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Convert column classes in data.table
... You might want to add what names_factors is here. I guess it's taken from stackoverflow.com/a/20808945/1666063 so it's names_factors = c('fac1', 'fac2') in this case - which is column names.But it could also be column numbers for example 1;ncol(dt) which would convert all columns
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Difference between UIViewContentModeScaleAspectFit and UIViewContentModeScaleToFill?
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If you are talking about UIViewContentMode, the following is from the Doc.
UIViewContentModeScaleToFill
Scales the content to fit the size of itself by changing the aspect ratio of the content if necessary.
UIViewContentModeScaleAspectFit
Scales the content to fit the si...
Replace non-ASCII characters with a single space
... representation of your original string I recommend the unidecode module:
from unidecode import unidecode
def remove_non_ascii(text):
return unidecode(unicode(text, encoding = "utf-8"))
Then you can use it in a string:
remove_non_ascii("Ceñía")
Cenia
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Capture keyboardinterrupt in Python without try-except
...(goodbye)
You can also use it as a decorator (as of 2.6; this example is from the docs):
import atexit
@atexit.register
def goodbye():
print "You are now leaving the Python sector."
If you wanted to make it specific to KeyboardInterrupt only, another person's answer to this question is pro...
Difference Between Cohesion and Coupling
..., whilst decoupling ensures that the functional implementation is isolated from the rest of the system.
Decoupling allows you to change the implementation without affecting other parts of your software.
Cohesion ensures that the implementation more specific to functionality and at the same time e...
CSS background image to fit width, height should auto-scale in proportion
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Based on tips from https://developer.mozilla.org/en-US/docs/CSS/background-size I end up with the following recipe that worked for me
body {
overflow-y: hidden ! important;
overflow-x: hidden ! important;
backgroun...
Confused about __str__ on list in Python [duplicate]
Coming from a Java background, I understand that __str__ is something like a Python version of toString (while I do realize that Python is the older language).
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Easily measure elapsed time
..., I use a free function, outside the class. This allows for measuring time from the construction of an object, to the finish of an asynch call.
– utnapistim
May 7 '14 at 8:19
8
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Using PowerShell to write a file in UTF-8 without the BOM
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@xdhmoore WriteAllLines gets the current directory from [System.Environment]::CurrentDirectory. If you open PowerShell and then change your current directory (using cd or Set-Location), then [System.Environment]::CurrentDirectory will not be changed and the file will end up b...
Is it possible to create a “weak reference” in javascript?
... It's typically done in complex web applications to prevent memory leakage from browsers (typically IE, especially older versions) when there is a reference loop between a DOM Node or event handler, and an object associated with it such as a closure. In these cases a full reference-counting scheme m...