TuneXAutoTicks — Adjust tuning parameters for X axis tick increment calculation

$plot->TuneXAutoTicks([], [`$min_ticks`

], [`$tick_mode`

])`$tick_inc_integer`

`TuneXAutoTicks`

is used to adjust the parameters used by
PHPlot when automatically calculating the tick increment along the X axis.

`$min_ticks`

Sets the minimum number of tick intervals along the X axis. This is an integer greater than zero. See Section 4.6.8.1, “Tick Increment parameter: min_ticks” for more information.

`$tick_mode`

Selects from one of three available modes for calculating the tick increment along the X axis:

Mode Description decimal Use a power of 10 times 1, 2, or 5 binary Use a power of 2 date Use a date/time value See Section 4.6.8.2, “Tick Increment parameter: tick_mode” for more information.

`$tick_inc_integer`

If TRUE, forces PHPlot to pick a whole number (integer) tick increment. If FALSE, allows fractional tick increments. See the Section 4.6.8.3, “Tick Increment parameter: tick_inc_integer” for more information.

Specifying `NULL`

, or omitting trailing unused parameters,
results in no change to that parameter.

If the tick increment is set with SetXTickIncrement or
indirectly with SetNumXTicks, then PHPlot does not need
to calculate the tick increment, and the parameters set with
`TuneXAutoTicks`

are not used.

This applies to the X axis only, where X is the independent variable for vertical plots, and the dependent variable for horizontal plots. See also TuneYAutoTicks.

See Section 4.6.7, “Automatic Tick Increment Calculation” for more information on the tick increment calculations and parameters.

The default for `min_ticks`

is 8.
The maximum number of tick intervals is about 2.5 times the minimum number.

The default for `tick_mode`

depends on the label formatting
type along the X axis. If SetXLabelType('time') is used to
select date/time formatting of labels, then the default for tick_mode is
`'date'`

, otherwise it is `'decimal'`

.

The default for `tick_inc_integer`

is FALSE, meaning PHPlot
may use fractional tick increments. (Note this does not mean a tick
increment such as 2.5 would ever be selected. PHPlot uses whole numbers
above 1 and fractional increments between 0 and 1.)

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