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Top Questions
32
votes
pandas combine two columns with null values
python
pandas
dataframe
nonetype
asked Jan 3 '17 at 17:56
stackoverflow.com
15
votes
Make list of objects in global environment matching certain string pattern
r
regex
list
asked Nov 4 '14 at 14:58
stackoverflow.com
8
votes
change position of word within a string in r
regex
r
string
asked May 5 '15 at 14:36
stackoverflow.com
8
votes
Exact same text strings not matching
python
string
pandas
dataframe
character-encoding
asked Jul 1 '17 at 20:30
stackoverflow.com
7
votes
Model with non-linear transformation
r
modeling
data-transformation
nonlinear-regression
fitting
asked Jul 28 '14 at 22:03
stats.stackexchange.com
6
votes
Speeding up correlation matrix calculation in R
r
correlation
asked Mar 21 '16 at 16:06
stackoverflow.com
6
votes
Why does subsetting a column from a data frame vs. a tibble give different results
r
dataframe
dplyr
subset
asked Oct 7 '16 at 13:44
stackoverflow.com
5
votes
Merging a data frame and a lookup table in r, retaining all records from data frame
r
merge
data.frame
vlookup
asked Jul 31 '14 at 22:27
stackoverflow.com
Top Answers
9
Dumb rbind for data.frames of different length
stackoverflow.com
9
How do I make paneer firm and chewy like in the restaurant?
cooking.stackexchange.com
9
dplyr: how to (concisely) use a mutate conditional on different cases?
stackoverflow.com
8
Screening (multi)collinearity in a regression model
stackoverflow.com
7
dplyr, lubridate : how to aggregate a dataframe by week?
stackoverflow.com
6
Fresh vs Canned tomatoes in Indian cooking
cooking.stackexchange.com
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