Clojask Types

Supported Types

string

int

double

date

datetime

string

The default type for all columns

Class: java.lang.String

Examples

(set-type dataframe "col-name" "string")

int

Most efficiently stores an integer

Class: java.lang.Integer

Examples

(set-type dataframe "col-name" "int")

double

Accepts floats and integers

Class: java.lang.Double

Examples

(set-type dataframe "col-name" "double")

date

Transform a date string (no time field)

Class: java.util.Date (default format string: yyyy-MM-dd)

Examples

;; if the date looks like this 2020/11/12
(set-type dataframe "col-name" "date:yyyy/MM/dd")

datetime

Transform a date-time string

Class: java.util.Date (default format string: yyyy-MM-dd, so give a pattern that includes the time fields)

Examples

;; if the date looks like this 2020/11/12 12:12:36
(set-type dataframe "col-name" "datetime:yyyy/MM/dd HH:mm:ss")