Counting the frequency of an element in a data frame
29638
Count number of occurences for each unique value
19054
Deleting specific rows from a data frame
6493
Repeat each row of data.frame the number of times specified in a column
96906
Calculating statistics on subsets of data
112047
Retrieving array elements with an array of frequencies in NumPy
144193
Sorted Word frequency count using python
56874
How can I remove all duplicates so that NONE are left in a data frame?
43107
Count the number occurrences of a character in a string
74952
python - Count number of occurrences of each number
77039
Statistical test in R for count data
112425
Calculating the average of variably sized blocks of numbers within a column?
8720
How to count rows?
73794
counting with max and min restrictions
149518
Adding counts of a factor to a dataframe
2628
Counting number of moves on a grid
6679
Counting number of subsets which contain a specific element
145189
Statistical test for comparing two frequencies with R