I have a list of hclust objects resulting from slight variations in one variable (for calculating the distance matrix)
I want to filter rows from a data.frame based on a logical condition. Let\'s suppose that I have data frame like
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I have written a very basic package in R. In fact, I followed this tutorial f开发者_运维问答or creating a basic package.
Is there a variant of lag somewhere that keeps NAs in position? I want to compute returns of price data where data could be missing.
After installing RPy2 from http://rpy.sourceforge.net/rpy2.html I\'m trying to use it in Python 2.6 IDLE but I\'m getting this error:
I\'m plotting a group of curves, usi开发者_如何学Cng facet in ggplot2. I\'d like to have a smoother applied to plots where there are enough points to smooth, but not on plots with very few points. In
I have a data set of comic book unit sales by volume (ex. Naruto v10) that I need to reduce to sales by series (so all Naruto volume unit sales would be added together into a single observation).I hav
I have a dataframe (14.5开发者_StackOverflow中文版K rows by 15 columns) containing billing data from 2001 to 2007.
I\'m working in an R script that uses a long SQL string, and I would like to keep the query relatively free of other markup so as to allow copying and pasting between editors and applications. I\'d al
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