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Extracting specific columns in numpy array
This is an easy question but say I have an MxN matrix. All I want to do is extract specific columns and store them in another numpy array but I get invalid syntax errors.
Here is the code:
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Convert a String representation of a Dictionary to a dictionary?
... can I convert the str representation of a dict , such as the following string, into a dict ?
9 Answers
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Loader lock error
...n was thrown.
I overcame this error by creating the object-instance in an extra thread:
ThreadStart threadRef = new ThreadStart(delegate { m_ComObject = Activator.CreateInstance(Type.GetTypeFromProgID("Fancy.McDancy")); });
Thread myThread = new Thread(threadRef);
myThread.Start();
myThread.Join(...
Which terminal command to get just IP address and nothing else?
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Same, this does the job perfectly with no extra tools and no need to call fifteen binaries in a row to cleanup the output. Thanks !
– Ulrar
Sep 12 '18 at 7:18
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
... even a DISTINCT+ORDER BY might still be faster than a GROUP BY due to the extra hints for the optimizer as explained by SquareCog.
– rustyx
Jan 25 '15 at 15:03
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When to use std::begin and std::end instead of container specific versions [duplicate]
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Not inertia only, but also autocomplete and few extra letters for std:: if you (or your style guide) avoid ADL. From my practice, places where free begin/end are truly needed are exceedingly rare.
– user2665887
Oct 6 '14 at 7:58
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Django - how to create a file and save it to a model's FileField?
...le(f))
# Using ContentFile
self.license_file.save(new_name, ContentFile('A string with the file content'))
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Format number as fixed width, with leading zeros [duplicate]
...to use sprintf. This uses C style formatting codes embedded in a character string to indicate the format of any other arguments passed to it. For example, the formatting code %3d means format a number as integer of width 3:
a <- seq(1,101,25)
sprintf("name_%03d", a)
[1] "name_001" "name_026" "n...
Android file chooser [closed]
... Uri uri = data.getData();
Log.d(TAG, "File Uri: " + uri.toString());
// Get the path
String path = FileUtils.getPath(this, uri);
Log.d(TAG, "File Path: " + path);
// Get the file instance
// File file = new File(path);
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jquery variable syntax [duplicate]
...ction between regular vars and jQuery objects.
example:
var self = 'some string';
var $self = 'another string';
These are declared as two different variables. It's like putting underscore before private variables.
A somewhat popular pattern is:
var foo = 'some string';
var $foo = $('.foo');
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