XLOGBASE

Syntax: | `SET XLOGBASE n GET XLOGBASE { n }`
Default: | `XLOGBASE = 0`

`XLOGBASE` determines whether the x-axis is to be linear or logarithmic.
`XLOGBASE` should always be `> 0`.

`XLOGBASE` | meaning
`> 1.0` | the x-axis will have a logarithmic scale. The base will be the integer part of `XLOGBASE`, except for the special case: `1.05*e > XLOGBASE > 0.95*e`, where `e` is the base of the natural logarithms, `e ≈ 2.718281828`, in which case the base will be `e`.
`≤ 1.0` | the x-axis will have a linear scale

If `XLOGBASE > 1.0`, then `XMIN` and `XMAX` are assumed to be the exponents for the minimum and maximum values on the x-axis. The maximum value displayed on the x-axis is `XLOGBASEXMAX` and the minimum value displayed on the x-axis is `XLOGBASEXMIN`. Integer exponents are always used for the axis numbering, so the x-axis may not begin and/or end on a large tic mark.

If `XLOGBASE = 10.0`, the small tic marks on the x-axis can be specified exactly with `XNSINCS`. If small tic marks are desired at the locations `j*10n`, where `2 ≤ j ≤ 9`, then set `XNSINCS = -j`. For example, if you want small tic marks at `2*10n`, `4*10n`, `5*10n`, and `8*10n`, then `SET XNSINCS = -2458`.

If `XLOGBASE ≤ 1.0`, `XMIN` and `XMAX` are the actual minimum and maximum values for the x-axis; and the x-axis always begins and ends on large tic marks.