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Replace values in list using Python [duplicate]
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207
Build a new list with a list comprehension:
new_items = [x if x % 2 else None for x in items]...
How do I extract a sub-hash from a hash?
...main the same:
h1 = {:a => :A, :b => :B, :c => :C, :d => :D}
h2 = h1.select {|key, value| [:b, :d, :e, :f].include?(key) } # => {:b=>:B, :d=>:D}
h1 = Hash[h1.to_a - h2.to_a] # => {:a=>:A, :c=>:C}
And if you want to patch that into the Hash class:
class Hash
def ...
How do I calculate percentiles with python/numpy?
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294
You might be interested in the SciPy Stats package. It has the percentile function you're afte...
Boolean operators && and ||
...rter ones are vectorized, meaning they can return a vector, like this:
((-2:2) >= 0) & ((-2:2) <= 0)
# [1] FALSE FALSE TRUE FALSE FALSE
The longer form evaluates left to right examining only the first element of each vector, so the above gives
((-2:2) >= 0) && ((-2:2) <...
Compare two List objects for equality, ignoring order [duplicate]
... before comparing:
Enumerable.SequenceEqual(list1.OrderBy(t => t), list2.OrderBy(t => t))
Edit:
Here is a solution that performs a bit better (about ten times faster), and only requires IEquatable, not IComparable:
public static bool ScrambledEquals<T>(IEnumerable<T> list1, IE...
Array slices in C#
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201
Arrays are enumerable, so your foo already is an IEnumerable<byte> itself.
Simply use LI...
oracle10g 网址收藏 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...迅雷进行下载，就不用登陆OTN了：Oracle Database 10g Release 2 (10.2.0.1....载OTN上的这些软件，你需要一个OTN免费帐号，不过如果通过迅雷进行下载，就不用登陆OTN了：
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Wi...
App Inventor 2 中文网VIP专享内容 · App Inventor 2 中文网
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With bash, how can I pipe standard error into another process?
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172
There is also process substitution. Which makes a process substitute for a file.
You can send s...