1. 2019-04-27 Re: [R] Sequential Filtering of a Data Set r-help Lorenzo Isella 2. 2019-04-27 Re: [R] Sequential Filtering of a Data Set r-help Ek Esawi 3. 2019-04-26 Re: [R] Sequential Filtering of a Data Set r-help Rui Barradas 4. 2019-04-26 [R] Sequential Filtering of a Data Set r-help Lorenzo Isella