'R--Filter Dynamically for 10 Quarters

I'd like to filter the following dataset for 10 quarters starting at Q1 2021:

structure(list(Year = c(2002, 2002, 2002, 2002, 2002, 2002, 2002, 
2002, 2002, 2002, 2002, 2002, 2002, 2002, 2002, 2002, 2002, 2002, 
2002, 2002, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 
2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 2003, 
2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 
2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2004, 2005, 2005, 
2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 2005, 
2005, 2005, 2005, 2005, 2005, 2005, 2005, 2006, 2006, 2006, 2006, 
2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 2006, 
2006, 2006, 2006, 2006, 2006, 2007, 2007, 2007, 2007, 2007, 2007, 
2007, 2007, 2007, 2007, 2007, 2007, 2007, 2007, 2007, 2007, 2007, 
2007, 2007, 2007, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 
2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 2008, 
2008, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 
2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2010, 
2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 
2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2011, 2011, 2011, 
2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 
2011, 2011, 2011, 2011, 2011, 2011, 2012, 2012, 2012, 2012, 2012, 
2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 
2012, 2012, 2012, 2012, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 
2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 
2013, 2013, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 
2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 
2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 
2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2015, 2016, 2016, 
2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 2016, 
2016, 2016, 2016, 2016, 2016, 2016, 2016, 2017, 2017, 2017, 2017, 
2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 2017, 
2017, 2017, 2017, 2017, 2017, 2018, 2018, 2018, 2018, 2018, 2018, 
2018, 2018, 2018, 2018, 2018, 2018, 2018, 2018, 2018, 2018, 2018, 
2018, 2018, 2018, 2019, 2019, 2019, 2019, 2019, 2019, 2019, 2019, 
2019, 2019, 2019, 2019, 2019, 2019, 2019, 2019, 2019, 2019, 2019, 
2019, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 
2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 
2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2020, 2021, 2021, 
2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 
2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 
2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 
2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2021, 2022, 
2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 
2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 
2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 2022, 
2022, 2022, 2022, 2022, 2022, 2022, 2023, 2023, 2023, 2023, 2023, 
2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 
2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 
2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023, 
2023, 2023, 2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024, 
2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024), Quarter = c(1, 
1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 
1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 
1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 
1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 
2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 
2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 
2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 
2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 
2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 
3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 
3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 
3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 
3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 
3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 
4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 
4, 4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 
4, 4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 
4, 4, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 
3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 
1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 
3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 
2, 2, 2, 2, 2, 2, 2), Name = c("Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
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"Name_1", "Name_2", "Name_3", 
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"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
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"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_4", "Name_5", "Name_1", 
"Name_2", "Name_3", "Name_4", "Name_5", 
"Name_1", "Name_2", "Name_3", 
"Name_4", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_5", "Name_1", "Name_2", 
"Name_3", "Name_5"), Interest = c(47998744, 
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Solution 1:[1]

Three ways come to mind.

  1. Simply filter.

    library(dplyr)
    filtered_data <- filter(zz, Year %in% 2021:2022 | (Year == 2023 & Quarter %in% 1:2))
    

    Demonstration that it limited to just 10 rows:

    filtered_data <- dplyr::filter(zz, Year %in% 2021:2022 | (Year == 2023 & Quarter %in% 1:2))
    count(filtered_data, Year, Quarter)
    # # A tibble: 10 x 3
    #     Year Quarter     n
    #    <dbl>   <dbl> <int>
    #  1  2021       1    15
    #  2  2021       2    10
    #  3  2021       3    10
    #  4  2021       4    10
    #  5  2022       1    10
    #  6  2022       2    10
    #  7  2022       3    10
    #  8  2022       4    10
    #  9  2023       1    10
    # 10  2023       2    10
    
  2. Left-join with a frame that includes just the years/quarters you want. This method works better than above if you have non-continuous filtering requirements.

    I_need <- tibble(Year=c(rep(2021,4),rep(2022,4),rep(2023,2)), Quarter=c(1:4,1:4,1:2))
    I_need
    # # A tibble: 10 x 2
    #     Year Quarter
    #    <dbl>   <int>
    #  1  2021       1
    #  2  2021       2
    #  3  2021       3
    #  4  2021       4
    #  5  2022       1
    #  6  2022       2
    #  7  2022       3
    #  8  2022       4
    #  9  2023       1
    # 10  2023       2
    filtered_data2 <- left_join(I_need, zz, by = c("Year", "Quarter"))
    
  3. Math wizardry, prone to all sorts of problems/mistakes/missed-assumptions.

    filtered_data2 <- filter(zz, between(Year + (Quarter-1)/4, 2021, 2023.25))
    

Sources

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Source: Stack Overflow

Solution Source
Solution 1