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Create an array with random values
...lso: en.wikipedia.org/wiki/Combination (distinction between "with" or "without repetition"
– chiccodoro
Aug 25 '14 at 16:06
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How to use a variable for the database name in T-SQL?
... @syclee A TSQL variable? No the sqlcmd substitutions are carried out before the script is even sent to the server.
– Martin Smith
Apr 14 '15 at 7:22
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...ables inside a function are only available inside that function. Variables outside of functions are available anywhere outside of functions, but not inside any function. This means there's one special scope in PHP: the global scope. Any variable declared outside of any function is within this global...
Format numbers to strings in Python
I need to find out how to format numbers as strings. My code is here:
8 Answers
8
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Add new row to dataframe, at specific row-index, not appended?
...0 854.6320 881.6560 10641.417
Benchmarks
As @MatthewDowle always points out to me, benchmarks need to be examined for the scaling as the size of the problem increases. Here we go then:
benchmarkInsertionSolutions <- function(nrow=5,ncol=4) {
existingDF <- as.data.frame(matrix(seq(nrow*n...
Which is more efficient: Multiple MySQL tables or one large table?
...ly it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tables into one big table of related content.
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how do I work around log4net keeping changing publickeytoken
...st place :)
Download the version of 1.2.11.0 signed with the old key.
Sort out your own code out by removing any direct references to log4net (new key) and replace with a reference to the assembly signed with the old key.
Sort out any dependant assemblies you may have by including this segment in yo...
Eclipse / Android : “Errors running builder 'Android Pre Compiler' on project…”
...iles and folders", "All children". In the text entry box input ".svn" (without quotes).
Restart Eclipse.
I had the same problem with .git folder, it worked like a charm.
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Can't pickle when using multiprocessing Pool.map()
I'm trying to use multiprocessing 's Pool.map() function to divide out work simultaneously. When I use the following code, it works fine:
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Why do I need to override the equals and hashCode methods in Java?
...rstand it with an example of what would happen if we override equals() without overriding hashCode() and attempt to use a Map.
Say we have a class like this and that two objects of MyClass are equal if their importantField is equal (with hashCode() and equals() generated by eclipse)
public class MyC...