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is_file or file_exists in PHP
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answered Apr 27 '09 at 10:00
hbwhbw
14.6k55 gold badges4646 silver badges5656 bronze badges
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How can I use numpy.correlate to do autocorrelation?
...nction, is to itself at a certain time difference. At a time difference of 0, the auto-correlation should be the highest because the signal is identical to itself, so you expected that the first element in the autocorrelation result array would be the greatest. However, the correlation is not starti...
Position geom_text on dodged barplot
..."dodge", which is just a shortcut without any parameter.
In ggplot2_2.0.0 you find several examples in ?geom_text on how to position geom_text on dodged or stacked bars (the code chunk named "# Aligning labels and bars"). The Q&A What is the width argument in position_dodge? provides a more...
How to efficiently build a tree from a flat structure?
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edited May 10 '13 at 13:24
Guido Preite
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How to create a shared library with cmake?
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220
Always specify the minimum required version of cmake
cmake_minimum_required(VERSION 3.9)
You ...
How to stop a JavaScript for loop?
...mData`... */
remIndex = -1; // Set a default if we don't find it
for (i = 0; i < remSize.length; i++) {
// I'm looking for the index i, when the condition is true
if (remSize[i].size === remData.size) {
remIndex = i;
break; // <=== breaks out of the l...
What does enumerate() mean?
...gt; for count, elem in enumerate(elements):
... print count, elem
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0 foo
1 bar
2 baz
By default, enumerate() starts counting at 0 but if you give it a second integer argument, it'll start from that number instead:
>>> for count, elem in enumerate(elements, 42):
... print coun...
How can I detect whether an iframe is loaded?
... src:'https://heera.it',
style:'display:none;width:320px;height:400px',
load:function(){
$(this).show();
alert('iframe loaded !');
}
});
$('body').append(ifr);
});
});
<script src="https...
Is python's sorted() function guaranteed to be stable?
... the same algorithm as the sort method. I do realize that the docs aren't 100% clear about this identity; doc patches are always happily accepted!
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How to optimize for-comprehensions and loops in Scala?
... positive number that is evenly divisible by all of the numbers from 1 to 20?"
8 Answers
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