大约有 40,000 项符合查询结果（耗时：0.0691秒） [XML]
Converting a Pandas GroupBy output from Series to DataFrame
...1.index
Out[20]:
MultiIndex([('Alice', 'Seattle'), ('Bob', 'Seattle'), ('Mallory', 'Portland'),
('Mallory', 'Seattle')], dtype=object)
Perhaps you want something like this?
In [21]: g1.add_suffix('_Count').reset_index()
Out[21]:
Name City City_Count Name_Count
0 Alice S...
Using the star sign in grep
...will match a string that contains abc followed by def with something optionally in between.
Update based on a comment:
* in a regular expression is not exactly the same as * in the console. In the console, * is part of a glob construct, and just acts as a wildcard (for instance ls *.log will list ...
How to check “hasRole” in Java Code with Spring Security?
...as a web app you could just declare HttpServletRequest as a parameter and call isUserInRole
– David Bradley
Sep 9 '18 at 3:34
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Practical uses of git reset --soft?
...
git reset is all about moving HEAD, and generally the branch ref.
Question: what about the working tree and index?
When employed with --soft, moves HEAD, most often updating the branch ref, and only the HEAD.
This differ from commit --ame...
Get an object properties list in Objective-C
...turn nil;
}
NSMutableDictionary *results = [[[NSMutableDictionary alloc] init] autorelease];
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList(klass, &outCount);
for (i = 0; i < outCount; i++) {
objc_property_t property = properties[i...
How do I show a marker in Maps launched by geo URI Intent?
...
The accepted answer is correct, except when your label has an ampersand (&) in it.
Looking at A Uniform Resource Identifier for Geographic Locations ('geo' URI):
Section 5.1 states:
if the final URI is to include a 'query' component, add the
...
Set cURL to use local virtual hosts
...
Actually, curl has an option explicitly for this: --resolve
Instead of curl -H 'Host: yada.com' http://127.0.0.1/something
use curl --resolve 'yada.com:80:127.0.0.1' http://yada.com/something
What's the difference, you ask?
A...
Adb Devices can't find my phone [closed]
...e so that I can install my Android apps via usb to the phone. I am using osx 10.6.7.
6 Answers
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Function to clear the console in R and RStudio
...ng function
clc <- function() cat(rep("\n", 50))
which you can then call as clc().
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How to prevent custom views from losing state across screen orientation changes
...ublic Parcelable onSaveInstanceState() {
//begin boilerplate code that allows parent classes to save state
Parcelable superState = super.onSaveInstanceState();
SavedState ss = new SavedState(superState);
//end
ss.stateToSave = this.stateToSave;
return ss;
}
@Override
...