Displaying 20 results from an estimated 2000 matches similar to: "Operating on each row of data frame"
2010 Feb 25
5
Plotting 15 million points
Hi All
I have a vector of about 15 million numbers which I would like to
plot. The goal is the see the distribution. I tired the usual steps.
1. Histogram : never gets complete my window freezes w/out log base 10
2. Density : I first calculated the kernel density and then plotted
it which worked.
It would be nice to superimpose histogram with density but as of now I
am not able to get this
2012 Feb 06
2
dividing values of each column in a dataframe
Hey Guys
I want to divide(numerically) all the columns of a data frame by
different numbers. Here is what I am doing but getting a weird error.
The values in each column are not getting divided by the corresponding
value in the denominator vector instead by the alternative values. I
am sure I am messing up something.
Appreciate your help
-Abhi
head(counts)
WT_CON WT_RB MU_CON
2009 Sep 09
4
Joining Characters in R {issue with paste}
Hi Guys
I am want to join to strings in R. I am using paste but not getting
desirable result.
For the sake of clarity, a quick example:
> a="Bio"
> b="iology"
> paste(a,b)
[1] "Bio iology"
*There is a SPACE in the word biology which is what I dont want *
Thanks,
-Abhi
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2011 May 05
2
quick question : interpolating file name in pipe command
Hi Guys
I am trying to read a bunch of files in the loop but pipe function
which I use to cut few columns is somehow unable to interpolate the
file variable.
eg:
> file="check.txt"
> data <- read.table(pipe("cut -f 2,3 file"), sep="\t", col.names=c('pos','cov') )
cut: file: No such file or directory
how can I pass variable file to pipe
2009 Sep 07
2
Writing R Scripts and passing command line arguments
Hi Guys
I am Abhishek, primarily a bioinformatician. I have recently started using
a lot of R thanks to some excellent packages available.
Lately I have felt the need to batch process few of the R scripts I have
been working with and strangely enough I am not able to find a good resource
on how to best do this. I did find few old threads on the archives but none
convinced me much. So here I am
2010 Apr 06
2
Merging data frames on two conditions
Hi Guys
I have two data frames which I would like to merge on two conditions.
I am doing the following (abstract form)
new.data.frame <- merge(df1,df2, by=c("Col1","Col2"))
It is giving me a null result.
Basically I need to apply two conditions.
I also tried sqldf but it is running forever. Will indexing help ?
temp <- sqldf("select
2013 Apr 06
2
manipulating R contingency tables
Hi Guys
I am back with another thing that's puzzling me.
I am creating contingency tables but then I want to filter out certain
columns and also find if any entry in the table is 0.
Example:
gts
labels A1 B2 G3
1 21 127 120
2 23 112 0
Here I want to remove B2 column from this table and also if any entry is 0
in this case G3 second row.
Missing out on how to do
2010 Apr 05
1
Adding a prefix to all values in a col in a data.frame
Hi All
I am looking for a way to prefix a constant value to all the rows in column
in a data frame.
Eg.
V1
2
3
4
5
I want to make it like this
V1
number2
number3
number4
number5
Thanks!
-Abhi
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2010 Aug 19
1
modifying factors in a data frame
Hi All
I have a data frame in which on the columns is a factor with following
levels
Levels: M006 M0114 M0379 M0432 M0823 M1012 M1096 M1107 SW393 SW708
I want to change all the M006 to "1", M0114 to "2" and so on. What I am
trying is not working.
data1$sample[data1$sample =='M006'] <- "1"
Warning message:
In `[<-.factor`(`*tmp*`, data1$sample ==
2011 Oct 24
2
Comparing two gff/gtf files : de novo transcripts v/s reference
Hi All
I am wondering if people based on their experience could share what methods
one could use to compare two gff/gtf files. The reason why I want to do so
is that we have constructed a RNA-Seq based transcriptome and would like to
compare it with reference transcriptome we had from in-silico approaches.
