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Is there a decorator to simply cache function return values?
...mple of an LRU cache for computing Fibonacci numbers:
@lru_cache(maxsize=None)
def fib(n):
if n < 2:
return n
return fib(n-1) + fib(n-2)
>>> print([fib(n) for n in range(16)])
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610]
>>> print(fib.cache_in...
How to add texture to fill colors in ggplot2
...s to fill colors. Is there an official ggplot2 way to do this or does anyone have a hack that they use? By textures I mean things like diagonal bars, reverse diagonal bars, dot patterns, etc that would differentiate fill colors when printed in black and white.
...
Comparing two NumPy arrays for equality, element-wise
...ge behavior in a particular case: if either A or B is empty and the other one contains a single element, then it return True. For some reason, the comparison A==B returns an empty array, for which the all operator returns True.
Another risk is if A and B don't have the same shape and aren't broadca...
How to inflate one view with a layout
...
Though late answer,
but would like to add that one way to get this
LayoutInflater layoutInflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.mylayout, item );
where item is the parent layout ...
PHP convert XML to JSON
...to json in php. If I do a simple convert using simple xml and json_encode none of the attributes in the xml show.
19 Answer...
Diff files present in two different directories
...e only interested to see the files that differ, you may use:
diff -qr dir_one dir_two | sort
Option "q" will only show the files that differ but not the content that differ, and "sort" will arrange the output alphabetically.
...
How to write lists inside a markdown table?
Can one create a list (bullets, numbered or not) inside a markdown table.
6 Answers
6
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How to rename a single column in a data.frame?
...ewname2"
attempts to set the second column's name. Your object only has one column, so the command throws an error. This should be sufficient:
colnames(trSamp) <- "newname2"
share
|
improve...
Understanding the Event Loop
...es of stuff that needs doing and every "tick" of the event loop it selects one, removes it from the queue, and runs it.
A key thing to understand is that node relies on the OS for most of the heavy lifting. So incoming network requests are actually tracked by the OS itself and when node is ready to...
Setting dynamic scope variables in AngularJs - scope.
... to use $parse.
"Converts Angular expression into a function."
If anyone has a better one please add a new answer to the question!
Here is the example:
var the_string = 'life.meaning';
// Get the model
var model = $parse(the_string);
// Assigns a value to it
model.assign($scope, 42);
// A...