Python get_col Examples

Example #1

File: exploring_data.py Project: samf14/data_science

	def matrix_entry(i, j):
		return stats.correlation(lin_alg.get_col(data, i), get_col(data, j))

Example #2

File: working_with_data.py Project: samf14/data_science

def scale(data_matrix):
	'''returns mean and sd of each column'''
	num_rows, num_cols = lin_alg.shape(data_matrix)
	means = [stats.mean(lin_alg.get_col(data_matrix, j)) for j in range(num_cols)]
	stdevs = [stats.standard_deviation(lin_alg.get_col(data_matrix, j)) for j in range(num_cols)]
	return means, stdevs