- .data
The data. Should, preferentially, contain numeric variables
only. If .data
has factor-columns, these columns will be deleted
with a warning message.
- ...
Variables to use in the correlation. If no variable is informed
all the numeric variables from .data
are used.
- col.by
A categorical variable to map the color of the points by.
Defaults to NULL
.
- upper
The visualization method for the upper triangular correlation
matrix. Must be one of 'corr'
(numeric values), 'scatter'
(the scatterplot for each pairwise combination), or NULL
to set a
blank diagonal.
- lower
The visualization method for the lower triangular correlation
matrix. Must be one of 'corr'
(numeric values), 'scatter'
(the scatterplot for each pairwise combination), or NULL
to set a
blank diagonal.
- decimal.mark
The decimal mark. Defaults to "."
.
- axis.labels
Should the axis labels be shown in the plot? Set to
FALSE
.
- show.labels.in
Where to show the axis labels. Defaults to "show"
bottom and left. Use "diag" to show the labels on the diagonal. In this
case, the diagonal layer (boxplot, density or histogram) will be
overwritten.
- size.axis.label
The size of the text for axis labels if
axis.labels = TRUE
. Defaults to 12.
- size.varnames
The size of the text for variable names. Defaults to 12.
- col.varnames
The color of the text for variable names. Defaults to
"black".
- diag
Should the diagonal be shown?
- diag.type
The type of plot to show in the diagonal if diag TRUE
. It must be one of the 'histogram' (to show an histogram), 'density'
to show the Kernel density, or 'boxplot' (to show a boxplot).
- bins
The number of bins, Defaults to 20.
- col.diag
If diag = TRUE
then diagcol
is the color for
the distribution. Set to gray.
- alpha.diag
Alpha-transparency scale (0-1) to make the diagonal plot
transparent. 0 = fully transparent; 1 = full color. Set to 0.15
- col.up.panel, col.lw.panel, col.dia.panel
The color for the upper,
lower, and diagonal panels, respectively. Set to 'gray'.
- prob
The probability of error. Significant correlations will be
highlighted with '', '', and '' (0.05, 0.01, and 0.001,
respectively). Scatterplots with significant correlations may be
color-highlighted.
- col.sign
The color that will highlight the significant correlations.
Set to 'green'.
- alpha.sign
Alpha-transparency scale (0-1) to make the plot area
transparent. 0 = fully transparent; 1 = full color. Set to 0.15
- lab.position
The position that the labels will appear. Set to
'tr'
, i.e., the legends will appear in the top and right of the
plot. Other allowed options are 'tl'
(top and left), 'br'
(bottom and right), 'bl'
(bottom and left).
- progress
NULL
(default) for a progress bar in interactive
sessions with more than 15 plots, TRUE
for a progress bar,
FALSE
for no progress bar.
- smooth
Should a linear smooth line be shown in the scatterplots? Set
to FALSE
.
- col.smooth
The color for the smooth line.
- confint
Should a confidence band be shown with the smooth line? Set to
TRUE
.
- size.point
The size of the points in the plot. Set to 0.5
.
- shape.point
The shape of the point, set to 1
.
- alpha.point
Alpha-transparency scale (0-1) to make the points
transparent. 0 = fully transparent; 1 = full color. Set to 0.7
- fill.point
The color to fill the points. Valid argument if points are
between 21 and 25.
- col.point
The color for the edge of the point, set to black
.
- size.line
The size of the line (smooth and diagonal).
- minsize
The size of the letter that will represent the smallest
correlation coefficient.
- maxsize
The size of the letter that will represent the largest
correlation coefficient.
- pan.spacing
The space between the panels. Set to 0.15.
- digits
The number of digits to show in the plot.
- export
Logical argument. If TRUE
, then the plot is exported to
the current directory.
- file.type
The format of the file if export = TRUE
. Set to
'pdf'
. Other possible values are *.tiff
using file.type = 'tiff'
.
- file.name
The name of the plot when exported. Set to NULL
,
i.e., automatically.
- width
The width of the plot, set to 8
.
- height
The height of the plot, set to 7
.
- resolution
The resolution of the plot if file.type = 'tiff'
is
used. Set to 300
(300 dpi).