On 22-Mar-10 11:13:39, Martin Ivanov wrote:
> Dear R users,
> I need to plot to perpendicular straight lines. However, although
> I set the coefficients so that the lines are perpendicular, they
> do not look to be so in the plot. Here is a minimal working example:
>
> plot(x=c(-1, 1), y=c(-1, 1)
Hi!
You forgot to invert the slope: a perpendicular of 1/sqrt(2) should be
-sqrt(2).
Also, you should add asp=1 in the plot command to lock the aspect ratio,
otherwise the scale of both X and Y may be different according to the size
of the window:
plot(x=c(-1, 1), y=c(-1, 1),asp=1); abline(a=0, b=
Dear R users,
I need to plot to perpendicular straight lines. However, although I set the
coefficients
so that the lines are perpendicular, they do not look to be so in the plot.
Here is a minimal working example:
plot(x=c(-1, 1), y=c(-1, 1)); abline(a=0, b=1/sqrt(2)); abline(a=0,
b=-1/sqrt(2
3 matches
Mail list logo
