Displaying 20 results from an estimated 5000 matches similar to: "Lists and data frames (PR#8143)"
2023 Mar 02
1
transform.data.frame() ignores unnamed arguments when no named argument is provided
Thanks and good point about unspecified behavior. The way it behaves now
(when it doesn't ignore) is more consistent with data.frame() though so I
prefer that to a "warn and ignore" behaviour:
data.frame(a = 1, b = 2, 3)
#> a b X3
#> 1 1 2 3
data.frame(a = 1, 2, 3)
#> a X2 X3
#> 1 1 2 3
(and in general warnings make for unpleasant debugging so I prefer
2010 Dec 17
4
How to arrange the data
Dear R helpers
I have one data as given below.
date value1 value2 value3
30-Nov-2010 100 40 61
25-Nov-2010 108 31 88
14-Sep-2010 11 180 56
I want the following output
date name amount
30-Nov-2010 value1
2012 Oct 15
1
How to read XML in UTF-8 format?
How to read xml in UTF-8 format. I have one XML file but i want to read it
in UTF-8 format. How this is possible?
<barplot>
<cd>
<name>?</name>
<value1>3</value1>
<value2>2.9</value2>
</cd>
<cd>
<name>?</name>
2008 May 02
2
Accesing data frame members from within functions
I am writing a simple R program to execute a t-test repeatedly on data
contained in a data frame. My data looks like this:
Category Value1 Value2
1 .5 .8
1 .3 .9
. . . . . . . . .
2
2012 Nov 28
4
remove NA or 0 values
Dear R users,
I want to remove zero's or NA values after this model.
year value1 value2
1854 0 12
1855 0 13
1866 12 16
1877 11 24
year value1 value2
1 12 12
2 11 13
3 16
4 24
Thank you!
--
---
Catalin-Constantin ROIBU
Forestry engineer, PhD
Forestry Faculty of Suceava
Str. Universitatii no. 13, Suceava, 720229, Romania
office phone +4 0230 52 29 78, ext. 531
mobile phone +4 0745 53
2006 Dec 05
5
if(){} else{}
Dear R-community,
my data set looks like 'mat' below.
Plant<-c(NA,1,1,1,NA,NA,NA,NA,NA,1);
Value1<-rnorm(1:10);
Value2<-rnorm(1:10);
mat<-cbind(Plant,Value1,Value2);
I receive data from two different sites.
One site is identified by an interger number, the other site has no data in
column Plant=NA.
My pb:
I'm trying to assign labels "A" or "B" to
2012 Nov 08
3
Beginner help about output in R
Dear R experts,
I am a beginner with R and I have a question regarding the output of a
function.
Basically, I created 2 functions, value1 and value2, that calculate two
values, and I would like to print those two values to an output datafile. I
tryed the following function:
function (x) {write.table(data.frame(value1(x),value2(x)),file=output.txt)}
My problem is that I would like to calculate
2011 Jul 14
2
cbind in aggregate formula - based on an existing object (vector)
Hello!
I am aggregating using a formula in aggregate - of the type:
aggregate(cbind(var1,var2,var3)~factor1+factor2,sum,data=mydata)
However, I actually have an object (vector of my variables to be aggregated):
myvars<-c("var1","var2","var3")
I'd like my aggregate formula (its "cbind" part) to be able to use my
"myvars" object. Is it
2011 Oct 24
1
Creating data frame with residuals of a data frame
Dear experts,
I am trying to create a data frame from the residuals I get after
having applied a linear regression to each column of a data frame, but
I don't know how to create this data frame from the resulting list
since the list has differing numbers of rows.
So for example:
age<- c(5,6,10,14,16,NA,18)
value1<- c(30,70,40,50,NA,NA,NA)
value2<- c(2,4,1,4,4,4,4)
df<-
2013 Feb 11
2
How to plot doubles series with different location using plotCI
Dear list
members,
I would
like to create two series of plotted mean values and error bars, yet with
different locations along the x-axis.
Plotting of
first series using plotCI with the standard arguments goes without any problem.
