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Selecting a row of pandas series/dataframe by integer index
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What if you wanted the 2nd AND 3rd AND 4th row?
– FaCoffee
Nov 7 '16 at 20:36
1
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Spark java.lang.OutOfMemoryError: Java heap space
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I have a few suggestions:
If your nodes are configured to have 6g maximum for Spark (and are leaving a little for other processes), then use 6g rather than 4g, spark.executor.memory=6g. Make sure you're using as much memory as possible by checking the...
Get top 1 row of each group
... DESC) AS rn
FROM DocumentStatusLogs
)
SELECT *
FROM cte
WHERE rn = 1
If you expect 2 entries per day, then this will arbitrarily pick one. To get both entries for a day, use DENSE_RANK instead
As for normalised or not, it depends if you want to:
maintain status in 2 places
preserve status h...
How to capitalize the first letter in a String in Ruby
...sn't do what you want it to, it outputs мария instead of Мария.
If you're using Rails there's an easy workaround:
"мария".mb_chars.capitalize.to_s # requires ActiveSupport::Multibyte
Otherwise, you'll have to install the unicode gem and use it like this:
require 'unicode'
Unicod...
How to set environment variables in Jenkins?
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EnvInject does not work if the "execute shell" exits with an error because the build does not proceed to the injection part.
– Chadi
Apr 19 '16 at 7:57
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Use of “this” keyword in formal parameters for static methods in C#
...ension.methods;
for the extension methods to appear and to be available, if they are in a different namespace than the code using them.
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Add a new line in file?
...
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
...
What does #defining WIN32_LEAN_AND_MEAN exclude exactly?
...
Directly from the Windows.h header file:
#ifndef WIN32_LEAN_AND_MEAN
#include <cderr.h>
#include <dde.h>
#include <ddeml.h>
#include <dlgs.h>
#ifndef _MAC
#include <lzexpand.h>
#include <mmsystem.h&...
How can I convert NSDictionary to NSData and vice versa?
...
In Swift 2 you can do it in this way:
var dictionary: NSDictionary = ...
/* NSDictionary to NSData */
let data = NSKeyedArchiver.archivedDataWithRootObject(dictionary)
/* NSData to NSDictionary */
let unarchivedDictionary = NSK...
C# - How to get Program Files (x86) on Windows 64 bit
...gram running on 64 bit windows
static string ProgramFilesx86()
{
if( 8 == IntPtr.Size
|| (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"))))
{
return Environment.GetEnvironmentVariable("ProgramFiles(x86)");
}
return Environme...