SVGGraph options: best_fit_combined_range
- Option name:
best_fit_combined_range- Default value:
NULL- Added in version:
- 3.20.4
- Data type:
- array [?]
The datatypes used in this documentation for specifying SVGGraph options are described below. All options can be a literal value of the data type described, a variable containing the data type, or an expression that will produce the data type when evaluated (and they must always be valid PHP expressions).
- array
- An
array, the number and data types of its members will depend on the option for which is it used. - boolean
- A boolean
TRUEorFALSEvalue, or any values that convert easily such as1,"1",0and"". - callback
- A callable function, which can be either the name of a function or an anonymous function itself.
- colour
- Any of the colour values supported by SVG inside a single or double
quoted string. These include three and six digit hex codes, RGB and
RGBA colours, and colour names. SVG uses
"none"for no colour, which generally leaves things transparent. - fill
- A colour value or one of the gradients and patterns supported by SVGGraph. See the SVGGraph colours page for details.
- integer
- A negative or positive whole number or
0. - measurement
- An
integerorfloatvalue, or a string containing a number followed by one of these CSS units:px,in,cm,mm,pt,pc. - number
- Any number supported by PHP, for example
1or-3.2or1.63e5orM_PI. - string
- Single or double quoted strings. Remember to double-quote your strings
if you are inserting a line break:
"Line 1\nLine 2".
- Per-dataset:
- no
- Supported by:
- BarAndLineGraph LineGraph MultiLineGraph MultiScatterGraph MultiSteppedLineGraph ScatterGraph StackedBarAndLineGraph StackedLineGraph SteppedLineGraph
- Tags:
Range for combined best-fit line.
This option specifies a range of X-axis values for the combined best-fit or trend line. The value of the option must be an array containing the start and end values of the range:
$settings['best_fit_combined_range'] = array(3, 10);
This example will calculate the line that best fits the values from all
datasets between 3 and 10 on the X-axis. The line will be drawn starting at X =
3 and ending at X = 10 (unless you use the best_fit_combined_project option
to extend the line outside the range).
To specify the edge of the grid as either end of the range, use a NULL value:
$settings['best_fit_combined_range'] = array(NULL, 10);
If the values specified are outside the range of the grid, the range is clamped to the grid edges.