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How to increment a datetime by one day?
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date = datetime.datetime(2003,8,1,12,4,5)
for i in range(5):
date += datetime.timedelta(days=1)
print(date)
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How to format a number as percentage in R?
One of the things that used to perplex me as a newby to R was how to format a number as a percentage for printing.
10 Answe...
How do I create a copy of an object in PHP?
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For anyone picking this up: a "shallow" copy ($a = clone $b, with no magic __clone() methods in play) is equivalent to looking at each of the properties of object $b in term, and assigning to the same property in a new member...
Should I store entire objects, or pointers to objects in containers?
...ointers into vector can be efficient if used along with a custom allocator for the pointees. The custom allocator has to take care of the cache locality, for example using placement new (see en.wikipedia.org/wiki/Placement_syntax#Custom_allocators).
– amit
Feb ...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
Is there a foreach structure in MATLAB? If so, what happens if the underlying data changes (i.e. if objects are added to the set)?
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Logging uncaught exceptions in Python
...rt sys
>>> def foo(exctype, value, tb):
... print 'My Error Information'
... print 'Type:', exctype
... print 'Value:', value
... print 'Traceback:', tb
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Override sys.excepthook:
>>> sys.excepthook = foo
Commit obvious syntax error (leave out the colon) and ge...
Automating the InvokeRequired code pattern
...Required(this Control control, MethodInvoker action)
{
// See Update 2 for edits Mike de Klerk suggests to insert here.
if (control.InvokeRequired) {
control.Invoke(action);
} else {
action();
}
}
And can be called like this
richEditControl1.InvokeIfRequired(() =&...
Python import csv to list
....csv', newline='') as f:
reader = csv.reader(f)
data = [tuple(row) for row in reader]
print(data)
Output:
[('This is the first line', 'Line1'), ('This is the second line', 'Line2'), ('This is the third line', 'Line3')]
Old Python 2 answer, also using the csv module:
import csv
with ...
Where can I find my .emacs file for Emacs running on Windows?
I tried looking for the .emacs file for my Windows installation for Emacs, but I could not find it. Does it have the same filename under Windows as in Unix?
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Has an event handler already been added?
...ed it needs to be flagged, which the event handler took care of properly before. However now when the objects are deserialized it isn't getting the event handler.
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