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How to keep one variable constant with other one changing with row in excel
...n dragging. $B1 (B will be kept constant and the 1 will count up) will be different to $B$1 (both B and 1 will remain constant)
– Jonno_FTW
Jan 28 '10 at 17:40
12
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What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
...y starts a new reduce task, when the next key in the sorted input data is different than the previous, to put it simply. Each reduce task takes a list of key-value pairs, but it has to call the reduce() method which takes a key-list(value) input, so it has to group values by key. It's easy to do so,...
How to reference generic classes and methods in xml documentation
...never had to add those, and it has always worked for me. Do you have a specific example where it doesn't work? If so, please post it somewhere (or even provide an answer yourself.)
– Lasse V. Karlsen
Oct 26 '11 at 11:52
...
Why is “Set as Startup” option stored in the suo file and not the sln file?
...
Why should it be a non-user-specific preference?
If I've got a solution with 10 files in, and one developer is primarily testing/using one of those tools, why should that affect what I start up?
I think MS made the right choice on this one. The project I ...
How to count occurrences of a column value efficiently in SQL?
...his should work:
SELECT age, count(age)
FROM Students
GROUP by age
If you need the id as well you could include the above as a sub query like so:
SELECT S.id, S.age, C.cnt
FROM Students S
INNER JOIN (SELECT age, count(age) as cnt
FROM Students
...
Conditional Variable vs Semaphore
...ondition) while waiting for a resource to become available. For instance, if you have a thread (or multiple threads) that can't continue onward until a queue is empty, the busy waiting approach would be to just doing something like:
//pseudocode
while(!queue.empty())
{
sleep(1);
}
The problem...
Accessing class variables from a list comprehension in the class definition
...ble. Names are resolved in
the innermost enclosing function scope. If a class definition
occurs in a chain of nested scopes, the resolution process skips
class definitions.
and in the class compound statement documentation:
The class’s suite is then executed in a new exec...
Extract filename and extension in Bash
...ocus on the last '/' of the path instead of the '.' which should work even if you have unpredictable file extensions:
filename="${fullfile##*/}"
You may want to check the documentation :
On the web at section "3.5.3 Shell Parameter Expansion"
In the bash manpage at section called "Parameter Exp...
How to detect a textbox's content has changed
... = $('#myContent').val();
$('#myContent').keyup(function() {
if ($('#myContent').val() != content) {
content = $('#myContent').val();
alert('Content has been changed');
}
});
});
...
Convert a String representation of a Dictionary to a dictionary?
...is problem though its decoder wants double quotes around keys and values. If you don't mind a replace hack...
import json
s = "{'muffin' : 'lolz', 'foo' : 'kitty'}"
json_acceptable_string = s.replace("'", "\"")
d = json.loads(json_acceptable_string)
# d = {u'muffin': u'lolz', u'foo': u'kitty'}
N...