Rounding in axis labels

[kbroman]

I had an iplot() plot where the x-axis limits were like 0.35, 0.4, 0.45, 0.5, but they showed up as 0.3, 0.4, 0.4, 0.5.

[kbroman]

the y-axis label on the example for the scat2scat function has this problem. should be like -1, -0.5, 0, 0.5, 1, but comes up as -1, -1, 0, 1, 1