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std::next_permutation Implementation Explanation
...y the smallest amount". For example when counting we don't count 1, 2, 3, 10, ... because there are still 4, 5, ... in between and although 10 is larger than 3, there are missing numbers which can be gotten by increasing 3 by a smaller amount. In the example above we see that 1 stays as the first nu...
Prevent row names to be written to file when using write.csv
...
answered Sep 20 '11 at 11:26
NPENPE
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How to use JavaScript variables in jQuery selectors?
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answered May 5 '11 at 2:10
VinsVins
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Count, size, length…too many choices in Ruby?
...static VALUE
rb_ary_count(int argc, VALUE *argv, VALUE ary)
{
long n = 0;
if (argc == 0) {
VALUE *p, *pend;
if (!rb_block_given_p())
return LONG2NUM(RARRAY_LEN(ary));
// etc..
}
}
The code for array.count does a few extra checks but in the end cal...
How to find corresponding log files folder for a web site?
...
201
Ok, I've found this property - it's called "site id" and resides in "Advanced Properties" of th...
Get city name using geolocation
...
204
You would do something like that using Google API.
Please note you must include the google ma...
Difference between float and decimal data type
...I found when I had this doubt.
mysql> create table numbers (a decimal(10,2), b float);
mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***************************
@a := (a/3): 33.33333...
How to determine whether a Pandas Column contains a particular value
...s in the index:
In [11]: s = pd.Series(list('abc'))
In [12]: s
Out[12]:
0 a
1 b
2 c
dtype: object
In [13]: 1 in s
Out[13]: True
In [14]: 'a' in s
Out[14]: False
One option is to see if it's in unique values:
In [21]: s.unique()
Out[21]: array(['a', 'b', 'c'], dtype=object)
In [22]:...
Get week of year in JavaScript like in PHP
...uk/js-date6.htm#YWD. Please test thoroughly, no guarantee provided.
Edit 2017
There was an issue with dates during the period that daylight saving was observed and years where 1 Jan was Friday. Fixed by using all UTC methods. The following returns identical results to Moment.js.
/* For a give...
How to align absolutely positioned element to center?
... you can center an absolutely positioned element.
position:absolute;
left:0;
right:0;
margin-left:auto;
margin-right:auto;
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