大约有 44,000 项符合查询结果（耗时：0.0148秒） [XML]
Mix Razor and Javascript code
...t;text>:
<script type="text/javascript">
var data = [];
@foreach (var r in Model.rows)
{
<text>
data.push([ @r.UnixTime * 1000, @r.Value ]);
</text>
}
</script>
...
Match everything except for specified strings
...ke sure that the line does not contain red, green or blue anywhere in it. For that, anchor the regular expression with ^ and include .* in the negative lookahead:
^(?!.*(red|green|blue))
Also, suppose that you want lines containing the word "engine" but without any of those colors:
^(?!.*(red|g...
Storing sex (gender) in database
I want to store a user's gender in a database with as little (size/performance) cost as possible.
8 Answers
...
Convert columns to string in Pandas
...'] = total_rows['ColumnID'].astype(str)
However, perhaps you are looking for the to_json function, which will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"}...
How does python numpy.where() work?
..., True], dtype=bool)`
This is done by overloading the "__gt__" method. For instance:
>>> class demo(object):
def __gt__(self, item):
print item
>>> a = demo()
>>> a > 4
4
As you can see, "a > 4" was valid code.
You can get a full list and docume...
How to obtain a Thread id in Python?
...writeLog(message) , that writes out a timestamp followed by the message. Unfortunately, the resultant log file gives no indication of which thread is generating which message.
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Calculating Pearson correlation and significance in Python
I am looking for a function that takes as input two lists, and returns the Pearson correlation , and the significance of the correlation.
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Get first n characters of a string
...
//The simple version for 10 Characters from the beginning of the string
$string = substr($string,0,10).'...';
Update:
Based on suggestion for checking length (and also ensuring similar lengths on trimmed and untrimmed strings):
$string = (str...
In-place type conversion of a NumPy array
...
Note for those (like me) that want conversion between dtype of different byte-size (e.g. 32 to 16 bits): This method fails because y.size <> x.size. Logical once you think about it :-(
– Juh_
...
Fastest sort of fixed length 6 int array
...
For any optimization, it's always best to test, test, test. I would try at least sorting networks and insertion sort. If I were betting, I'd put my money on insertion sort based on past experience.
Do you know anything abo...