Search Archives
Search tips
from:Name
Search by author name, e.g. from:Duncan Murdoch
"exact phrase"
Match an exact phrase
word1 word2
Match messages containing both words
Date range
Use the date pickers to filter results to a time period
Use the list dropdown to narrow results to a specific mailing list. Combine from: with other terms to filter by author and content.
Hi, I have a data set with a continuous predictor X, a factor A and a continuous dependent variable Y. I am trying to build a linear model of the form: Y = (b0 + b1*X1)*B(A) where B(A...
Hi, I have the following problem which I would appreciate some help on. A variable y is to be modelled as a function of a set of variables Vector(x). The twist is that there is another variable z in...
Hi, I have a dataframe, x of the following form: Date Symbol A B C 20041201 ABC 10 12 15 20041201 DEF 9 5 4 ... 20050101 ABC 5 3 1 20050101 GHM 12 4 2 .... here A, B,C are...
Hi Peter, That did the trick. Thank you very much. Regards, Maneesh >From: Peter Dalgaard <p.dalgaard at biostat.ku.dk> >To: "maneesh deshpande" <dmaneesh at hotmail.com> >CC: ramasamy at cancer.org.uk, r-help at stat.math.ethz...
Hi Adai, I think your solution only works if the rows of the data frame are ordered by "date" and the ordering function is the same used to order the levels of factor(df$date) ? It turns out (as I...
Can't find what you're looking for? Try searching with Google .