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Given the lat/long coordinates, how can we find out the city/country?
...g/export/dump/
Add each city as a lat/long -> City mapping to a spatial index such as an R-Tree (some DBs also have the functionality)
Use nearest-neighbour search to find the closest city for any given point
Advantages:
Does not depend on an external server to be available
Very fast (easily...
Do you have to restart apache to make re-write rules in the .htaccess take effect?
...ot htaccess.txt see here for guide how to create one.
Try to use Options -Indexes or deny all kind of simple directive to see if it is working or not.
clear browser cache everytime if having rule for redirects or similar if previous redirect is cached it appears as if things are not working.
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Is bool a native C type?
... the standard: http://www.ibm.com/developerworks/linux/library/l-gcc-hacks/index.html
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Conveniently map between enum and int / String
... Using the values() array will only work if all your values are 0 indexed for their id and are declared in order. (I tested this to verify that if you declare FOO(0), BAR(2), BAZ(1); that values[1] == BAR and values[2] == BAZ despite the ids passed in .)
– corsiKa
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python list by value not by reference [duplicate]
...= list(a)
This will work for any sequence, even those that don't support indexers and slices...
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How to convert list of key-value tuples into dictionary?
...or slows your program down, it's perfectly fine to create dicts as helpful indexes into whatever abstract data structure you're implicitly building. The notion of "good practice" is entirely context-dependent; do you need O(1) lookup time for keys? Also you cannot "convert lists to dictionaries" arb...
Is there a Java equivalent or methodology for the typedef keyword in C++?
...ndreas_D: your link, fixed: ibm.com/developerworks/java/library/j-jtp02216/index.html
– Janus Troelsen
Jan 11 '13 at 22:53
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Fastest way to find second (third…) highest/lowest value in vector or column
...Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) : index 4705 outside bounds Any idea what might the issue be? Some details: My x is a numeric vector of length 4706 with some NAs in the data. I tried to get the second highest value in the vector using the exact same code as ...
How do I create a variable number of variables?
...onvenient than dicts with integer keys, because lists support iteration in index order, slicing, append, and other operations that would require awkward key management with a dict.
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How do I UPDATE from a SELECT in SQL Server?
...ect even rows that don't need to be affected, which could (possibly) cause index recalculation or fire triggers that really shouldn't have been fired.
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