index f35e0cd4f6d6bd0876d2eb5161b0ae1efb4700d8..ac661a9a85c0abc5dad8d64c3c8cdf0982745c74 100644 (file)
=item B<-x>|B<--x-grid> I<x-axis grid and label> (default autoconfigure)
The x-axis label is quite complex to configure. So if you don't have
-very special needs, you can rely on the autoconfiguration to get this
+very special needs, you can rely on the auto configuration to get this
right.
If you want no x-grid at all, use the magic setting B<none>.
=item B<-y>|B<--y-grid> I<grid step>:I<label factor> (default autoconfigure)
Makes vertical grid lines appear at I<grid step> interval. Every
-I<label factor> gridstep, a major grid line is printed, along with
+I<label factor> grid step, a major grid line is printed, along with
label showing the value of the grid line.
If you want no y-grid at all set specify the magic word B<none>.
=item B<-v>|B<--vertical-label> I<text>
-vertical label on the left side of the graph. This is normally used to
+Vertical label on the left side of the graph. This is normally used to
specify the units used.
=item B<-w>|B<--width> I<pixels> (default 400 pixel)
By default rrdgraph calculates the width of one pixel in the time domain and
tries to get data at that resolution from the RRD. With this switch you can
-override this behaviour. If you want rrdgraph to get data at 1 hour
+override this behavior. If you want rrdgraph to get data at 1 hour
resolution from the RRD, then you can set the step to 3600 seconds. Note,
that a step smaller than 1 pixel will be silently ignored.
=item +, -, *, /, %
-pops two values from the stack applies the selected operator and pushes
+Pops two values from the stack applies the selected operator and pushes
the result back onto the stack. The % operator stands for the modulo
operation.
=item SIN, COS, LOG, EXP, FLOOR, CEIL
-pops one value from the stack, applies the selected function and pushes
+Pops one value from the stack, applies the selected function and pushes
the result back onto the stack.
=item LT, LE, GT, GE, EQ
-pops two values from the stack, compares them according to the selected
+Pops two values from the stack, compares them according to the selected
condition and pushes either 1 back onto the stack if the condition is true
and 0 if the condition was not true.
=item IF
-pops three values from the stack. If the last value is not 0, the
+Pops three values from the stack. If the last value is not 0, the
second value will be pushed back onto the stack, otherwise the
first value is pushed back.
=item MIN, MAX
-selects the lesser or larger of the two top stack values respectively
+Selects the lesser or larger of the two top stack values respectively
=item LIMIT
-replaces the value with I<*UNKNOWN*> if it is outside the limits specified
+Replaces the value with I<*UNKNOWN*> if it is outside the limits specified
by the two values above it on the stack.
CDEF:a=alpha,0,100,LIMIT