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Is it better to call ToList() or ToArray() in LINQ queries?
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Pass a data.frame column name to a function
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109
You can just use the column name directly:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 &...
Python multiprocessing pool.map for multiple arguments
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Ruby: What is the easiest way to remove the first element from an array?
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Why does Math.round(0.49999999999999994) return 1?
...n Java 6 (and presumably earlier), round(x) is implemented as floor(x+0.5).1 This is a specification bug, for precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
The problem
0.5+0.49999999999999994 is exactly 1 in double precision:
static void print(do...
What are the GCC default include directories?
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In order to figure out the default paths used by gcc/g++, as well as their priorities, you nee...
Call apply-like function on each row of dataframe with multiple arguments from each row
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How to get first and last day of previous month (with timestamp) in SQL Server
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13 Answers
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How to extract one column of a csv file
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16 Answers
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How do you split a list into evenly sized chunks?
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