[R] Extract data

[roslinazairimah zakaria]

Dear r-users,

I would like to extract year from 2009 to 2014 with the corresponding month
and rain amount.

I tried this:
aggbalok_mth[aggbalok_mth$year == 2009:2014, ]  but some of the data is
missing.

> dput(aggbalok_mth[aggbalok_mth$year == 2009:2014, ] )
structure(list(month = c(1, 7, 2, 8, 3, 9, 4, 10, 5, 11, 6, 12
), year = c(2009, 2009, 2010, 2010, 2011, 2011, 2012, 2012, 2013,
2013, 2014, 2014), x = c(424.6, 59.5, 6, 54.6, 387.9, 236.1,
160.3, 162.5, 102.8, 139.5, 293.3, 39)), .Names = c("month",
"year", "x"), row.names = c(7L, 13L, 20L, 26L, 33L, 39L, 46L,
52L, 59L, 65L, 72L, 78L), class = "data.frame")
Warning message:
In aggbalok_mth$year == 2009:2014 :
  longer object length is not a multiple of shorter object length


Here is the my data:

structure(list(month = c(7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11), year = c(2008, 2008, 2008, 2008, 2008, 2008, 2009, 2009,
2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2010,
2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010, 2010,
2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011, 2011,
2011, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012, 2012,
2012, 2012, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013, 2013,
2013, 2013, 2013, 2014, 2014, 2014, 2014, 2014, 2014, 2014, 2014,
2014, 2014, 2014, 2014, 2015, 2015, 2015, 2015, 2015, 2015, 2015,
2015, 2015, 2015, 2015), x = c(0, 168.7, 203, 149.3, 299.9, 570.7,
424.6, 52.6, 407.7, 210.3, 459.8, 249.2, 59.5, 310.4, 182.7,
433.3, 161, 560.5, 197.5, 6, 68.9, 170.4, 117, 271.2, 133.5,
54.6, 145.5, 122.5, 460.9, 708, 646.7, 58.8, 387.9, 42.9, 190.7,
133.3, 131.7, 158.4, 236.1, 412.9, 462.5, 713.8, 437.1, 140.1,
311.4, 160.3, 202.4, 58.8, 134.7, 120.4, 206.9, 162.5, 68.5,
1025.9, 229.5, 331, 9, 51.4, 102.8, 162.9, 157.2, 32.6, 103.9,
158.7, 139.5, 1371.2, 221.5, 6.1, 19.1, 11, 87.7, 293.3, 87.3,
184, 69.5, 231, 448.2, 39, 19.3, 3.9, 53.8, 141.9, 325, 53.5,
133.3, 321.1, 77.6, 156.5, 2.2)), .Names = c("month", "year",
"x"), row.names = c(NA, -89L), class = "data.frame")

Thank you very much for any help given.
-- 
*Dr. Roslinazairimah Binti Zakaria*
*Tel: +609-5492370; Fax. No.+609-5492766*

*Email: roslinazairimah at ump.edu.my <roslinazairimah at ump.edu.my>;
roslinaump at gmail.com <roslinaump at gmail.com>*
Deputy Dean (Academic & Student Affairs)
Faculty of Industrial Sciences & Technology
University Malaysia Pahang
Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia

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