Axis.setLinearScale

ChartDirector Ver 3.1 (PHP Edition Edition)

Axis.setLinearScale

Usage

setLinearScale(lowerLimit, upperLimit[, majorTickInc[, minorTickInc ]])

Description

Set the axis to use the given linear scale.

Arguments

Argument	Default	Description
lowerLimit	(Mandatory)	The lower bound of the axis.
upperLimit	(Mandatory)	The upper bound of the axis.
majorTickInc	0	Add major ticks to the axis, where the major ticks are separated by majorTickInc in value. Each major tick will have an associated text label for the value if the axis at the tick. The default value of 0 means the major ticks will be automatically determined. In this case, the lowerLimit and upperLimit may be automatically adjusted to align with the ticks. Use NoValue to disable major ticks.
minorTickInc	0	Add minor ticks to the axis, where the minor ticks are separated by minorTickInc in value. The default value of 0 means no minor tick is used.

Return Value

None

t the label should be associated with a minor tick and no tick at all.

If you have a label that begins with '-' or '~', and you do not want it to be interpreted as special characters, add '\' as the first character of the label.

In some cases, it may be desirable to skip some labels (e.g. draw one label per five data points). If you want to draw a major tick without any labels, use a space character " " as the label. If you want to draw a minor tick without any labels, use "-" as the label. If you want to leave a label position empty without a tick or a label, use an empty string.

Arguments

Argument	Default	Description
text	(Mandatory)	An array of strings containing the text of the labels.

Return Value

A TextBox object that represents the prototype of the axis labels. You may use the methods of this object to fine-tune the appearance of the axis labels.

artDirector test the "too small" condition using the formula:

maxDataValue * zeroAffinity < minDataValue

where zeroAffinity by default is 0.8.

Similar "zero affinity" mechanism applies to the top end of the axis for a purely negative axis. If the data range contains both positive and negative values, the zero point is always included.

The zeroAffinity argument of the setAutoScale method allows you to modify the zero affinity when performing auto-scaling. Zero affinity should be between 0 and 1. A large value encourages ChartDirector to start the axis from zero.

A zero affinity of 1 means the axis always includes the zero point. A zero affinity of 0 means that the axis is scaled purely according to the data range, without any preference for the zero point.

Note that zero affinity is ignored for log scale axis as log scale axis cannot contain 0.

Arguments

Argument	Default	Description
topExtension	0.1	The top portion of the axis that no data point should fall into. For example, a value of 0.2 means no data value will fall within the top 20% of the axis. The topExtension must be between 0 to 1.
bottomExtension	0.1	The bottom portion of the axis that no data point should fall into. For example, a value of 0.2 means no data value will fall within the bottom 20% of the axis. The bottomExtension must be between 0 to 1.
zeroAffinity	0.8	The tendency of ChartDirector to include zero in the axis during auto-scaling. The value must be between 0 and 1. A large value encourages ChartDirector to start the axis from zero. A value of 1 means the axis always includes the zero point. A value of 0 means there is no preference for the zero point during auto-scaling.

Return Value

None

tr>movMed(Self)Replace each element of the ArrayMath object by its moving median.movPercentile(Self)Replace each element of the ArrayMath object by its moving percentile.movMax(Self)Replace each element of the ArrayMath object by its moving maximum.movMin(Self)Replace each element of the ArrayMath object by its moving minimum.movStdDev(Self)Replace each element of the ArrayMath object by its moving standard deviation.movCorr(Self)Replace each element of the ArrayMath object by the moving correlation with another array or with itself.lowess(Self)Fit a curve through the data points in the ArrayMath object using the LOWESS algorithm.lowess2(Self)Fit a curve through the data points in the ArrayMath object using the LOWESS algorithm, where the spacing of the data points is supplied by the given array.result(Self)Get the content of the ArrayMath object as a normal array to be used in other ChartDirector API.max(Self)Get the maximum value of the elements of the ArrayMath object.min(Self)Get the minimum value of the elements of the ArrayMath object.avg(Self)Get the average value of the elements of the ArrayMath object.sum(Self)Get the total value of the elements of the ArrayMath object.med(Self)Get the median value of the elements of the ArrayMath object.percentile(Self)Get the required percentile value of the elements of the ArrayMath object.maxIndex(Self)Get the index of the maximum value element of the ArrayMath object.minIndex(Self)Get the index of the minimum value element of the ArrayMath object.

(1059, '1999-03-01', '371', '635', '722');