Series

Basic

An array with a named index.

Example of data structure:

Num IndexLabeled IndexData
0UK1231
1USA4124
myindex = ['UK', 'USA']
mydata = [1231, 4124]

mySeries = pd.Series(data=mydata, index=myindex)

mySeries[1]
mySeries['USA']

series.keys() # returns all keys, in index order

Using Dictionaries

mydata = {'UK': 1231, 'USA': 4124}
pd.Series(mydata)

Operations

# operations boardcast
series + 10

# performs add operation based on each key name
series1 + series2 

# if values are missing from eather, they will be filled with 0
series1.add(series2, fill_value=0)