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adding noise to a signal in python
I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic.
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Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
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edited Jan 27 '10 at 23:56
answered Jan 26 '10 at 14:01
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How to quit scala 2.11.0 REPL?
In the last version of scala (2.10.3) REPL, I can type exit to quit from REPL. However, in Scala 2.11.0 this doesn't work.
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find() with nil when there are no records
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Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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Multiple select statements in Single query
...re is even a far better way, see my answer.
– Pentium10
Feb 13 '10 at 9:45
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"Operand should cont...
Most efficient way to store thousand telephone numbers
...t most 0...01, for how many phone numbers the first m bits are at most 0...10, etcetera, up to the count of phone numbers for which the first m bits are 1...11 - this last count is 1000(decimal). There are 2^m such counts and each count is at most 1000. If we omit the last one (because we know it is...
Possible to access the index in a Hash each loop?
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answered Jan 18 '10 at 2:38
YOUYOU
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Get loop count inside a Python FOR loop
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answered Jul 1 '10 at 23:02
Nick BastinNick Bastin
25.8k77 gold badges5252 silver badges7676 bronze badges
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for each loop in Objective-C for accessing NSMutable dictionary
... every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary is one of the few collections which lets you enumerate keys instead of values. I suggest you read about fast enumeration in the Collections Programming Topic.
Oh, I should add however that...
Accessing localhost:port from Android emulator
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You can access your host machine with the IP address "10.0.2.2".
This has been designed in this way by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "http://10.0.2.2:<hostport>".
If your emulator must ...