# How to make DataVoyager recognize a variable as temporal?

**URL:** <https://discourse.julialang.org/t/how-to-make-datavoyager-recognize-a-variable-as-temporal/54982>\
**Category:** Data\
**Tags:** question\
**Created:** [February 10, 2021, 11:13am UTC](https://discourse.julialang.org/t/how-to-make-datavoyager-recognize-a-variable-as-temporal/54982 "2021-02-10T11:13:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![LinusSch](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/linussch/32/218134_2.png) [@LinusSch](https://discourse.julialang.org/u/LinusSch)\
**Post date:** [February 10, 2021, 11:13am UTC](https://discourse.julialang.org/t/how-to-make-datavoyager-recognize-a-variable-as-temporal/54982/1 "2021-02-10T11:13:24Z")

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In David Anthoff’s “Intro to the Queryverse”, at 9:30 ( [Intro to the Queryverse, a Julia data science stack | David Anthoff - YouTube](https://youtu.be/OFPNph-WxLM?t=570) ), he passes a dataset to `voyager()` (from DataVoyager.jl) and one of the variables is recognized as a measure of time. I wonder why, what about the data tells `voyager()` that this is indeed time?

I have a dataset with one column named “Year”, wherein the year is stored as an integer. This is not automatically recognized and I wonder what is the most sensible transformation of this that can get recognized as temporal by `voyager()`.