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Dean MacGregor's user avatar
Dean MacGregor's user avatar
Dean MacGregor's user avatar
Dean MacGregor
  • Member for 13 years
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Top posts

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question
345
Converting PKCS#12 certificate into PEM using OpenSSL
Feb 28, 2013
question
108
Apply a function to every specified column in a data.table and update by reference
May 30, 2013
answer
32
Python Polars: How to get the row count of a LazyFrame?
Feb 21, 2023
answer
26
Apply a function to 2 columns in Polars
Nov 14, 2022
answer
22
Polars: change a value in a dataframe if a condition is met in another column
Apr 11, 2023
question
19
SQL how to convert row with date range to many rows with each date
May 3, 2013
answer
17
R: lapply function - skipping the current function loop
Jul 21, 2015
question
17
Is there a way to make UDF that gives a description like the native Excel functions have when user clicks the Fx button?
Feb 6, 2013
answer
16
data.table in R - multiple filters using multiple keys - binary search
Jul 11, 2015
answer
15
RPostgreSQL - import dataframe into a table
Nov 10, 2015

Top Meta posts

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How often are "notable question" and "famous question" awarded without also getting "good" and "great" question?

Top network posts

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76
Do the predictions of a Random Forest model have a prediction interval?
36
Why would an immortal make good on his loan?
24
Refused entry into Schengen after Ryanair checked passport. Now the airline wants me to pay a fine. What are my options?
20
How to cut drywall over stud?
19
sql/db questions on stackoverflow or dba