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xiaodai
Machine Learning developer
  • Member for 14 years, 6 months
  • Last seen this week
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I love all things data and machine learning.

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Top posts
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223
Combine two data frames by rows (rbind) when they have different sets of columns
Jan 7, 2015
94
How to create a lag variable within each group?
Oct 10, 2014
92
RMarkdown: How to change the font color?
Mar 15, 2015
54
R: In RStudio how do I make knitr output to a different folder to avoid cluttering up my drive?
Oct 3, 2014
47
How do I obtain the machine epsilon in R?
Apr 12, 2010
46
R: How to run some code on load of package?
Nov 26, 2013
41
R: How to make second level indented bullet points using RMarkdown ioslides?
Oct 31, 2014
40
How to delete zero components in a vector in Matlab?
Apr 14, 2010
33
Julia: How to pretty print an array?
Jul 13, 2020
31
Is it possible to read parquet files in chunks?
Nov 29, 2019
Top network posts
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32
In Windows 7, Is there a way to snap a window to a quarter of the screen instead of half?
31
Is pandas now faster than data.table?
15
Difference between "fat chance" and "slim chance"?
14
Does Windows XP support the SSD trim command?
14
How to replicate the Handbrake and DVD43 combination on 64 bit Windows 7?