[] Dendrochronology Program Library Run CRLWP Program COF 15:38 Thu 16 Mar 2000 Page 1 [] [] P R O G R A M C O F E C H A Version 5.10P 23818 ----------------------------------------------------------------------------------------------------------------------------------- QUALITY CONTROL AND DATING CHECK OF TREE-RING MEASUREMENTS File of DATED series: crmis.lwp CONTENTS: Part 1: Title page, options selected, summary, absent rings by series Part 2: Histogram of time spans Part 3: Master series with sample depth and absent rings by year Part 4: Bar plot of Master Dating Series Part 5: Correlation by segment of each series with Master Part 6: Potential problems: low correlation, divergent year-to-year changes, absent rings, outliers Part 7: Descriptive statistics RUN CONTROL OPTIONS SELECTED VALUE 1 Cubic smoothing spline 50% wavelength cutoff for filtering 32 years 2 Segments examined are 50 years lagged successively by 25 years 3 Autoregressive model applied A Residuals are used in master dating series and testing 4 Series transformed to logarithms Y Each series log-transformed for master dating series and testing 5 CORRELATION is Pearson (parametric, quantitative) Critical correlation, 99% confidence level .3281 6 Master dating series saved N 7 Ring measurements listed N 8 Parts printed 1234567 9 Absent rings are omitted from master series and segment correlations (Y) Time span of Master dating series is 1917 to 1992 76 years Continuous time span is 1917 to 1992 76 years Portion with two or more series is 1917 to 1992 76 years **************************************** *C* Number of dated series 4 *C* *O* Master series 1917 1992 76 yrs *O* *F* Total rings in all series 304 *F* *E* Total dated rings checked 304 *E* *C* Series intercorrelation .636 *C* *H* Average mean sensitivity .501 *H* *A* Segments, possible problems 0 *A* **************************************** ABSENT RINGS listed by SERIES: (See Master Dating Series for absent rings listed by year) No ring measurements of zero value PART 2: TIME PLOT OF TREE-RING SERIES: 15:38 Thu 16 Mar 2000 Page 2 ----------------------------------------------------------------------------------------------------------------------------------- Beg End 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 Ident Seq year year Yrs : : : : : : : : : : : : : : : : : : : : : -------- --- ---- ---- ---- . . . . . . . . . . . . . . . . . . .<=======>. cr01alwp 1 1917 1992 76 . . . . . . . . . . . . . . . . . . .<=======>. cr01blwp 2 1917 1992 76 . . . . . . . . . . . . . . . . . . .<=======>. cr05blwp 3 1917 1992 76 . . . . . . . . . . . . . . . . . . .<=======>. cr05alwp 4 1917 1992 76 : : : : : : : : : : : : : : : : : : : : : 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 PART 3: Master Dating Series: 15:38 Thu 16 Mar 2000 Page 3 ----------------------------------------------------------------------------------------------------------------------------------- Year Value No Ab Year Value No Ab Year Value No Ab Year Value No Ab Year Value No Ab Year Value No Ab ------------------ ------------------ ------------------ ------------------ ------------------ ------------------ 1950 .856 4 1951 1.324 4 1952 -.841 4 1953 .739 4 1954 -.394 4 1955 .835 4 1956 -1.470 4 1957 -.106 4 1958 -.881 4 1959 2.938 4 1960 -.548 4 1961 .263 4 1962 -.161 4 1963 .188 4 1964 -.787 4 1965 .662 4 1966 -.647 4 1917 -.370 4 1967 .656 4 1918 1.324 4 1968 .477 4 1919 -.597 4 1969 -1.689 4 1920 .287 4 1970 .101 4 1921 1.000 4 1971 1.575 4 1922 -1.325 4 1972 .050 4 1923 .819 4 1973 -.741 4 1924 -2.258 4 1974 1.765 4 1925 1.003 4 1975 .372 4 1926 -.696 4 1976 -1.126 4 1927 .204 4 1977 -.523 4 1928 .206 4 1978 -1.240 4 1929 .717 4 1979 -1.101 4 1930 -.217 4 1980 -1.145 4 1931 -.853 4 1981 .478 4 1932 2.117 4 1982 -.207 4 1933 .420 4 1983 .089 4 1934 -.012 4 1984 .005 4 1935 -2.319 4 1985 -.216 4 1936 1.230 4 1986 .782 4 1937 -.046 4 1987 .916 4 1938 -.232 4 1988 .528 4 1939 -1.151 4 1989 .684 4 1940 .383 4 1990 1.199 4 1941 -.710 4 1991 .685 4 1942 -.362 4 1992 -2.445 4 1943 .180 4 1944 .414 4 1945 .291 4 1946 -.101 4 1947 -1.496 4 1948 -.902 4 1949 1.151 4 ----------------------------------------------------------------------------------------------------------------------------------- PART 4: Master Bar Plot: 15:38 Thu 16 Mar 2000 Page 4 ----------------------------------------------------------------------------------------------------------------------------------- Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value 1950--------C 1951---------E 1952--c 1953--------C 1954---b 1955--------C 1956f 1957----@ 1958--d 1959----------L ---- ---- ---- ---- ---- ---- ---- ---- 1960---b 1961------A 1962----a 1963------A 1964--c 1965--------C 1966--c 1917---a 1967--------C 1918---------E 1968-------B 1919--b 1969g ---- ---- ---- ---- ---- ---- ---- ---- 1920------A 1970-----@ 1921---------D 1971----------F 1922-e 1972-----@ 1923--------C 1973--c 1924i 1974----------G 1925---------D 1975------A 1926--c 1976-e 1927------A 1977---b 1928------A 1978-e 1929--------C 1979-d ---- ---- ---- ---- ---- ---- ---- ---- 1930----a 1980-e 1931--c 1981-------B 1932----------H 1982----a 1933-------B 1983-----@ 1934-----@ 1984-----@ 1935i 1985----a 1936---------E 1986--------C 1937----@ 1987---------D 1938----a 1988-------B 1939-e 1989--------C ---- ---- ---- ---- ---- ---- ---- ---- 1940-------B 1990---------E 1941--c 1991--------C 1942---a 1992j 1943-----A 1944-------B 1945------A 1946----@ 1947f 1948--d 1949---------E PART 5: CORRELATION OF SERIES BY SEGMENTS: 15:38 Thu 16 Mar 2000 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1900 1925 1950 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 cr01alwp 1917 1992 .51 .54 .69 2 cr01blwp 1917 1992 .60 .66 .74 3 cr05blwp 1917 1992 .67 .68 .80 4 cr05alwp 1917 1992 .65 .69 .61 PART 6: POTENTIAL PROBLEMS: 15:38 Thu 16 Mar 2000 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- For each series with potential problems the following diagnostics may appear: [A] Correlations with master dating series of flagged 50-year segments of series filtered with 32-year spline, at every point from ten years earlier (-10) to ten years later (+10) than dated [B] Effect of those data values which most lower or raise correlation with master series [C] Year-to-year changes very different from the mean change in other series [D] Absent rings (zero values) [E] Values which are statistical outliers from mean for the year =================================================================================================================================== cr01alwp 1917 to 1992 76 years Series 1 [B] Entire series, effect on correlation ( .565) is: Lower 1938 -.037 1989 -.014 1939 -.013 1922 -.010 Higher 1959 .027 1974 .013 1979 .013 1992 .013 [E] Outliers 2 3.0 SD above or -4.5 SD below mean for year 1935 -4.7 SD; 1938 +3.9 SD =================================================================================================================================== cr01blwp 1917 to 1992 76 years Series 2 [B] Entire series, effect on correlation ( .645) is: Lower 1942 -.024 1975 -.023 1919 -.020 1986 -.019 Higher 1959 .026 1992 .025 1932 .015 1969 .012 =================================================================================================================================== cr05blwp 1917 to 1992 76 years Series 3 [B] Entire series, effect on correlation ( .724) is: Lower 1935 -.018 1934 -.015 1927 -.012 1942 -.011 Higher 1959 .023 1992 .018 1932 .012 1969 .009 =================================================================================================================================== cr05alwp 1917 to 1992 76 years Series 4 [B] Entire series, effect on correlation ( .611) is: Lower 1985 -.030 1943 -.020 1979 -.017 1923 -.012 Higher 1959 .032 1992 .030 1924 .017 1935 .016 [E] Outliers 1 3.0 SD above or -4.5 SD below mean for year 1985 +3.7 SD =================================================================================================================================== [*] All segments correlate highest as dated with correlation with master series over .3281 PART 7: DESCRIPTIVE STATISTICS: 15:38 Thu 16 Mar 2000 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 cr01alwp 1917 1992 76 3 0 .565 .16 .44 .086 -.161 .567 2.83 .457 -.036 1 2 cr01blwp 1917 1992 76 3 0 .645 .22 .84 .117 -.101 .485 3.18 .723 .079 1 3 cr05blwp 1917 1992 76 3 0 .724 .22 .74 .114 .028 .484 3.24 .653 .032 1 4 cr05alwp 1917 1992 76 3 0 .611 .21 .81 .121 .084 .469 3.30 .675 .041 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 304 12 0 .636 .20 .84 .110 -.037 .501 3.30 .627 .029 - = [ COFECHA CRLWPCOF ] = -