大约有 40,000 项符合查询结果（耗时：0.0502秒） [XML]
Efficient way to apply multiple filters to pandas DataFrame or Series
...ines, which are discouraged by pep8.
Using the .query method forces to use strings, which is powerful but unpythonic and not very dynamic.
Once each of the filters is in place, one approach is
import numpy as np
import functools
def conjunction(*conditions):
return functools.reduce(np.logical_an...
Returning http status code from Web Api controller
...e NotModified response.
public HttpResponseMessage GetComputingDevice(string id)
{
ComputingDevice computingDevice =
_db.Devices.OfType<ComputingDevice>()
.SingleOrDefault(c => c.AssetId == id);
if (computingDevice == null)
{
...
How do I load an org.w3c.dom.Document from XML in a string?
I have a complete XML document in a string and would like a Document object. Google turns up all sorts of garbage. What is the simplest solution? (In Java 1.5)
...
How to detect if app is being built for device or simulator in Swift
...R_DEVICE_NAME"] != nil;
} else {
return [[self model] isEqualToString:@"iPhone Simulator"];
}
}
@end
share
|
improve this answer
|
follow
|
...
Calculate the date yesterday in JavaScript
... Though I do like Date.now() so maybe I'll try that instead. It'll save an extra date.
– coblr
Aug 18 '15 at 18:18
...
What's the difference between KeyDown and KeyPress in .NET?
...ctical difference between KeyDown and KeyPress is that KeyPress relays the character resulting from a keypress, and is only called if there is one.
In other words, if you press A on your keyboard, you'll get this sequence of events:
KeyDown: KeyCode=Keys.A, KeyData=Keys.A, Modifiers=Keys.None
Key...
How do I deep copy a DateTime object?
...now. I'd like to create two separate datetimes, one which is parsed from a string and one with three years added to it. Currently I've hacked it up like this:
...
urllib2.HTTPError: HTTP Error 403: Forbidden
...t some sites (including Wikipedia) block on common non-browser user agents strings, like the "Python-urllib/x.y" sent by Python's libraries. Even a plain "Mozilla" or "Opera" is usually enough to bypass that. This doesn't apply to the original question, of course, but it's still useful to know.
...
Converting JSON data to Java object
I want to be able to access properties from a JSON string within my Java action method. The string is available by simply saying myJsonString = object.getJson() . Below is an example of what the string can look like:
...
check if variable is dataframe
...ype() and isinstance()?). For example, it will tell you if a variable is a string (either str or unicode), because they derive from basestring)
if isinstance(obj, basestring):
i_am_string(obj)
Specifically for pandas DataFrame objects:
import pandas as pd
isinstance(var, pd.DataFrame)
...