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How to filter rows in pandas by regex
...n [10]: df.b.str.contains('^f')
Out[10]:
0 False
1 True
2 True
3 False
Name: b, dtype: bool
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psql: FATAL: Peer authentication failed for user “dev”
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313
Try:
psql -U user_name -h 127.0.0.1 -d db_name
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-h is ...
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PHP UML Generator [closed]
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edited Nov 22 '13 at 17:18
answered Feb 26 '09 at 17:24
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How to express a NOT IN query with ActiveRecord/Rails?
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316
Rails 4+:
Article.where.not(title: ['Rails 3', 'Rails 5'])
Rails 3:
Topic.where('id NOT I...