Axis
The term is applied for the axis of a graph. The horizontal axis is the x-axis, the vertical y-axis and the z-axis is a possible third axis used for three-dimensional graphing. Each axis possesses a unit and sizing markers. Axis properties can be customized in the preferences dialogs:
Units
In general, all known units can be used with any axis in a data set. However, in most cases the x-axis is used as data point axis, whereas the y- and/or z-axis are used as intensity axes. If any unknown unit is provided by an axis, the arbitrary unit is applied automatically.
The following units are known to the software:
| Unit | Unit |
|---|---|
| Unit | Unit |
| Arbitrary | Centimeter |
| Absorbance | Millimeter |
| Transmittance | Micrometer |
| PercentTransmittance | Nanometer |
| Energy | DegreeCelsius |
| Percent | DegreeKelvin |
| Logarithmic | DegreeFahrenheit |
| Photoacoustic | Points |
| Reflectance | Counts |
| ElectronVolt | RelativeWavenumber |
| Volt | GigaHertz |
| Millivolt | KiloHertz |
| Wavenumber | MegaHertz |
| Year | Hertz |
| Day | PartsPerMillion |
| Hour | MassUnits |
| Minute | Mol |
| Second | Millimol |
| Millisecond | Emission |
| MicroSecond | FractionNumber |
| NanoSecond | Milliampere |
| Meter | Nanoampere |
| Channel | Degree |
| Decibel | DiodeNumber |