[R] Plot error
nsahgal at well.ox.ac.uk
Thu May 28 15:08:56 CEST 2009
I am an R amateur.
I want to plot data such that the 3 time points(a,b,c) lie on the X-axis and
the values of these times points are on Y-axis for n samples (e.g.100).
So, I have an object x, dim 100 4, it is a dataframe (when checked the
name a b c
1 0.11 1.11 0.86
2 . . .
3 . . .
so when i say:
> plot(1:3, x[,2:4], type="l") ----- I get the error below
Error in xy.coords(x, y, xlabel, ylabel, log) :
(list) object cannot be coerced to type 'double'
However if I do:
> plot(1:3, x[1,2:4], type="l") ------ It works for the 1st row, and each
> individual row BUT NOT ALL ROWS
Please could someone explain what is happening here?
I wonder if I need to use 'lines' for the remaining, BUT I have another
dataset y with same dimensions as x, which I want to plot on the same
graph/plot to see the difference between x and y.
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