talat

talat has asked 13 questions and find answers to 309 problems.

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data scientist

talat questions

How to split a string by dashes outside of square brackets
dplyr group_by and summarize for two df's with same column name
Understanding sunburstR behaviour
Read nested folder and file names as nested list
Alternate geom_text position with hjust
Count combinations of length 2 per id
Add rows to grouped data with dplyr?
Subset observations that differ by at least 30 minutes time
Using dplyr summarise_at with column index
dplyr::group_by_ with character string input of several variable names

talat answers

Changing column names in R by name not by number
Apply function only to certain level of factor?
Distinct rows based on date range
list of unique value from two columns
Select all rows up to and including first occurrence by group in a data frame
The Fastest/Simplest Algorithm/Function to Determine Largest of Three Values
dplyr - conditional expansion of intervals
How to improve performance for huge datasets by substitute a "for-loop" and "if-else" clauses
R - speed up nested loops (vectorization?) with conditioning on differently sized sequences
Combining multiple columns into one