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Heroku error: “Permission denied (public key)”
I keep getting this error. I am using Mac. I generated a key and added it to heroku using
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How to read data from a zip file without having to unzip the entire file
Is there anyway in .Net (C#) to extract data from a zip file without decompressing the complete file?
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python numpy ValueError: operands could not be broadcast together with shapes
In numpy, I have two "arrays", X is (m,n) and y is a vector (n,1)
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How to use RSpec's should_raise with any kind of exception?
... some_method }.to raise_error
RSpec 1 Syntax:
lambda { some_method }.should raise_error
See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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Recommended way to stop a Gradle build
How can I stop a Gradle build after detecting a problem? I can use an assert, throw an exception, do a System.exit (bad idea), or use a dedicated function in Gradle (but I could not find one). What is the best way for Gradle (and why?).
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How default .equals and .hashCode will work for my classes?
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Yes, the default implementation is Object's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead).
From the documentation:
equals
The equals method for c...
How do I do an initial push to a remote repository with Git?
I've read through countless tutorials and I keep coming up short. Here's what I've got:
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Regular expression for exact match of a string
I want to match two passwords with regular expression. For example I have two inputs "123456" and "1234567" then the result should be not match (false). And when I have entered "123456" and "123456" then the result should be match (true).
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Confusion between factor levels and factor labels
There seems to be a difference between levels and labels of a factor in R.
Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows:
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`elif` in list comprehension conditionals
Can we use elif in list comprehension?
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