Frequency of one specific value in a DataFrame column I am attempting to count the frequency of one specific value 'Devonport' in the column 'Ground' in a data set. I have tried to use the Groupby function and the value.counts() and it is only returning the first and last 5 unique values in the column which has a total of 173 unique values. I know there is one occurrence of 'Devonport' in the column 'Ground' because I opened the csv file and filtered on the column, but I am unable to get the function to return this in jupyter notebook. Any help...