Mastering Python Scripting for System Administrators

Chapter 17, Statistics Gathering and Reporting

1. NumPy's main object is the homogeneous multidimensional array. It is a table of elements (usually numbers), all of the same type, indexed by a tuple of positive integers. In NumPy, dimensions are called axes.
2. Following is the output:

1st Input array :  [[ 1 2 3] [-1 -2 -3]]2nd Input array :  [[ 4 5 6] [-4 -5 -6]]Output stacked array : [[ 1 2 3 4 5 6] [-1 -2 -3 -4 -5 -6]]

3. Following is the answer:

Z = np.arange(10)np.add.reduce(Z)

4. Following is the answer:

# Delete the rows with labels 0,1,5data = data.drop([0,1,2], axis=0)# Delete the first five rows using iloc selectordata = data.iloc[5:,]#to delete the columndel df.column_name

5. Following is the answer:

df.to_csv(“file_name.csv”,index=False, ...