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lower( ) -> FrozenSeries


Converts each string element to lower case.


  • FrozenSeries
    A new Column or Feature object.


Convert the BrowserUserAgent column to lower case:

>>> view = catalog.get_view("GROCERYCUSTOMER")
>>> view["BrowserUserAgentLower"] = view["BrowserUserAgent"].str.lower()
>>> view.preview(5).filter(regex="BrowserUserAgent")
                                    BrowserUserAgent                              BrowserUserAgentLower
0  Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.3...  mozilla/5.0 (windows nt 6.1) applewebkit/537.3...
1  Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:6...  mozilla/5.0 (windows nt 10.0; win64; x64; rv:6...
2  Mozilla/5.0 (Windows NT 10.0; Win64; x64) Appl...  mozilla/5.0 (windows nt 10.0; win64; x64) appl...
3  Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4...  mozilla/5.0 (macintosh; intel mac os x 10_14_4...
4  Mozilla/5.0 (Windows NT 6.1; Win64; x64) Apple...  mozilla/5.0 (windows nt 6.1; win64; x64) apple...