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Farrel
Pittsburgh, PA
Age: 48
Not a programmer but not afraid to use simple programming / macroing such as manipulate and analyze data in R or write 3-10 line autohotkey commands.
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Top Questions
21
votes
Appending rows to a dataframe - the factor problem
r
asked Oct 27 '09 at 18:28
stackoverflow.com
16
votes
What does .SD stand for in data.table in R
r
data.table
asked Dec 14 '11 at 16:59
stackoverflow.com
15
votes
How do I prevent exposure of my password when using RGoogleDocs?
r
passwords
google-docs
rstudio
asked May 23 '11 at 18:57
stackoverflow.com
13
votes
How do I do a negative / nomatch / inverse search in data.table?
r
select
data.table
asked Sep 7 '12 at 13:28
stackoverflow.com
10
votes
How do I get the slopes of an interpolation at regular time points on a cumulative sum plot?
r
interpolation
spline
asked Dec 7 '11 at 0:12
stackoverflow.com
10
votes
Sample size calculation for univariate logistic regression
logistic
sample-size
asked Sep 23 '10 at 0:12
stats.stackexchange.com
10
votes
“Bring” vs. “take” in American English
american-english
dialects
asked Sep 16 '10 at 21:31
english.stackexchange.com
9
votes
How do I increase the size of the points and the text with just one command in ggplot2?
r
ggplot2
fontsize
asked Sep 2 '11 at 21:28
stackoverflow.com
9
votes
Why does median trip up data.table (integer versus double)?
r
integer
double
data.table
median
asked Aug 25 '12 at 20:23
stackoverflow.com
8
votes
Select NA in a data.table in R
r
select
data.table
missing-data
na
asked Sep 28 '12 at 19:27
stackoverflow.com
1
2
next
Top Answers
34
What is the most useful R trick?
stackoverflow.com
6
Factors in R: more than an annoyance?
stackoverflow.com
5
In R do you use attach() or call variables by name or slicing?
stackoverflow.com
5
Case-insensitive search of a list in R
stackoverflow.com
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