Displaying 20 results from an estimated 10000 matches similar to: "New to R"
2012 Jun 10
4
generating random samples of IG distribution
Dear R users,
I want to generating random samples from Inverse Gaussian distribution . How can I do? and what package should I install?
Thanks.
Shirin
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2012 Jul 25
2
Query
Dear Sir,
I am a professor in one Engineering College. For some research work I want
to use the R Software for data analysis like corelation analysis,
Regression analysis, Hierarical Bayes techniques and get the tabular as
well as graphical output. Please send me a soft copy of the user manual
guide on my mail.
With Regards,
Prof S N Rajan
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2013 Feb 08
2
Count of Histogram Bins using Shingles with lattice
I know that I can get a count of histogram bins in base R with plot=FALSE. However, I'd like to do the same thing with lattice. The problem is that I've set up shingles, and I'd like to get the count within each bin within each shingle. plot=FALSE doesn't seem to do it.
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2012 Sep 26
3
rows extraction
Dear all,
I want to extract rows from a data frame shown here as "test". For example:
rows with with sorting
PKB123 PKB22 PKB23 PKB32 CTV19 CTV20 PKB11 PKB11
> dput(test)
structure(list(Name. = structure(c(1L, 2L, 3L, 4L, 5L, 6L, 7L,
8L, 9L, 10L, 11L, 12L, 12L, 13L, 14L, 15L, 16L, 17L, 18L, 19L,
19L), .Label = c("CTV10", "CTV11", "CTV12",
2012 Jun 04
2
Why do I have a column called row.names?
I'm trying to read in a tab separated table with read.delim().
I don't particularly care what the row names are.
My data file looks like this:
start stop Symbol Insert sequence Clone End Pair FISH
203048 67173930 ABC8-43024000D23 TI:993812543
TI:993834585
255176 87869359 ABC8-43034700N15 TI:995224581
TI:995237913
1022033 1060472
2013 Mar 26
3
barplot colors
Dear all,
I have a 2 by 2 matrix and I would like to do a barplot with it. (so 2 bars with each having 2 stacks.). I would like to have one colors per stack, so 4 different colors total.
The problem is that R is only given me 2 colors (the same two for the bottom stack and the same two for the top stack). Any idea how I can do to have 4 colors? (without using ggplot2 preferably)
Here is my
2013 Jun 01
1
error about MCA
Hi,all:
I want to perform multiple correspondance analysis via MCA{FactoMineR}.
The data is in the attachment.
My code:
dat<-read.delim("e:\\mydata.txt",header=T)
MCA(dat,quanti.sup=7,quali.sup=1:6)
Error in `[.data.frame`(tab, , i) : undefined columns selected
My question:
Why does the error happen?
Many thanks.
Best.
-------------- next part --------------
An embedded and
2013 Jan 02
2
rbind: inconsistent behaviour with empty data frames?
The rbind on empty and nonempty data frames behaves inconsistently. I am
not sure if by design.
In the first example, first row is deleted, which may or may not be on
purpose:
df1 <- data.frame()
df2 <- data.frame(foo=c(1, 2), bar=c("a", "b"))
rbind(df1, df2)
foo bar
2 2 b
Now if we continue:
df1 <- data.frame(matrix(0, 0, 2))
names(df1) <- names(df2)
2018 Apr 09
2
convert numeric variables to factor
Hello,
Though Bert's and David's answers are what you should do, note that some
R functions that need factors will coerce their input variables when
necessary.
Have you tried to run the code you haven't posted without coercing to
factor? It might run...
Hope this helps,
Rui Barradas
On 4/9/2018 6:11 PM, David L Carlson wrote:
> Try the help files:
>
> ?factor
>
2017 Nov 15
2
ks.test() with 2 samples vs. 1 sample an distr. function
Dear all,
I have a question concerning the ks.test() function. I tryed to calculate the example given on the German wikipedia page.
xi <- c(9.41,9.92,11.55,11.6,11.73,12,12.06,13.3)
I get the right results when I calculate: ks.test(xi,pnorm,11,1)
Now the question: shouldn't I obtain the same or a very similar result if I commpare the sample and a calculated sample from the distribution?
2012 Jul 25
4
Simple question on finding duplicates
I'm trying to find duplicate values in a column of a data frame. For
example, dataframe (a) below has two 3's. I would like to mark each value of
each row as either not being a duplicate of the one before (0), or as a
duplicate (1) - for example, as in dataframe (b). In SPSS, I would simply
compare each value to it's "lagged" value, but I can't figure out
2012 Dec 06
1
tool for cluster analysis
I have Windows XP Professional Version 2002 and the R-Version 2.1.1.
I did cluster analysis with the cluster package and the agnes (method =
?ward?).
The results are satisfactory.
But the dendrogram of agnes is confused to work with the results.
Is there a tool, I can get a clear arrangement of the results for the
cluster analysis.
For example a matrix with different numbers for each group.
2018 May 02
3
Converting a list to a data frame
Or add the type column first and then rbind:
x <- list(A=data.frame(x=1:2, y=3:4),B=data.frame(x=5:6,y=7:8))
x2 <- do.call(rbind, lapply(names(x), function(z)
data.frame(type=z, dat[[z]])))
----------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77843-4352
-----Original Message-----
From: R-help
2013 Jan 03
4
Index out SNP position
Dear R experts,
I have 2 matix: A& B. I am trying to index B against A - (1) find out B rows that fall between the col 1 and 2 of A& put them into a new vector SNP.I made code as below, but I cannot think of a right way to do it. Could anyone help me with the code? Thanks,Jiang----
A <-
2011 Aug 28
4
How do I get a weighted frequency table?
? stato filtrato un testo allegato il cui set di caratteri non era
indicato...
Nome: non disponibile
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20110828/d35f51a1/attachment.pl>
2012 Aug 17
3
Apply a function according to factor levels.
Dear all,
I have a question on applying a function to the data according to factor
levels.
For example, for the data below, what is the best way to apply a function
to
"values" according to different levels of "samples" (1,2,3,4,5)?
values ind sample
1 0.03325 1 1
2 0.03305 1 1
3 0.03185 1 1
4 0.03515 1 1
5 0.03375 1 1
6 0.01180
2018 Apr 09
5
convert numeric variables to factor
Dear Sir,
I have xlsx data set which I have imported to R studio. Now some of the variables are defined as numeric but I want define them as factor variable so that I run classification algorithm in R.
Please to covert the variables.
Thanks and Regards
Abu Afzal
PhD Eco
JNU
India
2012 Jul 25
8
On Reproducible Code
We often refer requesters to the Posting Guide and chide them for not
reading it. Recently I had occasion to re-read the Posting Guide which is
for all R lists not just R-help. The word "reproducible" does not appear
anywhere in the guide. The closest it comes is the following suggestion:
"Sometimes it helps to provide a small example that someone can actually
run."
2012 Jul 21
2
combined EM dataset for missing data?
Hi list,
I am wondering if there is a way to use EM algorithm to handle missing data and get a completed data set in R?
I usually do it in SPSS because EM in SPSS kind of "fill in" the estimated value for the missing data, and then the completed dataset can be saved and used for further analysis. But I have not found a way to get the a completed data set like this in R or SAS. With
2018 Apr 09
0
convert numeric variables to factor
Try the help files:
?factor
----------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77843-4352
-----Original Message-----
From: R-help <r-help-bounces at r-project.org> On Behalf Of Saif Tauheed
Sent: Monday, April 9, 2018 11:29 AM
To: r-help at r-project.org
Subject: Re: [R] convert numeric variables to factor
Dear