Pandas Sample Code - Udacity Machine Learning

• .groupby()
• .count()
• pandas.DataFrame.count
• .sum()
• df[df["class"]==1].count()["value"]
• countOfColumn = myDataFrame[conditionColumn["myCondition"]=="myCondValue"].count()["conditionColumn"] get row count by column condition and value
• pandas.Series.map
• pandas.DataFrame.count
• df[(df['A']>0) & (df['B']>0) & (df['C']>0)]
• pandas.DataFrame.sum
• df.groupby('a').count()
• df.first()