suppress the grid and labels altogether. The default for this option is
to automatically select sensible values.
+If you have set --y-grid to 'none' not only the labels get supressed, also
+the space reserved for the labels is removed. You can still add space
+manually if you use the --units-length command to explicitly reserve space.
+
[B<-Y>|B<--alt-y-grid>]
Place the Y grid dynamically based on the graph's Y range. The algorithm
may have to use this option to make enough space once you start
fideling with the y-axis labeling.
+[B<--units=si>]
+
+With this option y-axis values on logarithmic graphs will be scaled to
+the appropriate units (k, M, etc.) instead of using exponential notation.
+Note that for linear graphs, SI notation is used by default.
+
=back
=item Miscellaneous
should be set to 1024 so that one Kb is 1024 byte. For traffic
measurement, 1 kb/s is 1000 b/s.
+[B<-W>|B<--watermark> I<string>]
+
+Adds the given string as a watermark, horizontally centred, at the bottom
+of the graph.
+
=item Data and variables
B<DEF:>I<vname>B<=>I<rrdfile>B<:>I<ds-name>B<:>I<CF>[B<:step=>I<step>][B<:start=>I<time>][B<:end=>I<time>]
=head1 AUTHOR
-Program by Tobias Oetiker E<lt>oetiker@ee.ethz.chE<gt>
+Program by Tobias Oetiker E<lt>tobi@oetiker.chE<gt>
This manual page by Alex van den Bogaerdt E<lt>alex@ergens.op.het.netE<gt>