Extracts one or more tree-ring series (columns) from a data frame of class "rwl".
Optionally adds the rownames (assumed to be years) as a column.
Arguments
- x
A
data.frameof class"rwl", where each column is a tree-ring width series and rownames represent years.- series
A character string or vector specifying the name(s) of the series (columns) to extract.
- rownames_to_years
Logical. If
TRUE, the rownames ofx(years) are added as a column namedyears.- trim
Logical. If
TRUE, leading and trailing all-NA rows are removed usingtrs_trim().
Value
A data.frame with the selected series. If rownames_to_years = TRUE, the result will have an additional year column.
If trim = TRUE, leading and trailing all-NA rows are removed. If a single series is selected, returns a single-column data frame.
Examples
rwl <- trs_pseudo_rwl(n_series = 5, series_length = 60, end_date = 2000)
# Select single series
trs_select(rwl, series = "trs_1")
#> trs_1
#> 1941 118
#> 1942 105
#> 1943 100
#> 1944 85
#> 1945 90
#> 1946 85
#> 1947 94
#> 1948 88
#> 1949 90
#> 1950 90
#> 1951 82
#> 1952 103
#> 1953 100
#> 1954 99
#> 1955 95
#> 1956 99
#> 1957 98
#> 1958 96
#> 1959 109
#> 1960 107
#> 1961 103
#> 1962 97
#> 1963 90
#> 1964 99
#> 1965 96
#> 1966 87
#> 1967 100
#> 1968 87
#> 1969 83
#> 1970 93
#> 1971 91
#> 1972 98
#> 1973 106
#> 1974 105
#> 1975 106
#> 1976 106
#> 1977 102
#> 1978 93
#> 1979 92
#> 1980 88
#> 1981 81
#> 1982 91
#> 1983 87
#> 1984 105
#> 1985 79
#> 1986 89
#> 1987 90
#> 1988 100
#> 1989 101
#> 1990 107
#> 1991 110
#> 1992 114
#> 1993 107
#> 1994 104
#> 1995 91
#> 1996 98
#> 1997 107
#> 1998 88
#> 1999 89
#> 2000 92
trs_select(rwl, series = "trs_2", rownames_to_years = TRUE)
#> trs_2 year
#> 1941 112 1941
#> 1942 108 1942
#> 1943 92 1943
#> 1944 90 1944
#> 1945 98 1945
#> 1946 101 1946
#> 1947 102 1947
#> 1948 92 1948
#> 1949 94 1949
#> 1950 88 1950
#> 1951 80 1951
#> 1952 95 1952
#> 1953 86 1953
#> 1954 104 1954
#> 1955 101 1955
#> 1956 106 1956
#> 1957 92 1957
#> 1958 91 1958
#> 1959 103 1959
#> 1960 107 1960
#> 1961 100 1961
#> 1962 92 1962
#> 1963 84 1963
#> 1964 86 1964
#> 1965 98 1965
#> 1966 91 1966
#> 1967 102 1967
#> 1968 93 1968
#> 1969 82 1969
#> 1970 96 1970
#> 1971 99 1971
#> 1972 100 1972
#> 1973 103 1973
#> 1974 105 1974
#> 1975 103 1975
#> 1976 93 1976
#> 1977 98 1977
#> 1978 87 1978
#> 1979 89 1979
#> 1980 87 1980
#> 1981 79 1981
#> 1982 83 1982
#> 1983 80 1983
#> 1984 103 1984
#> 1985 88 1985
#> 1986 100 1986
#> 1987 105 1987
#> 1988 111 1988
#> 1989 107 1989
#> 1990 106 1990
#> 1991 110 1991
#> 1992 112 1992
#> 1993 107 1993
#> 1994 97 1994
