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Generate a heatmap in MatPlotLib using a scatter data set
...50 heatmap. If you want, say, 512x384, you can put bins=(512, 384) in the call to histogram2d.
Example:
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Do I have to Close() a SQLConnection before it gets disposed?
Per my other question here about Disposable objects , should we call Close() before the end of a using block?
8 Answers
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Expand a random range from 1–5 to 1–7
...for some readers. It assumes rand5() is a function that returns a statistically random integer in the range 1 through 5 inclusive.
int rand7()
{
int vals[5][5] = {
{ 1, 2, 3, 4, 5 },
{ 6, 7, 1, 2, 3 },
{ 4, 5, 6, 7, 1 },
{ 2, 3, 4, 5, 6 },
{ 7, 0, 0, 0, 0...
How to elegantly ignore some return values of a MATLAB function?
... return value from a function without having to create dummy variables for all n-1 return values before it?
8 Answers
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Inserting a tab character into text using C#
...re than one TextBox are displayed and that alignment must be respected for all TextBox, the ONLY "\t" or vbTab solution will display something that is NOT ALWAYS correctly aligned.
Example in VB.Net:
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox1.Text = ...
Format floats with standard json module
...loat class in Tom Wuttke's answer works, but only if %g encoding works globally for your application. The %.15g is a bit magic, it works because float precision is 17 significant digits and %g does not print trailing zeroes.
I spent some time trying to make a PrettyFloat that allowed customization ...
Python json.loads shows ValueError: Extra data
...) # == json.loads(json.dumps({}) + json.dumps({}))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\json\__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "C:\Python27\lib\json\decoder.py", line 368, in decode
...
C++ 读写xml方法整理（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...*******************
* outline.c
*
* Copyright 1999, Clark Cooper
* All rights reserved.
*/
#include <stdio.h>
#include <expat.h>
#if defined(__amigaos__) && defined(__USE_INLINE__)
#include <proto/expat.h>
#endif
#ifdef XML_LARGE_SIZE
#if defined(XML_USE_MSC_EXTENSIONS) && _MS...
How can I do a line break (line continuation) in Python?
...
Actually, you have the style guide's preference exactly backwards. Implicit continuation is preferred, explicit backslash is to be used only if necessary.
– Carl Meyer
Sep 11 '08 at 19:00
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)
... retaining the copy.
Assign
Assign is somewhat the opposite to copy. When calling the getter of an assign property, it returns a reference to the actual data. Typically you use this attribute when you have a property of primitive type (float, int, BOOL...)
Retain
retain is required when the attribut...