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python plot normal distribution
...ot as plt
import numpy as np
import scipy.stats as stats
import math
mu = 0
variance = 1
sigma = math.sqrt(variance)
x = np.linspace(mu - 3*sigma, mu + 3*sigma, 100)
plt.plot(x, stats.norm.pdf(x, mu, sigma))
plt.show()
s...
How do I get my Python program to sleep for 50 milliseconds?
How do I get my Python program to sleep for 50 milliseconds?
6 Answers
6
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Maximum single-sell profit
...ry!), but it's helpful to see the algorithm evolve:
5 10 4 6 7
min 5 5 4 4 4
best (5,5) (5,10) (5,10) (5,10) (5,10)
Answer: (5, 10)
5 10 4 6 12
min ...
What does %~d0 mean in a Windows batch file?
...
The magic variables %n contains the arguments used to invoke the file: %0 is the path to the bat-file itself, %1 is the first argument after, %2 is the second and so on.
Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the...
Getting a map() to return a list in Python 3.x
...
802
Do this:
list(map(chr,[66,53,0,94]))
In Python 3+, many processes that iterate over iterable...
Creating range in JavaScript - strange syntax
...
+1000
Understanding this "hack" requires understanding several things:
Why we don't just do Array(5).map(...)
How Function.prototype.app...
How to run cron job every 2 hours
...
Just do:
0 */2 * * * /home/username/test.sh
The 0 at the beginning means to run at the 0th minute. (If it were an *, the script would run every minute during every second hour.)
Don't forget, you can check syslog to see if it eve...
Standardize data columns in R
...have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages.
15 An...
Scaling Node.js
...like to know what the general principles are for scaling node up to, say, 20 queries per second.
1 Answer
...
How to fix the uninitialized constant Rake::DSL problem on Heroku?
...
205
Put this in your Rakefile above require 'rake':
require 'rake/dsl_definition'
...