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Perl build, unit testing, code coverage: A complete working example
...tTest() IS true test");
# Test argumentTest("false")
my $argumentTestCall3 = HelloPerlBuildWorld::argumentTest("false");
is($argumentTestCall3, "false", "argumentTest() IS false test");
# Test argumentTest(123)
my $argumentTestCall4 = HelloPerlBuildWorld::argumentTest(123);
is($argumentTestCall4...
Using the field of an object as a generic Dictionary key
... Marc Gravell♦Marc Gravell
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SparseArray vs HashMap
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SparseArray can be used to replace HashMap when the key is a primitive type.
There are some var...
Difference between method and function in Scala
...reference.
First, let's see what the Scala Specification tell us. Chapter 3 (types) tell us about Function Types (3.2.9) and Method Types (3.3.1). Chapter 4 (basic declarations) speaks of Value Declaration and Definitions (4.1), Variable Declaration and Definitions (4.2) and Functions Declarations ...
Is there an exponent operator in C#?
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The C# language doesn't have a power operator. However, the .NET Framework offers the Math.Pow ...
What is the difference between ELF files and bin files?
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answered Mar 11 '10 at 17:30
t0mm13bt0mm13b
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When is the thread pool used?
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edited May 23 '17 at 12:26
Community♦
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answered Mar 25 '14 at 19:44
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How to find out the number of CPUs using python
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Anthony Sottile
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answered Jun 17 '09 at 10:53
Nadia AlramliN...
Remove an entire column from a data.frame in R
...enome <- NULL
> head(Data)
chr region
1 chr1 CDS
2 chr1 exon
3 chr1 CDS
4 chr1 exon
5 chr1 CDS
6 chr1 exon
As pointed out in the comments, here are some other possibilities:
Data[2] <- NULL # Wojciech Sobala
Data[[2]] <- NULL # same as above
Data <- Data[,-2] ...
Optimise PostgreSQL for fast testing
...memory limit if you increase shared_buffers on PostgreSQL 9.2 and below; 9.3 and above changed how they use shared memory to avoid that.
If you're using a just a couple of connections that do lots of work, increase work_mem to give them more RAM to play with for sorts etc. Beware that too high a wo...