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How to define two fields “unique” as couple
...angoproject.com/en/1.4/ref/models/options/… So your constraint should be more explicitly written as: unique_together = (('journal_id', 'volume_number',),).
– Tomasz Gandor
Jan 18 '14 at 12:52
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How to send an email using PHP?
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CSV in Python adding an extra carriage return, on Windows
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Heroku free account limited?
... Actually the bandwidth is 2TB/month (soft): policy.heroku.com/aup More: Request Length: 30 seconds - Hard, Dyno RAM usage: 512MB - Hard
– K Z
Apr 15 '12 at 5:10
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Example for boost shared_mutex (multiple reads/one write)?
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Why does integer division in C# return an integer and not a float?
...ster, so if you only need a whole number result, one would want to use the more efficient algorithm.
Secondly, there are a number of algorithms that use integer division, and if the result of division was always a floating point number you would be forced to round the result every time. One exampl...
Store password in TortoiseHg
...ld never store plaintext passwords in ANY file...!! The other option (with more votes) using mercurial_keyring is the only right thing to do!
– Lars Corneliussen
Oct 27 '11 at 19:04
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How do I fetch only one branch of a remote Git repository?
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mongo - couldn't connect to server 127.0.0.1:27017
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?
... Is an even 50/50 split advisable? Or are there clear advantages of having more training data relative to validation data (or vice versa)? Or is this choice pretty much application dependent?
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