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Other 2021-12-23 17:17:14
dataframe divided by rowsum
result.div(result.sum(axis=1), axis=0) Add solution -
Python 2021-11-20 20:40:28
python count the number of zeros in each row of a pandas dataframe
# Basic syntax: (pandas_dataframe == 0).sum(axis=1) # Where axis 1 specifies that sum will operate on rows. Use 0 for columns # Example usage: # Create Pandas dataframe: import pandas as pd pandas_dataframe = pd.DataFrame({'a':[1,0,0,1,3], ... Add solution -
Python 2021-11-19 19:27:14
accuracy for each class
from sklearn.metrics import confusion_matrix import numpy as np y_true = [0, 1, 2, 2, 2] y_pred = [0, 0, 2, 2, 1] target_names = ['class 0', 'class 1', 'class 2'] #Get the confusion matrix cm = confusion_matrix(y_true, y_pred) #array([[1, 0, 0], # [1,... Add solution -
Python 2021-11-11 06:59:07
pandas sum rows
# Basic syntax: df.sum(axis=1) # Create new column consisting of row sums across specific columns: df['sums'] = df.iloc[:, 6:23].sum(axis=1) # Where: # - iloc allows you to specify the rows and columns with slicing. Here # I select all rows and sum ove... Add solution -
Python 2021-11-08 20:35:10
first hitting time python
from numpy import * hit_idx = (0,4) # Define a graph by edge list edges = [[0,1],[1,2],[2,3],[2,4]] # Create adj. matrix A = zeros((5,5)) A[zip(*edges)] = 1 # Undirected condition A += A.T # Make the final state an absorbing condition A[hit_idx[1],:] ... Add solution -
Python 2021-10-04 07:54:07
get number of zero is a row pandas
# Basic syntax: (pandas_dataframe == 0).sum(axis=1) # Where axis 1 specifies that sum will operate on rows. Use 0 for columns # Example usage: # Create Pandas dataframe: import pandas as pd pandas_dataframe = pd.DataFrame({'a':[1,0,0,1,3], ... Add solution
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