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Dean MacGregor's user avatar
Dean MacGregor's user avatar
Dean MacGregor's user avatar
Dean MacGregor
  • Member for 12 years, 6 months
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Top posts
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338
Converting PKCS#12 certificate into PEM using OpenSSL
Feb 28, 2013
108
Apply a function to every specified column in a data.table and update by reference
May 30, 2013
29
Python Polars: How to get the row count of a LazyFrame?
Feb 21, 2023
24
Apply a function to 2 columns in Polars
Nov 14, 2022
20
Polars: change a value in a dataframe if a condition is met in another column
Apr 11, 2023
19
SQL how to convert row with date range to many rows with each date
May 3, 2013
17
R: lapply function - skipping the current function loop
Jul 21, 2015
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
16
data.table in R - multiple filters using multiple keys - binary search
Jul 11, 2015
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?
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75
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
Simple rules for a successful partly remote policy with about 50% office time