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Re-ordering columns in pandas dataframe based on column name [duplicate]
I have a dataframe with over 200 columns. The issue is as they were generated the order is
11 Answers
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Why is a 3-way merge advantageous over a 2-way merge?
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answered Nov 8 '10 at 23:36
JW.JW.
46.4k3030 gold badges106106 silver badges127127 bronze badges
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Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
...dynamic d)
{
int y;
if(d || M(out y))
y = 10;
return y;
}
}
I see no reason why that should be illegal; if you replace dynamic with bool it compiles just fine.
I'm actually meeting with the C# team tomorrow; I'll mention it to them. Apologies for the ...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...taken from Google
NSDate *yesterday = [today dateByAddingTimeInterval: -86400.0];
NSDate *thisWeek = [today dateByAddingTimeInterval: -604800.0];
NSDate *lastWeek = [today dateByAddingTimeInterval: -1209600.0];
// To get the correct number of seconds in each month use NSCalendar
NSDate *thisMonth...
How to determine if a decimal/double is an integer?
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For floating point numbers, n % 1 == 0 is typically the way to check if there is anything past the decimal point.
public static void Main (string[] args)
{
decimal d = 3.1M;
Console.WriteLine((d % 1) == 0);
d = 3.0M;
Console.WriteLine((d % 1) ...
Remove last character of a StringBuilder?
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Tyler
51011 gold badge88 silver badges2020 bronze badges
answered Aug 3 '10 at 9:49
Jon SkeetJon Skeet
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Mongodb Explain for Aggregation framework
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Starting with MongoDB version 3.0, simply changing the order from
collection.aggregate(...).explain()
to
collection.explain().aggregate(...)
will give you the desired results (documentation here).
For older versions >= 2.6, you will need to use th...
Why is it possible to recover from a StackOverflowError?
...red Mar 2 '14 at 13:59
user395760user395760
1
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Should I compile release builds with debug info as “full” or “pdb-only”?
In Visual Studio 2010 for a C# project, if you go to Project Properties > Build > Advanced > Debug Info you have three options: none, full, or pdb-only. Based on the answer to this question , I believe I understand some of the differences between full and pdb-only. However, which is more appropri...