First take a look at your data and understand its structure. What you have
is a named vector and not a matrix:
> str(x)
Named num [1:213] 2.58 1.73 3.43 2.19 1.93 ...
- attr(*, "names")= chr [1:213] "1799" "1800" "1801" "1802" ...
> x1 <- x[names(x) > '1820']
> x1
1821 1822 1823 1824 1825 1826 1827 1828 1829 1830
1831 1832 1833 1834
1.4250 1.0990 1.0070 1.1795 1.3855 1.4065 1.1380 1.5140 1.4605 1.7560
1.4165 1.2200 1.8250 1.8365
1835 1836 1837 1838 1839 1840 1841 1842 1843 1844
1845 1846 1847 1848
1.8100 1.8180 2.1085 2.2330 2.5605 2.2850 2.8210 2.1600 1.9140 1.7470
2.0310 1.8470 1.7715 1.7925
1849 1850 1851 1852 1853 1854 1855 1856 1857 1858
1859 1860 1861 1862
1.6510 1.4345 1.2910 1.9895 1.9900 1.7300 1.9120 1.7760 1.5960 1.6915
1.8245 1.7730 2.1730 2.2345
1863 1864 1865 1866 1867 1868 1869 1870 1871 1872
1873 1874 1875 1876
On Tue, Mar 12, 2013 at 1:50 PM, catalin roibu <catalinro...@gmail.com>wrote:
> Hello all!
> I have a problem to extract values greater that for example 1820.
> I try this code: x[x[,1]>1820,]->x1
> Please help me!
>
> Thank you!
>
> The data structure is:
> structure(c(2.576, 1.728, 3.434, 2.187, 1.928, 1.886, 1.2425,
> 1.23, 1.075, 1.1785, 1.186, 1.165, 1.732, 1.517, 1.4095, 1.074,
> 1.618, 1.677, 1.845, 1.594, 1.6655, 1.1605, 1.425, 1.099, 1.007,
> 1.1795, 1.3855, 1.4065, 1.138, 1.514, 1.4605, 1.756, 1.4165,
> 1.22, 1.825, 1.8365, 1.81, 1.818, 2.1085, 2.233, 2.5605, 2.285,
> 2.821, 2.16, 1.914, 1.747, 2.031, 1.847, 1.7715, 1.7925, 1.651,
> 1.4345, 1.291, 1.9895, 1.99, 1.73, 1.912, 1.776, 1.596, 1.6915,
> 1.8245, 1.773, 2.173, 2.2345, 2.105, 1.922, 1.802, 1.6385, 1.6545,
> 2.1785, 1.868, 2.1855, 2.5175, 2.025, 2.435, 1.809, 1.628, 1.327,
> 1.3485, 1.4335, 2.052, 2.2465, 2.151, 1.7945, 1.79, 1.6055, 1.616,
> 1.633, 1.665, 2.002, 2.152, 1.736, 1.7985, 1.9155, 1.7135, 1.548,
> 1.568, 1.713, 2.079, 1.875, 2.12, 2.072, 1.906, 1.4645, 1.3025,
> 1.407, 1.5445, 1.437, 1.463, 1.5235, 1.609, 1.738, 1.478, 1.573,
> 1.0465, 1.429, 1.632, 1.814, 1.933, 1.63, 1.482, 1.466, 1.4025,
> 1.6055, 1.279, 1.827, 1.201, 1.425, 1.678, 1.5535, 1.599, 1.826,
> 1.964, 1.68, 1.492, 1.509, 1.666, 1.5665, 1.666, 1.4885, 1.8205,
> 1.5965, 1.84, 1.551, 1.4835, 1.805, 1.7145, 1.902, 1.2085, 0.9095,
> 0.9325, 1.34, 1.6135, 1.5825, 1.757, 1.7105, 1.3115, 1.288, 1.567,
> 1.7795, 1.642, 1.4375, 1.4495, 1.4225, 1.4885, 1.251, 1.179,
> 1.188, 1.3605, 1.373, 1.2185, 1.405, 1.016, 0.979, 1.018, 1.0335,
> 1.39, 1.3005, 1.3955, 1.301, 1.6475, 1.1945, 1.3215, 1.0535,
> 1.1645, 1.0895, 1.041, 1.155, 1.322, 1.1615, 0.933, 1.1215, 1.022,
> 0.922, 0.8465, 1.103, 1.1375, 1.23, 1.289, 1.222, 1.4865, 1.4025,
> 1.4295, 1.156, 0.9085, 0.8755, 0.9135, 0.982, 1.145, 1.1295,
> 1.3475, 1.2415, 1.2505), .Names = c("1799", "1800", "1801", "1802",
> "1803", "1804", "1805", "1806", "1807", "1808", "1809", "1810",
> "1811", "1812", "1813", "1814", "1815", "1816", "1817", "1818",
> "1819", "1820", "1821", "1822", "1823", "1824", "1825", "1826",
> "1827", "1828", "1829", "1830", "1831", "1832", "1833", "1834",
> "1835", "1836", "1837", "1838", "1839", "1840", "1841", "1842",
> "1843", "1844", "1845", "1846", "1847", "1848", "1849", "1850",
> "1851", "1852", "1853", "1854", "1855", "1856", "1857", "1858",
> "1859", "1860", "1861", "1862", "1863", "1864", "1865", "1866",
> "1867", "1868", "1869", "1870", "1871", "1872", "1873", "1874",
> "1875", "1876", "1877", "1878", "1879", "1880", "1881", "1882",
> "1883", "1884", "1885", "1886", "1887", "1888", "1889", "1890",
> "1891", "1892", "1893", "1894", "1895", "1896", "1897", "1898",
> "1899", "1900", "1901", "1902", "1903", "1904", "1905", "1906",
> "1907", "1908", "1909", "1910", "1911", "1912", "1913", "1914",
> "1915", "1916", "1917", "1918", "1919", "1920", "1921", "1922",
> "1923", "1924", "1925", "1926", "1927", "1928", "1929", "1930",
> "1931", "1932", "1933", "1934", "1935", "1936", "1937", "1938",
> "1939", "1940", "1941", "1942", "1943", "1944", "1945", "1946",
> "1947", "1948", "1949", "1950", "1951", "1952", "1953", "1954",
> "1955", "1956", "1957", "1958", "1959", "1960", "1961", "1962",
> "1963", "1964", "1965", "1966", "1967", "1968", "1969", "1970",
> "1971", "1972", "1973", "1974", "1975", "1976", "1977", "1978",
> "1979", "1980", "1981", "1982", "1983", "1984", "1985", "1986",
> "1987", "1988", "1989", "1990", "1991", "1992", "1993", "1994",
> "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002",
> "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010",
> "2011"))
>
>
> --
> ---
> Catalin-Constantin ROIBU
> Forestry engineer, PhD
> Forestry Faculty of Suceava
> Str. Universitatii no. 13, Suceava, 720229, Romania
> office phone +4 0230 52 29 78, ext. 531
> mobile phone +4 0745 53 18 01
> +4 0766 71 76 58
> FAX: +4 0230 52 16 64
> silvic.usv.ro
>
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>
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.
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