I just picked up image processing in python this past week at the suggestion of a friend to generate patterns of random colors. I found this piece of script online that generates a wide array of different colors across the RGB spectrum. I am simply interesting in appending this script to only generate one of three random colors. Preferably red,
Tag: random
Python: Random System time seed
In python, and assuming I’m on a system which has a random seed generator, how do I get random.seed() to use system time instead? (As if /dev/urandom did not exist) Answer
Randomly extract x items from a list using python
Starting with two lists such as: I want to have the user input how many items they want to extract, as a percentage of the overall list length, and the same indices from each list to be randomly extracted. For example say I wanted 50% the output would be I have achieved this using the following code: But I was
Python: Random selection per group
Say that I have a dataframe that looks like: How could I randomly select one (or more) row for each Group_Id? Say that I want one random draw per Group_Id, I would get: Answer
Fast arbitrary distribution random sampling (inverse transform sampling)
The random module (http://docs.python.org/2/library/random.html) has several fixed functions to randomly sample from. For example random.gauss will sample random point from a normal distribution with a given mean and sigma values. I’m looking for a way to extract a number N of random samples between a given interval using my own distribution as fast as possible in python. This is what
Random word generator- Python
So i’m basically working on a project where the computer takes a word from a list of words and jumbles it up for the user. there’s only one problem: I don’t want to keep having to write tons of words in the list, so i’m wondering if there’s a way to import a ton of random words so even I
What’s the best way to generate random strings of a specific length in Python?
For a project, I need a method of creating thousands of random strings while keeping collisions low. I’m looking for them to be only 12 characters long and uppercase only. Any suggestions? Answer CODE: OUTPUT: 5 examples: EDIT: If you need only digits, use the digits constant instead of the ascii_uppercase one from the string module. 3 examples:
Correct way to generate random numbers in Cython?
What is the most efficient and portable way to generate a random random in [0,1] in Cython? One approach is to use INT_MAX and rand() from the C library: Is it OK to use INT_MAX in this way? I noticed that it’s quite different from the constant you get from Python’s max int: yields: Which is the right “normalization” number
Random row selection in Pandas dataframe
Is there a way to select random rows from a DataFrame in Pandas. In R, using the car package, there is a useful function some(x, n) which is similar to head but selects, in this example, 10 rows at random from x. I have also looked at the slicing documentation and there seems to be nothing equivalent. Update Now using
multiplication game python
I am supposed to write a program in python that asks the user how many multiplication questions they want, and it randomly gives them questions with values from 1 to 10. Then it spits out the percentage they got correct. My code keeps repeating the same set of numbers and it also doesn’t stop at the number the user asked