大约有 48,000 项符合查询结果(耗时:0.0724秒) [XML]

https://stackoverflow.com/ques... 

Create numpy matrix filled with NaNs

...oops for vector operations in numpy. You can create an uninitialized array and assign to all entries at once: >>> a = numpy.empty((3,3,)) >>> a[:] = numpy.nan >>> a array([[ NaN, NaN, NaN], [ NaN, NaN, NaN], [ NaN, NaN, NaN]]) I have timed the alte...
https://stackoverflow.com/ques... 

iOS 7 - Status bar overlaps the view

...In the storyboard, I moved my views 20 pixels down to look right on iOS 7 and in order to make it iOS 6 compatible, I changed Delta y to -20. Since my storyboard is not using auto-layout, in order to resize the height of views properly on iOS 6 I had to set Delta height as well as Delta Y. ...
https://stackoverflow.com/ques... 

Plot correlation matrix into a graph

... Quick, dirty, and in the ballpark: library(lattice) #Build the horizontal and vertical axis information hor <- c("214", "215", "216", "224", "211", "212", "213", "223", "226", "225") ver <- paste("DM1-", hor, sep="") #Build the fa...
https://stackoverflow.com/ques... 

Java: Check if enum contains a given string?

... @Jared, definitely valueOf. Just catch your exception and return false. To those who say otherwise, if you look at the implementation, it uses a Map already, and the JDK developers have a much better chance to optimize this. The API throws an exception, which is a debatable prac...
https://stackoverflow.com/ques... 

How to specify different Debug/Release output directories in QMake .pro file

I have a Qt project and I would like to output compilation files outside the source tree. 11 Answers ...
https://stackoverflow.com/ques... 

Finding the handle to a WPF window

Windows forms had a property win1.Handle which, if I recall, returns the handle of the main window handle? 4 Answers ...
https://stackoverflow.com/ques... 

Can I prevent the Firefox developer tools network panel from clearing on page reload?

... And it's on central column on the top of the screen (for those who haven't an english version of the settings, in fr : "Préférence générales/activer les journaux persistants") – pdem ...
https://stackoverflow.com/ques... 

Import a module from a relative path

... of modules with your script. I use this in production in several products and works in many special scenarios like: scripts called from another directory or executed with python execute instead of opening a new interpreter. import os, sys, inspect # realpath() will make your script run, even if ...
https://stackoverflow.com/ques... 

How to find out if a Python object is a string?

...a subclass of a string type: isinstance(o, basestring) because both str and unicode are subclasses of basestring. To check if the type of o is exactly str: type(o) is str To check if o is an instance of str or any subclass of str: isinstance(o, str) The above also work for Unicode strings ...
https://stackoverflow.com/ques... 

What does this mean: Failure [INSTALL_FAILED_CONTAINER_ERROR]?

I try to deploy my app and sometimes get this error: 14 Answers 14 ...