Ideally we are looking to find out
1. new genes we see
2. transcripts where the
2009 Nov 16
1
Normalization of Data
Hi All
I am looking for some resource to learn data normalization. I understand I
am talking very broad here, I need something like a primer to give me a jump
start. If you happen to know any good resource please do let me know.
Cheers,
-Abhi
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2016 Mar 08
2
Need Help to Fix CVE-2008-1483, CVE-2008-5161, CVE-2015-5600 and CVE-2015-6565
Hi Gert,
Thanks for your reply.
But we can't upgrade to 7.2 version also we don't have plan to upgrade in
near future. Can I fix these vulnerabilities in the current version?
Regards
Abhishek
On Tue, Mar 8, 2016 at 6:42 PM, Gert Doering <gert at greenie.muc.de> wrote:
> Hi,
>
> On Tue, Mar 08, 2016 at 06:14:01PM +0530, abhi dhiman wrote:
> > Actually I am working
2012 May 31
2
[LLVMdev] DFG of machine functions
Hi,
I am trying to generate the DFG of machine functions.
Initially, I added a pass to generate the DFG of LLVM IR functions. This
was based on the mail thread -
http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-September/025582.html. This
pass worked fine and I was able to generate DFG of LLVM IR functions.
Later, I ported the DFG pass code for machine functions. I ported the
InstIterator.h
2016 Mar 08
4
Need Help to Fix CVE-2008-1483, CVE-2008-5161, CVE-2015-5600 and CVE-2015-6565
Hi All,
Actually I am working with the OpenSSH version 6.2p which is vulnerable to
above mentioned vulnerabilities.
So am looking for some help how I can fix these vulnerabilities in my
version. I need to fix it in the OpenSSH code.
Regards
Abhishek
2009 Apr 21
3
attachment_fu giving problem on production
Hello friends,
I have configured attachment_f. It''s working fine on Local(development)
system but giving problem on production. Basically on production the
attachment_fu is not able to generate thumbnail image it saving the original
size image. Below is the configuration.
has_attachment :content_type => :image,
:storage => :file_system,
:max_size
2012 May 10
1
envfit output (vegan package) - not sure what it means
I'm pretty new to R and would appreciate some help interpreting the output of
a function that was recommended to me.
I've used the *envfit *function in the vegan package to plot vectors of four
climate variables onto a species matrix ordination. The output indicates
that only a single variable (mean_temp) is significant:
***VECTORS
NMDS1 NMDS2 r2
2010 Aug 17
2
Independent variables omitted in lm and glm
Dear List,
Some independent variable were missing in calculation using lm and glm
(gaussian).
(X= Y1+Y2+…..+Y16, Independent number: 16 variable)
However, those variables did work well in cor(X, Y) respectively.
str(dataframe) was also run to ensure that the variables were all numbers.
Moreover, the missing variables were different in lm and glm.
In lm, 3 factors were not taken into
2012 Jun 02
0
[LLVMdev] DFG of machine functions
I tried debugging it and the issue seems to be in the implementation of
MachineInstrIterator.h and the way it interacts with GraphWriter.h
functions. I found this by replacing the ( template <> struct
GraphTraits<MCDFGraph<MachineFunction*> >) with a similar MCDFGraph based
template of CFG similar to the one in MachineFunction.h (similarly
replacing the DOTGraphTraits with the
2010 Apr 27
2
Passing values to a function when using apply
Hi All
Slightly lost on how should I pass values to a function I am calling
using apply.
apply( veh_drg_animal1[ , c("readCount","gene_length")] ,1, stats() )
here stats is a custom function where I want to pass two parameters
from data frame as shown and a third argument which is constant per
instance of apply.
stats <- function ( arg1,agr2,agr3) {
## computation
2016 Dec 20
2
Need Help to Fix CVE-2016-6210
Hi All,
Actually I am working with the OpenSSH version 6.2p which is vulnerable to
above mentioned vulnerabilities (CVE-2016-6210).
So am looking for some help how I can fix these vulnerabilities in my
version. I need to fix it in the OpenSSH code.
Regards
Abhishek