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Is it possible to use global variables in Rust?
...t spawn. The upside is that unlike truly global state, it is entirely safe and is not a pain to use - true global state is a massive pain in any language. Here's an example:
extern mod sqlite;
use std::cell::RefCell;
thread_local!(static ODB: RefCell<sqlite::database::Database> = RefCell::n...
Looking for a good world map generation algorithm [closed]
I'm working on a Civilization-like game and I'm looking for a good algorithm for generating Earth-like world maps. I've experimented with a few alternatives, but haven't hit on a real winner yet.
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How can I delete the current line in Emacs?
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If you want to delete a number of whole lines, you can prefix the command with a number:
C-u 5 C-S-backspace # deletes 5 whole lines
M-5 C-S-backspace # deletes 5 whole lines
C-u C-S-backspace # delete 4 whole lines. C-u without a number defaults to 4
C-u -5 C-S-backspace # de...
Can I use `pip` instead of `easy_install` for `python setup.py install` dependency resolution?
...y apply across the system. This is useful if you are the package developer and want to test changes. It also means you can't delete the folder without breaking the install.
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Change old commit message on Git
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It says:
When you save and exit the editor, it will rewind you back to that last commit in that list and drop you on the command line with the following message:
$ git rebase -i HEAD~3
Stopped at 7482e0d... updated the gemspec to hopefully work be...
Set Colorbar Range in matplotlib
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Using vmin and vmax forces the range for the colors. Here's an example:
import matplotlib as m
import matplotlib.pyplot as plt
import numpy as np
cdict = {
'red' : ( (0.0, 0.25, .25), (0.02, .59, .59), (1., 1., 1.)),
'green':...
List vs Set vs Bag in NHibernate
What's the difference between a list, set and bag in the NHibernate mapping file? How does each relate to .NET collections?
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What do the return values of node.js process.memoryUsage() stand for?
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In order to answer this question, one has to understand V8’s Memory Scheme first.
A running program is always represented through some space allocated in memory. This space is called Resident Set. V8 uses a scheme similar to the Java Virtual Machine and divides the memory i...
HTML5shiv vs Dean Edwards IE7-js vs Modernizr - which to choose?
I'm looking to build my first HTML5 site and have been looking at working with IE.
3 Answers
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Increase number of axis ticks
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You can override ggplots default scales by modifying scale_x_continuous and/or scale_y_continuous. For example:
library(ggplot2)
dat <- data.frame(x = rnorm(100), y = rnorm(100))
ggplot(dat, aes(x,y)) +
geom_point()
Gives you this:
And overriding the scales can give you something like...