However I do not succeed to add the second series in the same plot, which
should be horizontally shifted from the first series along the x-axis. The “add=TRUE”
2010 Jun 17
1
big big problem
Dear list,
I'll try to be more clear in explaining my problem. I have a data frame like this called X:
CLUSTER YEAR variable value1 value2
M1 2005 EC01 NA NA
M1 2006 EC01 2 5
M1 2007
2011 May 05
3
Alter a line in a file.
Hi all R users
Ive got a file that contains diffrent settings in the manor of:
setting1="value1"
setting2="value2"
setting3="value3"
setting4="value4"
.
.
.
What I want to do is open the file and change the value of a specific
setting
like wanna change setting4="value4" -> setting4="value5" and then save the
file again.
2007 Nov 19
3
link_to and GET parameters
Hi,
I am trying to generate a link to external site with GET parameters
( in new window).
I tried following code, but it does not produce any parameters.
<%=link_to "Open New Page", "https://www.foo.com/page/", {:popup =>
true}, {:param1 => "value1", :param2 => "value2"}%>
and
<%=link_to "Open New Page",
2007 Feb 24
3
gsub: replacing a.*a if no occurence of b in .*
I am trying to read a number of XML files using xmlTreeParse(). Unfortunately,
some of them are malformed in a way that makes R crash. The problem is that
closing tags are sometimes repeated like this:
<tag>value1</tag><tag>value2</tag>some garbage</tag></tag><tag>value3</tag>
I want to preprocess the contents of the XML file using gsub() before
2010 Mar 03
5
Matching rows in a Data set? I'm Stuck!!
Hi, I'm having (yet another) problem with R.
I have a few data sets that have this sort of format
dataset1
ID DATA
1234 value
2345 value
3456 value
dataset2
ID DATA
1111 value
2345 value
3333 value
What i really want to do is write an R script that says "if the ID of
dataset1 and 2 match (2nd row), print out that whole row into a new
dataset3". No idea how to do that though.
2007 Dec 03
3
Request param type of array
Hello.
I have tested such form:
<form method=''POST''>
<input type=''hidden'' name=''myfield'' value=''value1''>
<input type=''hidden'' name=''myfield'' value=''value2''>
<input type=''submit'' name=''_submit''
2007 Feb 13
3
"should.be_in [values]" and "each_should_satisfy"
Hi!
I just started using RSpec and have some question that I couldn''t find
answers to.
If I have a result that can have two valid values, is there a better way
of writing
the following assertion?
[value1,value2].should_include actual
Is there a more elegant way of performing should_satisfy on a
collection, for
example I currently use something like collection.each {|x|
2012 Mar 01
2
Rscript example
Hi there,
I am trying to find an example how to use Rscript
Let's suppose I want to pass 3 arguments (I don't want [options] and -e
[expressions] as described in help)
*on the command line
myRscript.R -arg1=value1 -arg2=value2 -arg3=value3
*In the script
#! /path/to/Rscript
args = commandArgs(TRUE);
>From what I see args is just a string, do I do things correctly ?
--
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2006 Apr 06
1
reshape question
Hi,
I have a data fram like this:
date column1 column2 column3 value1 value2 value3
1-1 A B C 10 5 2
2-1 A B D 5 2 0
3-1 A B E 17 10 7
How can I reshape it to:
date column1 column2 column3 v x
1-1 A B C value1 10
1-1 A B C value2 5
1-1 A B C value3 2
2-1 A B D value1 5
2-1 A B D value2 2
2-1 A B D value3 0
3-1 A B E value1 17
3-1 A B E value2 10
3-1 A B E value3 7
Thx!
Regards,
Richard
2007 Feb 23
2
bug with boolean query evaluation containing parenthesis and NOT ?
Hi,
The following [simplified] query works well, however a variation which
includes parenthesis seems to fail, in that it returns hits which should
be excluded by the NOT term.
This is surprising because in this simple case, the parenthesis
shouldn''t change the Boolean evaluation ... any pointers?
Working Query: field1:value1 AND NOT field2:value2
Failing Query: field1:value1 AND