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How to avoid Python/Pandas creating an index in a saved csv?
...er way do to this is specify pd.read_csv(..., index_col=[0], and avoid the extra "drop" call.
– cs95
May 28 '19 at 4:19
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Create table (structure) from existing table
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This solution is clearer than having the extra condition "1 = 2", I would recommend this
– Pinte Dani
Oct 2 '19 at 5:58
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jQuery: Count number of list elements?
...'ve got a list that is generated from some server side code, before adding extra stuff to it with jQuery I need to figure out how many items are already in it.
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Delete the first three rows of a dataframe in pandas
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drop can even be calculated in-place (without extra assignment). Faster and simpler!
– tim
Jun 13 '14 at 18:24
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When is assembly faster than C?
...Editor's note: more likely the FP latency bottleneck is enough to hide the extra cost of loop. Doing two Kahan summations in parallel for the odd/even elements, and adding those at the end, could maybe speed this up by a factor of 2.)
Whoops, I was running a slightly different version of the code ...
Why are preprocessor macros evil and what are the alternatives?
...can't be debugged.
When you have a macro that translates to a number or a string, the source code will have the macro name, and many debuggers, you can't "see" what the macro translates to. So you don't actually know what is going on.
Replacement: Use enum or const T
For "function-like" macros,...
What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
...tf8_general_ci is fine only for Russian and Bulgarian subset of Cyrillic.
Extra letters used in Belarusian, Macedonian, Serbian, and Ukrainian
are sorted not well.
The cost of utf8_unicode_ci is that it is a little bit
slower than utf8_general_ci. But that’s the price you pay for correctness...
pg_config executable not found
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I need the extra brew link postgresql
– vincentlcy
Mar 10 '16 at 8:56
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Visual Studio window which shows list of methods
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You will find "Options" in the menu under "Extras".
– ohgodnotanotherone
Sep 4 '17 at 8:43
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Difference between array_map, array_walk and array_filter
...onal array. Every element's value changes in place into a more informative string specifying its key, category and value.
<?php
$f = function(&$item,$key,$prefix) {
$item = "$key: $prefix: $item";
};
array_walk($nu, $f,"fruit");
var_dump($nu);
?>
See demo
Note: the callba...