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How to iterate over associative arrays in Bash
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This is now if assign all keys to an array: array=(${!hash[@]})
– Michael-O
Jun 6 '13 at 10:54
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Gradle to execute Java class (without modifying build.gradle)
...you do both (build file approach and property approach), I actually don't know which takes precedence. You should either find that answer or not do both in your testing.
– Vidya
Jan 26 '14 at 2:25
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Retain precision with double in Java
...he BigDecimal class, if you want to have an exact representation of 11.4.
Now, a little explanation into why this is happening:
The float and double primitive types in Java are floating point numbers, where the number is stored as a binary representation of a fraction and a exponent.
More specifi...
How to change line width in ggplot?
...size = 11, hjust = 0.5,
vjust = 0.5, face = 'bold'))
You can now define the size to work appropriately with the final image size and device type.
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Can't escape the backslash with regex?
...eta characters. Take for example, finding a backslash followed by a digit. Now you'd be staring at the following expression trying to figure out what's going on: new RegExp('\\\\\\d');.
– jabacchetta
May 27 '18 at 18:04
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Round to at most 2 decimal places (only if necessary)
... You've 'solved' the 1.005 'problem', but introduced a new one: now, in the Chrome console, roundToTwo(1.0049999999999999) comes out as 1.01 (inevitably, since 1.0049999999999999 == 1.005). It seems to me that the float you get if you type num = 1.005 'obviously' 'should' round to 1.00, b...
How to convert a factor to integer\numeric without loss of information?
...I have an warning msg: Warning message:NAs introduced by coercion. Do you know where the problem could be? thank you !
– maycca
Apr 13 '16 at 21:23
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Malloc vs new — different padding
... of pointer, and when you pass this pointer to other functions they won't know how the object was allocated. sizeof *ptr is just dependent on the declaration of ptr, not how it was assigned.
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Rails where condition using NOT NIL
...aving, this is just a tiny facet. But of course a general case is good to know.
– Adam Lassek
Jul 26 '11 at 22:26
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why is plotting with Matplotlib so slow?
I'm currently evaluating different python plotting libraries. Right now I'm trying matplotlib and I'm quite disappointed with the performance. The following example is modified from SciPy examples and gives me only ~ 8 frames per second!
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