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Reverse colormap in matplotlib
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As a LinearSegmentedColormaps is based on a dictionary of red, green and blue, it's necessary to reverse each item:
import matplotlib.pyplot as plt
import matplotlib as mpl
def reverse_colourmap(cmap, name = 'my_cmap_r'):
"""
In:
cmap, name
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SQLite with encryption/password protection
... Do you have any documentation of How-To-Use Botan for SQLite database encryption? The Botan web site does not mention this feature.
– Marc Schlösser
Feb 29 '12 at 16:17
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How to save a plot as image on the disk?
... Is there any way for R to infer the file extension automatically (i.e. based on the function)? It seems tedious to have to change the filename as well as the function used.
– Bonlenfum
Nov 4 '15 at 17:25
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Random alpha-numeric string in JavaScript? [duplicate]
...'#A!'));
Fiddle: http://jsfiddle.net/wSQBx/2/
Alternatively, to use the base36 method as described below you could do something like this:
function randomString(length) {
return Math.round((Math.pow(36, length + 1) - Math.random() * Math.pow(36, length))).toString(36).slice(1);
}
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Good way to use table alias in Update statement?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How do I get the full path to a Perl script that is executing?
...ch environments, I use __FILE__ and get the path from that using the File::Basename module:
use File::Basename;
my $dirname = dirname(__FILE__);
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Deserializing JSON data to C# using JSON.NET
...om a remote URL.
using Newtonsoft.Json;
using System.Net.Http;
namespace Base
{
public class ApiConsumer<T>
{
public T data;
private string url;
public CalendarApiConsumer(string url)
{
this.url = url;
this.data = getItems();
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Can you have a within a ?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Addressing localhost from a VirtualBox virtual machine [closed]
....0.2.2 to localhost:8888 ? I have localhost:8888 as the home url in my database. Going to 10.0.2.2 in VB loads the HTML page, but all the links break because they're pointing to localhost:8888
– Michael Giovanni Pumo
Sep 25 '14 at 13:41
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Integer division with remainder in JavaScript?
...8 millisec
(a-(a%b))/b // -33, 0.6649 millisec
The above is based on 10 million trials for each.
Conclusion: Use (a/b>>0) (or (~~(a/b)) or (a/b|0)) to achieve about 20% gain in efficiency. Also keep in mind that they are all inconsistent with Math.floor, when a/b<0 &&...