histogram! ( hashtable seq -- hashtable ) (original) (raw)
Vocabulary
math.statistics
Inputs
| hashtable | a hashtable |
|---|---|
| seq | a sequence |
Outputs
| hashtable | a hashtable |
|---|
Word description
Takes an existing hashtable and uses histogram to continue counting the number of occurrences of each element.
Examples
! Count the number of times the elements of two sequences appear. USING: prettyprint math.statistics ; "aaabc" histogram "aaaaaabc" histogram! .
H{ { 97 9 } { 98 2 } { 99 2 } }
Definition
: histogram! ( hashtable seq -- hashtable )
[ ] histogram-by! ; inline