r - How do I make the x axis start at a fixed point rather than start at 0? -


i haven't used r before , have assessment intro stats class. have found data , need plot it. plotting years categories against litres of alcohol consumed population each year. data looks bit this:

  year       litres   per capita  1960-61    67,703    9.34  1961-62    69,408    9.38  1962-63    71,657    9.47  1963-64    75,590    9.79  1964-65    79,674    10.10  1965-66    80,866    10.00  1966-67    85,015    10.29  1967-68    90,946    10.78  1968-69    95,782    11.12  1969-70    101,951   11.58  1970-71    105,595   11.59  1971-72    109,156   11.58  1972-73    116,682   12.15

my problem in trying plot it, it's not coming @ how need to. i'm struggling few things , feel i'm doing things long/hard way. i've done far:

> view(alcohol_consumption_2013_14) > year <- alcohol_consumption_2013_14$year > litres <- alcohol_consumption_2013_14$`litres pure alcohol` > capita <- alcohol_consumption_2013_14$`per capita consumption` > x=c(year) > y=c(litres) > plot(x,y)   error in plot.window(...) : need finite 'xlim' values   in addition: warning messages:   1: in xy.coords(x, y, xlabel, ylabel, log) : nas introduced coercion   2: in min(x) : no non-missing arguments min; returning inf   3: in max(x) : no non-missing arguments max; returning -inf > year <- as.numeric(year)   warning message:   nas introduced coercion  > barplot(litres,year)   error in plot.window(xlim, ylim, log = log, ...) :    need finite 'xlim' values > x=c(1960-61,1961-62,1962-63,1963-64,1964-65,1965-66,1966-67,1967-68,1968-   69,1969-70,1970-71,1971-72,1972-73,1973-74,1974-75,1975-76,1976-77,1977-   78,1978-79,1979-80,1980-81,1981-82,1982-83,1983-84,1984-85,1985-86,1986-   87,1987-88,1988-89,1989-90,1990-91,1991-92,1992-93,1993-94,1994-95,1995-   96,1996-97,1997-98,1998-99,1999-2000,2000-01,2001-02,2002-03,2003-04,2004-   05,2005-06,2006-07,2007-08,2008-09,2009-10,2010-11,2011-12,2012-13,2013-14) > plot(x,y)

and came graph starting @ 0, rather in year categories

how fix problem?

you defined x follows:

> x=c(1960-61,1961-62,1962-63,1963-64,1964-65,1965-66,1966-67,1967-68,1968-   69,1969-70,1970-71,1971-72,1972-73,1973-74,1974-75,1975-76,1976-77,1977-   78,1978-79,1979-80,1980-81,1981-82,1982-83,1983-84,1984-85,1985-86,1986-   87,1987-88,1988-89,1989-90,1990-91,1991-92,1992-93,1993-94,1994-95,1995-   96,1996-97,1997-98,1998-99,1999-2000,2000-01,2001-02,2002-03,2003-04,2004-   05,2005-06,2006-07,2007-08,2008-09,2009-10,2010-11,2011-12,2012-13,2013-14)

this vector of equations: 1960-61 = 1899, 1961-62=1899, ..., 1999-2000 = -1, 2000-01 = 1999, ... 2013-14 = 1999.

as result, plot has 1 point @ x = -1, bunch of points @ x = 1899, , bunch @ x = 1999.

try following instead? it's not optimal code, it's close have, should easy understand:

# year & litres should based on dataset. no manipulation needed. year <- alcohol_consumption_2013_14$year litres <- alcohol_consumption_2013_14$`litres pure alcohol`  barplot(litres, names.arg = year) plot(factor(year), litres)

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