search for: myaggs

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2012 Feb 03
1
incomplete final line found on <name of my sourced function file>
Dear R-ers, I hope there is a really simple solution to my problem. I've written a function that I saved in an .r file. I source this file in my code. For a while it worked fine. But then when I run the line: source("F mylineplot.r") I started getting a warning: In readLines(file) : incomplete final line found on 'F mylineplot.r' I have no idea why - I tried to check and
2008 Oct 02
1
Help with aggregation
Hi All, I seem to be having a few troubles with aggregating data back onto the the dataframe, I want to take the max value of a user, and then apply this max value back against all id's that match (i.e a one to many matching) Can anyone offer any advice? is there a better way of doing this? Dummy data and code are listed below:- dataset is called Mcookie user_id c_we_conversion 1
2011 Oct 05
2
aggregate function with a dataframe for both "x" and "by"
...1=c(1,3,5,7,8,3,5,NA,4,5,7,9), testvar2=c(11,33,55,77,88,33,55,NA,44,55,77,99) ) mybys=data.frame(mbn1=c('red','blue',1,2,NA,'big',1,2,'red',1,NA,12),mbn2=c('wet','dry',99,95,NA,'damp',95,99,'red',99,NA,NA) , stringsAsFactors =F) myaggs <- data.frame(matrix(data=NA, nrow=nrow(mydata), ncol=ncol(mydata) ) ) for(i in 1: ncol(mydata) ) { temp <- aggregate(mydata[i], by = as.list(mybys[i]), FUN=sum, na.rm=T) rownums <- match(mybys[,i],temp[,1]) myaggs[,i] <- temp[rownums,2] } myaggs Finally, how do I convert a...
2004 Aug 16
1
turning off automatic coersion from list to matrix
Hello, I am having trouble understanding how R is coercing between matrices and lists in the following example. I have an aggregate behavior I like: aggregate(a[,"num"],by=list(product=a[,"product"],region=a[,"region"]), sum) Now in reality I have more columns than just product and region, and need to pick different combinations. So I want to abstract this into a