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in Ipython notebook / Jupyter, Pandas is not displaying the graph I try to plot
...ily using just ipython notebook --pylab with pandas to have the plot in an extra window, if that's what someone wants.
– K.-Michael Aye
Dec 18 '12 at 20:22
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What is so bad about singletons? [closed]
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I disagree with you. Since comments are allowed only 600 chars, I have written a Blog Post to comment on this, please see the link below. jorudolph.wordpress.com/2009/11/22/singleton-considerations
– Johannes Rudolph
Nov 22 '09 at 14:35
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round() for float in C++
...pdf)
#include <cmath>
#include <iostream>
int main(int argc, char** argv) {
std::cout << "round(0.5):\t" << round(0.5) << std::endl;
std::cout << "round(-0.5):\t" << round(-0.5) << std::endl;
std::cout << "round(1.4):\t" << round(1....
Is Meyers' implementation of the Singleton pattern thread safe?
...ingleton& instance()
{
static bool initialized = false;
static char s[sizeof( Singleton)];
if (!initialized) {
initialized = true;
new( &s) Singleton(); // call placement new on s to construct it
}
return (*(reinterpret_cast<Singleton*>( &s)))...
Is it safe to use -1 to set all bits to true?
... on datasets of N bits by breaking it down into chunks of sizeof(unsigned)*CHAR_BIT bits each.
– MSalters
May 4 '09 at 7:22
2
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pg_config executable not found
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I need the extra brew link postgresql
– vincentlcy
Mar 10 '16 at 8:56
1
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Getting java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory exception
...y right? I think it should probably be commons-logging-1.1.1.jar (note the extra - in the name). Also check if the directory name is correct.
NoClassDefFoundError always means that a class cannot be found, so most likely your class path is not correct.
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What are the differences between the threading and multiprocessing modules?
...at the same speed. (In reality, it'll run a little slower, because there's extra overhead from threading, even if you don't have any shared data, but ignore that for now.)
There are exceptions to this. If your code's heavy computation doesn't actually happen in Python, but in some library with cust...
HTTP status code for a partial successful request
... have an application that sends messages to users. In a post request a XML string is transferred that consists of all the users that should receive that particular message. If any of the users in the list do not exist I give the list of missing users back to the client for further evaluation.
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Convert Rows to columns using 'Pivot' in SQL Server
...rate the week number dynamically, your code will be:
DECLARE @cols AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX)
select @cols = STUFF((SELECT ',' + QUOTENAME(Week)
from yt
group by Week
order by Week
FOR XML PATH(''), TYPE
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