大约有 47,000 项符合查询结果（耗时：0.0604秒） [XML]
Convert pandas dataframe to NumPy array
I am interested in knowing how to convert a pandas dataframe into a NumPy array.
15 Answers
...
How to download a file with Node.js (without using third-party libraries)?
...
the callback is confusing me. if I now invoke download(), how would I do it? What would I place as the cb argument? I have the download('someURI', '/some/destination', cb) but don't understand what to put in the cb
– Abdul
...
When to use: Java 8+ interface default method, vs. abstract method
...venience methods, thus constraining the implementor to single inheritance, now you can have a really clean design with just the interface and a minimum of implementation effort forced on the programmer.
The original motivation to introduce default methods to Java 8 was the desire to extend the Coll...
Exporting APK from eclipse (ADT) silently crashes
...
The problem has gone until I have update ADT and Eclipse. I don't know which one solve the issue.
Now it's working smoothly for severeal signed export, with:
ADT Version: 22.2.1.v201309180102-833290
Eclipse Juno Service Release 2 Build id: 20130225-0426
Gentoo Linux running Java 1.7.0...
Difference between numpy.array shape (R, 1) and (R,)
...
1. The meaning of shapes in NumPy
You write, "I know literally it's list of numbers and list of lists where all list contains only a number" but that's a bit of an unhelpful way to think about it.
The best way to think about NumPy arrays is that they consist of two parts, ...
How to persist a property of type List in JPA?
...tring) {
return Arrays.asList(string.split(SPLIT_CHAR));
}
}
Now use it on your Entities like this:
@Convert(converter = StringListConverter.class)
private List<String> yourList;
In the database your list will be stored as foo;bar;foobar and in your Java object you will get a ...
Create an enum with string values
...
TypeScript 2.4
Now has string enums so your code just works:
enum E {
hello = "hello",
world = "world"
};
????
TypeScript 1.8
Since TypeScript 1.8 you can use string literal types to provide a reliable and safe experience for ...
OS X Terminal Colors [closed]
...adhanushGupta Not sure what color scheme that was, it was a while ago. But now I am using the Pure ZSH theme and loving it. github.com/sindresorhus/pure
– Nick Woodhams
Feb 12 '15 at 4:35
...
fetch in git doesn't get all branches
...d the origin remote, and recreated it. That seems to have fixed it. Don't know why.
remove with:
git remote rm origin
and recreate with:
git remote add origin <git uri>
share
|
improve this ...
Apache Spark: The number of cores vs. the number of executors
...son, but we still see a similar drop in performance when we lose threads.
Now for the last bit: why is it the case that we get better performance with more threads, esp. more threads than the number of CPUs?
A good explanation of the difference between parallelism (what we get by dividing up data ...