Jul 12, 2011 · 486 If you really want a matrix, you might be better off using numpy. Matrix operations in numpy most often use an array type with two dimensions. There are many ways …

Apr 7, 2015 · 2 This is a pure Python and numpy solution for generating a distance matrix. Redundant computations can skipped (since distance is symmetric, distance (a,b) is the same …

Jun 7, 2012 · How do I create an identity matrix with numpy? Is there a simpler syntax than numpy.matrix (numpy.identity (n))

Oct 23, 2014 · There have been a couple questions on SO about how to initialize a 2-dimensional matrix, with the answer being something like this: matrix = [[0 for x in range(10)] for x in …

Apr 30, 2015 · I am trying to create a matrix of random numbers, but my solution is too long and looks ugly random_matrix = [[random.random() for e in range(2)] for e in range(3)] this looks …

Dec 2, 2014 · I'm trying to create a data matrix from an XML file using xlrd. Below is the XML data and my attempt:

Oct 19, 2016 · Creating a Matrix in Python without numpy [duplicate] Asked 9 years, 1 month ago Modified 7 years, 3 months ago Viewed 111k times

I know how to do this in R. But, is there any function in pandas that transforms a dataframe to an nxn co-occurrence matrix containing the counts of two aspects co-occurring. For example a …

Creating a matrix in Pandas Asked 8 years, 11 months ago Modified 8 years, 2 months ago Viewed 7k times

Mar 20, 2013 · How to make a matrix of arrays in numpy? Asked 12 years, 8 months ago Modified 12 years, 8 months ago Viewed 15k times