Displaying 20 results from an estimated 2000 matches similar to: "simple if statement"
2006 Mar 08
5
data import problem
Dear All,
I'm trying to read a text data file that contains several records separated by a blank line. Each record starts with a row that contains it's ID and the number of rows for the records (two columns), then the data table itself, e.g.
123 5
89.1791 1.1024
90.5735 1.1024
92.5666 1.1024
95.0725 1.1024
101.2070 1.1024
321 3
60.1601 1.1024
64.8023 1.1024
70.0593
2006 Oct 17
1
Convert Contingency Table to Flat File
Hello All,
Is there any R function out there to turn a multi-way contingency table back to a flat file table of individual rows and attribute columns.?
Thanks!
marco
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2006 Mar 15
3
click on graph and select data points?
Hi all,
I am doing some clustering and the clustered results are presented in a
"pairs" plot showing 4 clusters...
I made the data points belong to 4 different clusters displaying different
colors.
Now I want to select the best clustered class, how can I click on the data
point, and the program returns the index of that cluster(its class number,
or color number)?
Also, if I would
2006 Apr 16
1
string vector indices
Hi,
I have a string vector, say,
x <- "a", "aab"
and anther string vector, say,
y <- "a", "aa", "aab", "aabc".
Is there any R function to get the indices of y for the elements of x, that
is, foo(x, y) will give me the index vector c(1, 3)?
I know i can combine apply() and grep("^aab$", y) to do it. But is there any
2006 Jul 21
1
Merge two dataframes of different column length and row length by two columns at a time
Hello,
I have two dataframes of the following structures:
str(a)
`data.frame': 1354896 obs. of 14 variables:
$ V1 : int 0 1 2 3 4 5 6 7 8 9 ...
$ V2 : int 0 0 0 0 0 0 0 0 0 0 ...
$ V3 : int 74 12305 103 12337 46 57 12446 90 12097 79 ...
$ V4 : num 11.8 1529.2 17.8 1579.4 6.7 ...
$ V5 : int 88 11040 104 11557 56 58 11040 74 10991 81 ...
$ V6 : num 15.5 1921.3 20.3
2006 Nov 12
1
How to increase decimal places
Hello everyone,
does anybody know how to increase the decimal places that R uses to calculate something.
I think that in default R uses 6 decimal places but I need 12.
Thank you very much!
Best regards,
Maja!
--
2006 Mar 14
2
name of the graphics output
Hello.
In the file list.txt, I have the name of n files in data frame format. I
want to make an image for each file and save the images in pdf format.
To do this, I do the following:
llista = scan(file="list.txt",what=list(nom=""))
for (file.name in llista[[1]]){
aux=read.table(file=file.name)
aux=as.matrix(aux)
pdf()
image(aux)
2006 Jun 20
3
how to put the results of loop into a dataframe
Dear friends,
suppose i want to do the following caulation for 100 times, how to put the
results of x , y and z into the same dataframe/dataset?
x<-runif(1)
y<-x+1
z<-x+y
thanks in advance!
--
Kind Regards,
Zhi Jie,Zhang ,PHD
Department of Epidemiology
School of Public Health
Fudan University
Tel:86-21-54237149
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2006 Oct 26
3
Read.csv
Are there ways to load a csv file without row.names by read.csv? Thanks.
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2006 Jun 17
2
managing data
Dear mailing list, may some one be kind to help me solve following problem.
I am trying to write a code that will combine two tables "x" and "y". The
first columns of both tables are unique identification for the rows. The
first column of table "X" is a sub set of the first column of "Y". I need to
find the matching rows in both tables by looking on their
2007 Jun 02
4
Datapoints underneath datapoints Problem
Hi there.
I have the following graph:
http://www.nabble.com/file/p10928148/map.jpg
However, some datapoints occur at the same place as other datapoints and are
so layered on top of each other. I would like to know if there is any
possible way in which I could view those datapoints that are layered on top
of each other ...maybe by rotating using latitude to show the datapoints
underneath (but
2006 Oct 11
4
Help on direction of axis in R needed
Hi!
I'd like to plot things with axes going from the
highest to the lowest value, so that e.g. high values
on the xaxis are plotted to the left and low values to
the right.
Could anyone tell me how this is done? I couldn't find
anything in the documentation.
Thanks a lot!
Silli
2006 Apr 27
3
relative frequency plot
Hi All,
I want to use "hist" to get the relative frequency plot. But the range of
ylab is greater than 1,which I think it should be less than 1 since it
stands for the probability.
Here is my code:
x<-c(1,1,1,0,0,1,1,5,1,1,0,1,1,0,1,0,1,1,0,0,1,1,1,1,1,1,1,1,1,4,1,0,2,1,1,1
,1,1,0,0,1,0,1,1,1,1,1,1,1,1,1)
2008 Aug 05
4
[LLVMdev] Contributing to LLVM
Hello all,
I'm a rising sophomore CS/Engineering student in the US and I'm
interested in programming languages/ compilers.I think the LLVM would
be a great project for me to contribute to, both to learn something
and help the project. Unfortunately, I don't know much about
compilers, much less anything which would allow me to make a
significant contribution. I've started reading
2006 Nov 30
3
newbie: new_data_frame <- selected set of rows
Hello,
this is probably trivial but I failed to find this
particular snippet of code.
What I got:
my_dataframe (contains say a 40k rows and 4 columns)
distances (vector with euclidean distances between a
query vector and each of the rows of my_dataframe)
What I do:
after scaling data my_dataframe I calculate distances.
order them then extract top five hits
my_dataframe <-
2006 Oct 21
4
one is not one
Folks,
I have got a strange behaviour when testing this:
sum(x) != 1
let us set
x<-c(70,134,1,5,0)
and transform it in a vector of probabilities
x<-x/sum(x)
One expect sum(x) should be equal to 1, which is apparently the case
> sum(x)
[1] 1
However, when I try to test it I get:
> if(sum(x) !=1) print("lost") else ("OK")
[1] "lost"
Which means
2006 Mar 29
3
load file RData which store in zip file
Dear R users,
My situation:
(1) I have limited workspace for my work harddisk (about 10 GiB).
(2) I have a lot of data files in R workspace (*.RData) which most of
them > 200 MiB. For some reason I zip some of them, for instance
"filename.RData (250 MiB)" to "filename.zip (3MiB)". In this work I
have a lot of more space of my harddisk.
Normally, If I want to use
2006 Jul 18
2
how can I delete rows?
Hello, I am very new in R so I am so sorry for this question.
I have the Barro-Lee data set which contains 98 countries and I want to run the regressions only for the Latin America countries, so what do you recomend? How can I delete all the other countries or how can I select the countries of Lat. Am. thank you
this is the list of countries
SHCODE COUNTRY NAME WBCTRY
2008 Aug 05
0
[LLVMdev] Contributing to LLVM
On Aug 4, 2008, at 10:29 PM, Shrutarshi Basu wrote:
> Hello all,
> I'm a rising sophomore CS/Engineering student in the US and I'm
> interested in programming languages/ compilers.I think the LLVM would
> be a great project for me to contribute to, both to learn something
> and help the project. Unfortunately, I don't know much about
> compilers, much less anything
2006 Jun 29
4
Extracting R plots from MS Word
Hi,
I am revising a paper that I am a co-author of. The figures are plots
generated from R but at the moment I do not have the R code that generates
them.
As this is time critical I would like to slightly abuse the list by asking
whether anyone knows how to extract from MS Word into a stand-alone
graphics file a plot that was pasted into Word from R (probably as a
Windows Metafile, but possibly