IRTFM

IRTFM has asked 15 questions and find answers to 1292 problems.

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About

IRTFMMT == "I read the fine manual, many times" Retired physician. Longtime R user.

IRTFM questions

Why read.zoo gives index as dates when times are available
How to wrap RHS terms of a formula with a function
How to capture minus sign in scientific notation with regex?
Setting NA in a matrix using another logical matrix
Convert console output of list to a real R list
How to represent polynomials with numeric vectors in R
Why doesn't outer work the way I think it should (in R)?
Why is the terminology of labels and levels in factors so weird?

IRTFM answers

R function-- the default value does not work?
R glm object and prediction using offsets
Use RegEx in R to retrieve string before second occurence of a period ('.')
How to add horizontal line to xy plot in lattice
Convert a key value data frame to a list
Replace matrix/dataframe values found in column i with i-th element of vector
R efficiency challenge: Splitting a long character vector
Y axis out of plotting region with barplot() in R
Object not found after installing and loading package
Using cast() to transform a data.frame