Hello, I have two data frames. One is my dependent variable and the other is my independent variable. For each row I'd like to split the independent variable into fractiles (25 or more) and calculate the average value of the dependent variable. Then I would like to plot the average of the averages for each row for each fractile. If possible, I'd like to have the option to 1) define the fractiles independently for each row, and 2) define the fractiles based off the independent variable data frame as a whole at the start and keep it fixed.
Anyway, is there a pacakge/function in R that does something like this so I don't have to reinvent the wheel? If not, any help on how to do this efficiently in R would be great. Here is a super simple example using 3 fractiles: independent data frame: item1 item2 item3 1 18 15 16 2 12 12 17 3 20 13 18 dependent data frame: item1 item2 item3 1 3 1 6 2 2 2 7 3 1 3 8 fractiles by row by item: (done with independent data frame, redefining fractiles each row) fractiles: 1 2 3 row 1 item2 item3 item1 (because 15 < 16 < 18) row 2 item1,item2 [none] item3 (because 12 < 17 ... or however ties are handled is fine) row 3 item2 item3 item1 (because 13 < 18 < 20) Note: in the above fractiles there would almost always be more than one item in each fractile if this example wasn't so simple... dependent variable averages by row by fractile: fractiles: 1 2 3 row 1 1 6 3 row 2 2 [none] 7 row 3 3 8 1 Note: obviously this example is so simple there aren't actual averages because there aren't enough items for each fractile, but I hope you get the point. So then the averages of the fractiles would be: fractiles: 1 2 3 dependent data avg: 2 7 3.67 Then I would like to plot a histogram of the fractile averages directly above. Thanks! [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.