This drop-down list can be used to select an X scale type. Options are:

Linear

Standard linear scale, where X'=X.

Log10

Base 10 logarithmic scale, where X'=log(X).

Probability

Represents the inverse of a cumulative Gaussian distribution: X'=norminv(X/100). Plotting a cumulative Gaussian distribution produces a sigmoidally-shaped curve. This curve, when displayed on a probability scale, appears as a straight line. Since probabilities are expressed as percentages, all values must fall between 0 and 100. The probability scale range is 0.0001 to 99.999.

Probit

Like the probability scale, a sigmoidally-shaped curve plots as a straight line. In this case, however, the scale is linear, and the increment between tick marks is exactly one standard deviation. The value "5" on the scale shows the mean, or 50% probability. "6" is one standard deviation away, etc.

Reciprocal

Reciprocal scale, where X'=1/X.

Offset Reciprocal

Offset reciprocal scale, where X'=1/(X+offset). Offset is defined as 273.14, where 273.14 is the absolute temperature for 0° C.

Logit

Logit=ln(Y/(100-Y)). As with the probability and probit scales, a sigmoidally shaped curve plots as a straight line.

Natural Log

ln, base e logarithmic scale.

Log2

Base 10 logarithmic scale.

Y Scale

This drop-down list can be used to change the Y scale type. The options in this drop-down list are the same as the ones in the X Scale drop-down list.

Bottom

This branch can be used to modify the bottom X axis.

Axis

Specify whether to show the bottom axis.

Tick

This drop-down list is available only when the Axis check box is selected. It can be used to specify the display of ticks on the axis:

In & Out

Show the ticks that point inward and also those that point outward.

In

Show only the ticks that point inward.

Out

Show only the ticks that point outward.

None

Do not show any ticks.

Title

Specify whether to show the title of the bottom axis.

Tick Label

Specify whether to show the tick labels of the bottom axis.

Formula

Specify a formula to calculate a numeric vector which will be used as the tick labels of the axis. Note that the calculation will not affect the source data.

Left

This branch can be used to modify the left Y axis. The options are the same as the ones in Bottom branch.

Top

This branch can be used to modify the top X axis. The options are the same as the ones in Bottom branch.

Right

This branch can be used to modify the right Y axis. The options are the same as the ones in Bottom branch.

Apply

When this button is clicked, the Modify Axes settings will be applied to the preview graphs.