Range extension for a single axis can be disabled by appending the noextend keyword to the corresponding range command, e.g. set autoscale noextend is a synonym for set autoscale fix. In this case the axis range limit exactly matches the coordinate of the most extreme data point. Keywords fixmin, fixmax, fix or noextend tell gnuplot to disable extension of the axis range to the next tic mark position. Noextend set autoscale noextendīy default autoscaling sets the axis range limits to the nearest tic label position that includes all the plot data. To prevent this you can explicitly link the secondary axis range to the primary axis range. This is done _before_ applying offsets or autoextending the ranges to a whole number of tics, which can cause unexpected results. When tics are displayed on second axes but no plot has been specified for those axes, x2range and y2range are inherited from xrange and yrange. autoscale in parametric mode, then, controls all ranges (t, u, v, x, y, and z) and allows x, y, and z to be fully autoscaled. In parametric mode, the independent or dummy variable is t for plots and u,v for splots. However, there are more dependent variables and hence more control over x, y, and z axis scales. The behavior of autoscaling remains consistent in parametric mode, (see set parametric). Please see set xrange for additional information about ranges. In other words, in the absence of a data file, functions alone do not affect the x range (or the y range if plotting z = f(x,y)). If there are no data files, autoscaling an independent variable has no effect. If autoscaling of the dependent axis (y or z) is not set, the current y or z range is used.Īutoscaling the independent variables (x for plot and x,y for splot) is a request to set the domain to match any data file being plotted. When autoscaling, the axis range is automatically computed and the dependent axis (y for a plot and z for splot) is scaled to include the range of the function or data being plotted. If no keyword is given, all axes are autoscaled. A keyword with min or max appended (this cannot be done with xy) tells gnuplot to autoscale just the minimum or maximum of that axis. Where is either x, y, z, cb, x2, y2 or xy. However, the output arguments of inverse hyperbolic functions of complex arguments are affected if these functions are used, set angles radians must be in effect to maintain consistency between input and output arguments. It has no effect on the arguments of hyperbolic functions or Bessel functions. Set angles also affects the arguments of the machine-defined functions sin(x), cos(x) and tan(x), and the outputs of asin(x), acos(x), atan(x), atan2(x), and arg(x). The angle specified in set grid polar is also read and displayed in the units specified by set angles. The angle setting also applies to 3D mapping as set via the set mapping command. This is particularly useful for plots of data files. If set angles degrees is specified before set polar, then the default range is and the independent variable has units of degrees. Anglesīy default, gnuplot assumes the independent variable in polar graphs is in units of radians. The set and unset commands may optionally contain an iteration clause. See also the reset command, which returns all settable parameters to default values. Options changed using set can be returned to the default state by giving the corresponding unset command. The show command shows their settings show all shows all the settings. No screen is drawn, however, until a plot, splot, or replot command is given. The set command can be used to set _lots_ of options.
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