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- _A_d_d _A_r_r_o_w_s _t_o _a _P_l_o_t
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- arrows(x0, y0, x1, y1, length=0.25, angle=30,
- code=2, col, lty)
-
- _V_a_l_u_e:
-
- This function is invoked for its side effect. It draws
- an arrow between the point (x0[i], y0[i]) and the point
- (x1[i],y1[i]). length gives the length of the edges of
- the arrow head (in inches) and angle specifies the
- angle from the shaft of the arrow to the edge of the
- arrow head. If code=2 an arrowhead is drawn at
- (x0[i],y0[i]) and if code=1 an arrowhead is drawn at
- (x1[i],y1[i]). If code=3 a head is drawn at both ends
- of the arrow.
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- The graphical parameters col and lty can be used to
- specify a color an line texture for the line segments
- which make up the arrows (col may be a vector).
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-