Group and average NumPy matrix Question: Say I have an arbitrary numpy matrix that looks like this: arr = [[ 6.0 12.0 1.0] [ 7.0 9.0 1.0] [ 8.0 7.0 1.0] [ 4.0 3.0 2.0] [ 6.0 1.0 2.0] [ 2.0 5.0 2.0] [ 9.0 4.0 3.0] [ 2.0 1.0 4.0] [ 8.0 4.0 4.0] …
np.mean() vs np.average() in Python NumPy? Question: I notice that In [30]: np.mean([1, 2, 3]) Out[30]: 2.0 In [31]: np.average([1, 2, 3]) Out[31]: 2.0 However, there should be some differences, since after all they are two different functions. What are the differences between them? Asked By: Sibbs Gambling || Source Answers: In your invocation, the …
Averaging over every n elements of a numpy array Question: I have a numpy array. I want to create a new array which is the average over every consecutive triplet of elements. So the new array will be a third of the size as the original. As an example: np.array([1,2,3,1,2,3,1,2,3]) should return the array: np.array([2,2,2]) …
Finding moving average from data points in Python Question: I am playing in Python a bit again, and I found a neat book with examples. One of the examples is to plot some data. I have a .txt file with two columns and I have the data. I plotted the data just fine, but in …
Finding the average of a list Question: How do I find the mean average of a list in Python? [1, 2, 3, 4] ⟶ 2.5 Asked By: Carla Dessi || Source Answers: For Python 3.8+, use statistics.fmean for numerical stability with floats. (Fast.) For Python 3.4+, use statistics.mean for numerical stability with floats. (Slow.) xs …
How to get average from set of objects in Django? Question: I have a simple rating system for a property. You give it a mark out of 5 (stars). The models are defined like this def Property(models.Model) # stuff here def Rating(models.Model) property = models.ForeignKey(Property) stars = models.IntegerField() What I want to do is get …
calculate exponential moving average in python Question: I have a range of dates and a measurement on each of those dates. I’d like to calculate an exponential moving average for each of the dates. Does anybody know how to do this? I’m new to python. It doesn’t appear that averages are built into the standard …
