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How to check if all list items have the same value and return it, or return an “otherValue” if they
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var val = yyy.First().Value;
return yyy.All(m>x m>=>m>x m>.Value == val) ? val : otherValue;
Cleanest way I can think of. You can make it a one-liner by inlining val, but First() would be evaluated n times, doubling em>x m>ecution time.
To incorporate the "empty set" behavior ...
ValueError: setting an array element with a sequence
... array from a list that isn't shaped like a multi-dimensional array. For em>x m>ample
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([[1,2], [2, [3, 4]]])
will yield this error message, because the shape of the input list isn't a (generalised) "bom>x m>" that can be turned into a multidimensional array...
How do I perform an IF…THEN in an SQL SELECT?
...aultcase>
END AS <newcolumnname>
FROM <table>
The em>x m>tended case:
SELECT CASE WHEN <test> THEN <returnvalue>
WHEN <othertest> THEN <returnthis>
ELSE <returndefaultcase>
END AS <newcolumnname...
rgdal package installation
The issue here is not em>x m>actly how to plot maps through R, as I have found already a pretty nice em>x m>ample here , but rather how to make it work. In fact, I am unable to load library rgdal :
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How to take all but the last element in a sequence using LINQ?
...e;
T item = default(T);
do {
hasRemainingItems = it.MoveNem>x m>t();
if (hasRemainingItems) {
if (!isFirst) yield return item;
item = it.Current;
isFirst = false;
}
} while (hasRemainingItems);
}
static void Main(string[] args) {
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'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
What em>x m>plains the difference in behavior of boolean and bitwise operations on lists vs NumPy arrays?
8 Answers
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Logical m>X m>OR operator in C++?
...sarily do what you might want for non-booleans. And as this is C++, there em>x m>ists a real bool type instead of having to use int for that purpose.
– Greg Hewgill
Oct 20 '09 at 21:19
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Is there an easy way to pickle a python function (or otherwise serialize its code)?
...hich can then be reassembled into a function. ie:
import marshal
def foo(m>x m>): return m>x m>*m>x m>
code_string = marshal.dumps(foo.func_code)
Then in the remote process (after transferring code_string):
import marshal, types
code = marshal.loads(code_string)
func = types.FunctionType(code, globals(), "so...
Getting a better understanding of callback functions in JavaScript
...and passing in a function to another function as a callback and having it em>x m>ecute, but I'm not understanding the best implementation to do that. I'm looking for a very basic em>x m>ample, like this:
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What is tail recursion?
...learn lisp, I've come across the term tail-recursive . What does it mean em>x m>actly?
28 Answers
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