd/bs871/hw/genfile.txt",nline=1,what="character")
Read 100 items
2011 Oct 27
3
2 x 3 Probability under the null
I have a 2 x 3 matrix called snp and I want to compute the following
probability:
choose(sum(snp[,1]), snp[1,1]) * choose(sum(snp[,2]), snp[1,2]) *
choose(sum(snp[,3]), snp[1,3])/choose(sum(snp), sum(snp[1,]))
but I keep getting Infs and NaNs. Is there a function that can do this in R?
--
Thanks,
Jim.
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2008 Feb 28
1
Errors melt()ing data...
Hi,
I'm trying to melt() some data for subsequent cast()ing and am
encoutering errors.
The overall process requires a couple of casts()s and melt()s.
########Start Session 1##########
## I have the data in a (fully) melted format and can cast it fine...
> norm1[1:10,]
Pool SNP Sample.Name variable value
1 1 rs1045485 CA0092 Height.1 0.003488853
2 1 rs1045485
2007 Jan 10
1
Fw: Memory problem on a linux cluster using a large data set [Broadcast]
Hi
I listened to all your advise and ran my data on a computer with a 64 bits procesor but i still get the same error saying "it cannot allocate a vector of that size 1240 kb" . I don't want to cut my data in smaller pieces because we are looking at interaction. So are there any other options for me to try out or should i wait for the development of more advanced computers!
2007 Jan 21
2
efficient code. how to reduce running time?
Hi,
I am new to R.
and even though I've made my code to run and do what it needs to .
It is taking forever and I can't use it like this.
I was wondering if you could help me find ways to fix the code to run
faster.
Here are my codes..
the data set is a bunch of 0s and 1s in a data.frame.
What I am doing is this.
I pick a column and make up a new column Y with values associated with that
2011 Apr 04
1
automating regression or correlations for many variables
Dear All,
I have a large data frame with 10 rows and 82 columns. I want to apply the
same function to all of the columns with a single command. e.g. zl <- lm
(snp$a_109909 ~ snp$lat) will fit a linear model to the values in lat and
a_109909. What I want to do is fit linear models for the values in each
column against lat. I tried doing zl <- (snp[,2:82] ~ snp$lat[,1]) but got
the following
2009 Jul 26
1
splitting multiple data in one column into multiple rows with one entry per column
Dear R colleagues,
I annotated a list of single nuclotide polymorphiosms (SNP) with the
corresponding genes using biomaRt. The result is the following
data.frame (pasted from R):
snp ensembl_gene_id
1 rs8032583
2 rs1071600 ENSG00000101605
3 rs13406898 ENSG00000167165
4 rs7030479
2012 Mar 05
1
Order a data frame based on the order of another data frame
Hi, I am trying to match the order of the rownames of a dataframe with
the rownames of another dataframe (I can't simply sort both sets
because I would have to change the order of many other connected
datasets if I did that): Also, the second dataset (snp.matrix$fam) is
a snp matrix slot:
so for example:
data_one:
x y
2013 Nov 08
1
SNPRelate: Plink conversion
Hi,
Following my earlier posts about having problems performing a PCA, I have
worked out what the problem is. The problem lies within the PLINK to gds
conversion.
It seems as though the SNPs are imported as "samples" and in turn, the
samples are recognised as SNPs:
>snpsgdsSummary("chr2L")
Some values of snp.position are invalid (should be > 0)!
Some values of
2020 Oct 09
0
2 D density plot interpretation and manipulating the data
Hi Abby,
Thanks for getting back to me, yes I believe I did that by doing this:
SNP$density <- get_density(SNP$mean, SNP$var)
> summary(SNP$density)
Min. 1st Qu. Median Mean 3rd Qu. Max.
0 383 696 738 1170 1789
where get_density() is function from here:
https://slowkow.com/notes/ggplot2-color-by-density/
and keep only entries with density > 400
2024 Nov 15
1
R coding to extract allele frequencies from NCBI for ALL alleles of one SNP?
Dear All,
The following code extracts from NCBI very nice output for ONE allele of a SNP (often the allele with the second largest frequency - usually termed the minor allele). It gives an average minor allele frequency from all NCBI sources (which is what I want, except I'd like the addition of data for all the other alleles of one SNP) plus a table of minor allele frequencies from each
2008 Feb 07
1
Problems reshaping data with cast()
Hi,
I'm trying to cast() some data, but keep on getting the following error...
> norm.all.melted.height <- transform(all.melted.height,
+ norm.height = value / ave(value,
SNP, Pool, FUN = max)
+ )
Warning messages:
1: In FUN(X[[147L]], ...) :
no non-missing arguments to max; returning -Inf
2: In FUN(X[[147L]],
2009 Aug 31
1
permutation test - query
Hi,
My query is regarding permutation test and reshuffling of genotype/phenotype
data
I have been using the haplo.stats package of R. for haplotype analysis and I
would like to perform an analysis which I'm requesting your advice.
I have a data set of individuals genotyped for 12 SNP and a dichotomous
phenotype.
At first, I have tested each of those SNP independently in order to bypass
2010 Mar 05
1
Error in inherits(x, "data.frame") : subscript out of bounds
Hi,
I have a list p with different size dataframes and length of over
8000. I'm trying to
calculate correlations between the rows of dataframes of this list and
columns of another
dataset (type data.frame also) so that first column is correlated with
all the rows in
the list dataframe. Some information from another dataset is also
included to the final
output (all.corrs). This worked a
2001 Oct 22
1
No subject
Dear all,
I may have overlooked something but the following piece of code causes me
trouble:
> a_data.frame(1:4)
> a
X1.4
1 1
2 2
3 3
4 4
> apply(a,2,cat)
1 2 3 4Error in ans[[1]] : subscript out of bounds
> apply(a,1,cat)
1234NULL
Is this the fact my data.frame has only one dimension ?
(and do I forget somewhere (but where ?) to specify not to 'drop'