similar to: Accesing data frame members from within functions

Displaying 20 results from an estimated 2000 matches similar to: "Accesing data frame members from within functions"

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>
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
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
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
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
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 Apr 18
1
using "aggregate" when variable names contain spaces
Hello! my data set has many variables. Unfortuantely, many of those variables contain spaces in their names. I need advice on: how to refer to variable names in the formula for "aggregate". See example below: ### Generating example data set: mydate = rep(seq(as.Date("2008-12-01"), length = 3, by = "month"),4) value1=c(1,10,100,2,20,200,3,30,300,4,40,400)
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 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
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 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 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
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
2008 Sep 28
2
using tapply on a data frame in a function
Hello, I'm trying to use tapply to find group means in a function. It works outside of a function, but I get the error message from the following code: "Error in tapply(index, cluster, mean) : arguments must have same length." Any suggestions? Thanks. eric d <- data.frame(cbind(cluster=1:2, value1=1:10, value2=11:20)) d FindClusterTraits <- function(framename, index){
2011 Oct 21
2
[LLVMdev] Replacing uses within a function
Hi all, I am trying to replace all uses of a value1 *inside of a given function* to use value2. My strategy was to iterate all the basic blocks, again iterating all the instructions in each basic block, and using replaceUsesOfWith(value1, value2) for every instruction. This used to work all right, but now I am finding some problems. There are instructions like this: store i32 0, i32*
2010 Nov 30
1
more flexible "ave"
Hi all, I would like to calculate the percent of the total per group for this data.frame: df <- data.frame(site = c("a", "a", "a", "b", "b", "b"), gr = c("total", "x1", "x2", "x1", "total","x2"), value1 = c(212, 56, 87, 33, 456, 213)) df