Description Usage Arguments Details Value Author(s) References See Also Examples

gplot is primarily used by plot.mandel.kh to produce the underlying grouped data plot.

1 2 3 4 5 6 7 | ```
gplot(x, main = NULL, xlab = NULL, ylab = deparse(substitute(x)),
ylim = NULL, las = 1, axes = TRUE, cex.axis = 1,
frame.plot = axes, lwd = 1, lty = 1, col = par("col"),
separators = TRUE, col.sep = "lightgrey", lwd.sep = 1,
lty.sep = 1, zero.line = TRUE,
lwd.zero = 1, col.zero = 1, lty.zero = 1,
spacing=NA, ...)
``` |

`x` |
A matrix or data frame to be plotted. |

`main` |
Main title for the plot. |

`xlab, ylab` |
Labels for x and y axes. |

`ylim` |
the y limits of the plot. |

`las` |
the style of the axis labels; see |

`axes` |
a logical value indicating whether axes should be drawn on the plot. |

`cex.axis` |
The magnification to be used for axis annotation relative to the current setting of 'cex'. |

`frame.plot` |
Logical; If |

`lwd, lty, col` |
Graphical parameters used for the plotted vertical lines corresponding to each value in x. |

`separators` |
Logical; if |

`col.sep, lwd.sep, lty.sep` |
Graphical parameters used for the separator lines. |

`zero.line` |
logical; if |

`lwd.zero, col.zero, lty.zero` |
Graphical parameters used for the zero line. |

`...` |
Other graphical parameters passed to |

`spacing` |
Spacing for data within each group, as a fraction of inter-group spacing. Defaults to 0.3 or less. |

`gplot`

produces a plot of type="h", with values in x grouped by row and with
optional vertical separators between groups. The plotting order (left to right) is
in order of `stack(as.data.frame(t(x)))`

; each group corresoponds to a row in x.

Because `gplot`

is primarily a supporting function for `plot.mandel.kh`

,
it assumes a suitable object will be provided and does minimal checking
to ensure an appropriate object class. Error messages may not be
very informative.

A numeric vector of mid-points of the groups along the x-axis.

S Ellison s.ellison@lgc.co.uk

Accuracy (trueness and precision) of measurement methods and results – Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method. ISO, Geneva (1994).

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