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How can I apply a function to every row/column of a matrix in MATLAB?
...an edit to sum(M, 1). Beginners might think sum can be used this way for arbitrary sized matrices and then get stumped when the matrix one day is 1-by-n.
– Stewie Griffin
Aug 10 '16 at 11:57
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Get local IP address
...ware. The OP did not ask for that, so I think down voting due to that is a bit harsh. If you have VMWare or multiple NICs, some of the other answers already provide clues to that.
– Mrchief
May 31 '16 at 17:32
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Get list of all routes defined in the Flask app
... of url, endpoint tuples
See Display links to new webpages created for a bit more information.
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AngularJS changes URLs to “unsafe:” in extension page
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edited Dec 10 '13 at 14:49
Bob Fanger
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Convert int to ASCII and back in Python
... , node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When a user goes to that URL, I need to reverse the process (obviously).
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Split comma-separated strings in a column into separate rows
...0 rows. To create larger data frames, these 20 rows are simply repeated 1, 10, 100, 1000, 10000, and 100000 times which give problem sizes of up to 2 million rows.
Benchmark results
The benchmark results show that for sufficiently large data frames all data.table methods are faster than any oth...
How can I map True/False to 1/0 in a Pandas DataFrame?
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AMC
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answered Dec 8 '14 at 16:36
UserUser
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What is the difference between “Include Directories” and “Additional Include Directories”
...ptions are saved under this - but this is the property sheet Microsoft.Cpp.Win32.user and only this. If you edit the "VC++ Directories" entry when having the project active or another property sheet, then the change will be persisted in the .vcxprojfile or in the respective .props file and will not ...
How to add spacing between UITableViewCell
... This works great. I had to change the cellForRowAtIndexPath a bit, not the normal array[indexPath.row] but array[indexPath.section]. Otherwise it will show the first item of the array in all the sections.
– Tom Spee
Oct 30 '15 at 10:03
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find() with nil when there are no records
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you can do this a bit hackish, just use the ActiveRecord Query Interface.
this will return nil, instead of raising a Exception
User.where(:id => 10).first
shar...