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How to wait for all goroutines to finish without using time.Sleep?
... need any data to be passed, so use an empty struct
for i := 0; i < 100; i++ {
go func() {
doSomething()
c <- struct{}{} // signal that the routine has completed
}()
}
// Since we spawned 100 routines, receive 100 messages.
for i := 0; i...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
.................................
def kmeans( X, centres, delta=.001, maxiter=10, metric="euclidean", p=2, verbose=1 ):
""" centres, Xtocentre, distances = kmeans( X, initial centres ... )
in:
X N x dim may be sparse
centres k x dim: initial centres, e.g. random.sample( X, k )
...
passing several arguments to FUN of lapply (and others *apply)
...ith 'input'.
– Alan
Aug 27 '15 at 1:10
10
I just found an answer in another post that works: mapp...
Generating random numbers in Objective-C
...
1031
You should use the arc4random_uniform() function. It uses a superior algorithm to rand. You d...
Passing command line arguments in Visual Studio 2010?
... how to pass command line arguments to my main function in Visual Studio 2010 Express Edition. I want to debug - how do these command line arguments work?
...
How does having a dynamic variable affect performance?
...
110
Update: Added precompiled and lazy-compiled benchmarks
Update 2: Turns out, I'm wrong. See Eric...
Which version of PostgreSQL am I running?
... won't work)
– Highly Irregular
Jul 10 '14 at 2:31
43
This can also be ran from the command line ...
Ternary operation in CoffeeScript
...hus results in a value, you can just use if/else.
a = if true then 5 else 10
a = if false then 5 else 10
You can see more about expression examples here.
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fatal: 'origin' does not appear to be a git repository
... to master?
– Wolfpack'08
Jan 25 at 10:16
@Wolfpack'08 "fork" means a repository (with multiple branch). Change to a b...
WPF ToolBar: how to remove grip and overflow
... not present.
– Chris Bennet
Apr 6 '10 at 14:21
2
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