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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
...ion
from sklearn.preprocessing import FunctionTransformer
np.random.seed(123)
# General Functions
def func_exp(x, a, b, c):
"""Return values from a general exponential function."""
return a * np.exp(b * x) + c
def func_log(x, a, b, c):
"""Return values from a general log function...
How to encrypt String in Java
...ou need to pick a symmetric key Block Cipher. A Block Cipher is a computer function/program used to create Pseudo-Randomness. Pseudo-Randomness is fake randomness that no computer other than a Quantum Computer would be able to tell the difference between it and real randomness. The Block Cipher is l...
Scheduling recurring task in Android
...k stackoverflow.com/questions/27872016/…
– dowjones123
Jan 10 '15 at 2:07
For simple things - like checking state ev...
Asking the user for input until they give a valid response
...u are not able to vote in the United States.")
Encapsulating it All in a Function
If you need to ask your user for a lot of different values, it might be useful to put this code in a function, so you don't have to retype it every time.
def get_non_negative_int(prompt):
while True:
tr...
What's the difference between :: (double colon) and -> (arrow) in PHP?
...ic function sin($angle) {
return ...;
}
}
$result = Math::sin(123);
Also, the :: operator (the Scope Resolution Operator, a.k.a Paamayim Nekudotayim) is used in dynamic context when you invoke a method/property of a parent class:
class Rectangle {
protected $x, $y;
public ...
How to print a number with commas as thousands separators in JavaScript
...ith commas as thousands separators. For example, I want to show the number 1234567 as "1,234,567". How would I go about doing this?
...
When to use symbols instead of strings in Ruby?
..., mode: "ascii")
# removed for brevity
end
write(data: 123, file: "test.txt")
freeze to keep as a string and save memory
label = 'My Label'.freeze
share
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improve this answe...
Why is Git better than Subversion?
...
Linus' talk is fun to watch. He brutally rips centralized version control systems like Subversion and CVS. However, Randal Schwartz' youtube.com/watch?v=8dhZ9BXQgc4 talk is more constructive, more informative and more convincing.
...
Why does one use dependency injection?
...iled. It just seems silly. My code is never a mess; I hardly write virtual functions and interfaces (although I do once in a blue moon) and all my configuration is magically serialized into a class using json.net (sometimes using an XML serializer).
...
Set the location in iPhone Simulator
...
123
As of iOS 5, the simulator has a configurable location.
Under the Debug menu, the last entry ...