#> 1995 86 1995
#> 1996 98 1996
#> 1997 97 1997
#> 1998 73 1998
#> 1999 73 1999
#> 2000 83 2000
# Select multiple series
trs_select(rwl, series = c("trs_1", "trs_2"))
#> trs_1 trs_2
#> 1941 118 112
#> 1942 105 108
#> 1943 100 92
#> 1944 85 90
#> 1945 90 98
#> 1946 85 101
#> 1947 94 102
#> 1948 88 92
#> 1949 90 94
#> 1950 90 88
#> 1951 82 80
#> 1952 103 95
#> 1953 100 86
#> 1954 99 104
#> 1955 95 101
#> 1956 99 106
#> 1957 98 92
#> 1958 96 91
#> 1959 109 103
#> 1960 107 107
#> 1961 103 100
#> 1962 97 92
#> 1963 90 84
#> 1964 99 86
#> 1965 96 98
#> 1966 87 91
#> 1967 100 102
#> 1968 87 93
#> 1969 83 82
#> 1970 93 96
#> 1971 91 99
#> 1972 98 100
#> 1973 106 103
#> 1974 105 105
#> 1975 106 103
#> 1976 106 93
#> 1977 102 98
#> 1978 93 87
#> 1979 92 89
#> 1980 88 87
#> 1981 81 79
#> 1982 91 83
#> 1983 87 80
#> 1984 105 103
#> 1985 79 88
#> 1986 89 100
#> 1987 90 105
#> 1988 100 111
#> 1989 101 107
#> 1990 107 106
#> 1991 110 110
#> 1992 114 112
#> 1993 107 107
#> 1994 104 97
#> 1995 91 86
#> 1996 98 98
#> 1997 107 97
#> 1998 88 73
#> 1999 89 73
#> 2000 92 83
trs_select(rwl, series = c("trs_1", "trs_3", "trs_5"), rownames_to_years = TRUE)
#> trs_1 trs_3 trs_5 year
#> 1941 118 112 117 1941
#> 1942 105 111 117 1942
#> 1943 100 98 109 1943
#> 1944 85 96 101 1944
#> 1945 90 96 113 1945
#> 1946 85 92 97 1946
#> 1947 94 105 100 1947
#> 1948 88 99 88 1948
#> 1949 90 97 91 1949
#> 1950 90 97 84 1950
#> 1951 82 87 77 1951
#> 1952 103 106 94 1952
#> 1953 100 99 90 1953
#> 1954 99 111 105 1954
#> 1955 95 107 102 1955
#> 1956 99 112 112 1956
#> 1957 98 104 91 1957
#> 1958 96 96 91 1958
#> 1959 109 110 99 1959
#> 1960 107 119 110 1960
#> 1961 103 114 107 1961
#> 1962 97 96 101 1962
#> 1963 90 93 105 1963
#> 1964 99 99 115 1964
#> 1965 96 101 106 1965
#> 1966 87 95 89 1966
#> 1967 100 110 101 1967
#> 1968 87 106 93 1968
#> 1969 83 94 87 1969
#> 1970 93 106 97 1970
#> 1971 91 105 103 1971
#> 1972 98 110 107 1972
#> 1973 106 104 110 1973
#> 1974 105 100 106 1974
#> 1975 106 100 101 1975
#> 1976 106 96 96 1976
#> 1977 102 105 102 1977
#> 1978 93 97 90 1978
#> 1979 92 97 94 1979
#> 1980 88 88 92 1980
#> 1981 81 81 84 1981
#> 1982 91 85 83 1982
#> 1983 87 83 81 1983
#> 1984 105 97 97 1984
#> 1985 79 85 77 1985
#> 1986 89 96 90 1986
#> 1987 90 107 103 1987
#> 1988 100 107 117 1988
#> 1989 101 112 111 1989
#> 1990 107 117 115 1990
#> 1991 110 116 113 1991
#> 1992 114 120 110 1992
#> 1993 107 116 109 1993
#> 1994 104 108 103 1994
#> 1995 91 97 89 1995
#> 1996 98 107 94 1996
#> 1997 107 108 101 1997
#> 1998 88 85 76 1998
#> 1999 89 86 74 1999
#> 2000 92 101 88 2000