大约有 48,000 项符合查询结果（耗时：0.0508秒） [XML]
Scatterplot with too many points
...
How can i change the colours? I am now getting blue to black scale, whereas i would like to get reg, green blue scale.
– user1007742
Aug 12 '14 at 13:44
...
Label encoding across multiple columns in scikit-learn
...commended way is
OneHotEncoder().fit_transform(df)
as the OneHotEncoder now supports string input.
Applying OneHotEncoder only to certain columns is possible with the ColumnTransformer.
EDIT:
Since this answer is over a year ago, and generated many upvotes (including a bounty), I should probabl...
How can I create a self-signed cert for localhost?
...row next to "Trust" and choose to "Always trust". Chrome and Safari should now trust this cert. For example, if you want to use this cert with node.js:
var options = {
key: fs.readFileSync('/path/to/localhost.key').toString(),
cert: fs.readFileSync('/path/to/localhost.crt').toString(),
...
Really weird eclipse keyboard behavior/bug?
I am using Helios on Mac Snow Leopard. I don't know why but all of a sudden my arrow keys and delete button start not working only on Eclipse (so Eclipse ignores them) but the rest of the buttons works just fine. There is no exception/error thrown anywhere on the screen. I don't exactly know how to ...
Can you use reflection to find the name of the currently executing method?
...
As far as I know, no. Because in runtime, the MSIL is not available anymore from the execution pointer (it's JITted). You can still use reflection if you know the name of the method. The point is, when inlined, the currently executing met...
In c# what does 'where T : class' mean?
...s literally means that T has to be a class. It can be any reference type. Now whenever any code calls your DoThis<T>() method it must provide a class to replace T. For example if I were to call your DoThis<T>() method then I will have to call it like following:
DoThis<MyClass>();...
How do you change the server header returned by nginx?
...eping this string as is. But, for
security you may not want people to
know what you are running and you can
change this in the source code. Edit
the source file
src/http/ngx_http_header_filter_module.c
at look at lines 48 and 49. You can
change the String to anything you
want.
## v...
Advantage of switch over if-else statement
...Obviously this just moves the problem to a different area of the code, but now you have the opportunity to reuse this test. You also have more options for how to solve it. You could use std::set, for example:
bool RequiresSpecialEvent(int numError)
{
return specialSet.find(numError) != specia...
Problems with contenttypes when loading a fixture in Django
... corrupt data due to objects referring to wrong objects and you don't yet know about it
– Ski
Feb 10 '15 at 18:30
...
How do I save a stream to a file in C#?
I have a StreamReader object that I initialized with a stream, now I want to save this stream to disk (the stream may be a .gif or .jpg or .pdf ).
...