| # PrinGrid Map your grid data |

You have chosen to analyse your conceptual representation using the PrinGrid Map method.

The PrinGrid principal components analysis algorithm treats the as points in a space whose dimensions are the .

It rotates the space to represent the points as much as possible in a space of lower dimensionality.

It plots the points and the dimensions as a 2D or 3D map.

## Showing a list of your PrinGrid Map Parameters

You can show or hide a list of the parameters that control what is displayed.

Clicking on shows them, and clicking on hides them.

## PrinGrid Map Parameters

There are five sub-sections to the PrinGrid Map Parameters panel: the top row of controls, the "Plot" section, the "Text" section, the "Style" section and the "Use" section.

In the top row:

Clicking on the "Continue" button at the far right returns to the main page.

Clicking on the "PrinGrid Map" button causes the plot to be produced again with the new parameters.

Clicking on the "Image" button on the left displays a menu of options for preserving the current plot:

- Copy the plot in a separate window so that you can retain a copy.
- Download the plot as a scalable vector graphics (SVG) file.
- Download the plot as a PNG file at one of 3 resolutions.
- Download the plot as a JPG file at one of 3 resolutions.

## Plot the Analysis Graphically

The "Plot" check box when checked causes the PrinGrid Map analysis to be plotted.

The "Title" check box when checked causes the plot to be titled.

The "Numbers" check box when checked causes the and numbers to be shown.

The "Variance" check box when checked causes the percentage variance in each lower dimensional component to be shown.

The "Axes" check box when checked causes the axes of the lower-dimensional space to be shown.

The "Labels" check box when checked causes any axes to be labelled with the proportion of variance they represent.

The menu at the right allows the data to be anlyzed to be specified as Distances or Covariances.

The "Power" value specified the Minkowski metric to be used for distances.

On the left of the next two rows are check boxes to specify whether the and should be plotted, whether their annotation should be included in parentheses after their names, and whether the names should be wrapped and/or shown vertically or horizontally in relation to the point plotted.

On the right of these rows are further controls for the plot: -

The "Margins" values specify additional space extending the axes and Voronoi diagram, if any (e.g. "20, 30" specifies 20px horizontally and 30 vertically, a single number specifies both, and a V after the numbers specify they only apply if a Voronoi diagram has been specified).

The "Voronoi" check box when checked causes a Voronoi diagram to be plotted for the locations.

The "Dimensions" check box when checked causes the dimensions to be shown as lines.

The "Means" check box when checked causes dimensions to be centred on the means.

The next row provides further controls for the plot: -

The "Scale" value specifies the overall scale of the plot.

The "Cutoff" value specifies the minimum proportion of variance for a component to be considered.

The "C/E" value specifies the ratio between the range of and locations. <

The "Spread" check box when checked causes the and labels to be moved to avoid overlap.

The three menus in the next two rows specify which components will be plotted.

The "Reverse" check box next to each menu if checked specifies that the component will be plotted reversed.

The "3D" check box when checked causes causes a 3D plot to be generated.

The three numbers following it specifying the degrees of rotation of each axis in the 3D plot..

## Add a Scree Plot of Principal Components

The "Scree" check box when checked causes a scree plot from a principal components analysis to be shown.

The "Title" check box when checked causes the plot to be titled.

The "Compare" check box when checked adds a plot of the expected random distribution, whichs allows the number of significant components to be estimated by comparison.

The "Scales" text box takes up 4 numbers separated by spaces.

- Specify whether each increment on the vertical scale corresponds to 1 or 2.
- Spacing may be further specified by up to three additional comma-separated numbers: space between vertical increments, space between horizontal increments, horizontal space at each end of plot.
- Default values if not specified are: 1, 3, 20, 10.

The scree plot parameters are common to Map and Synopsis—changing them in one applies them to the other.

## Output the Analysis in Textual Form

The "Text" check box when checked causes the PrinGrid Map analysis to be output in textual form.

The check boxes determine whether percentage variance in each component and the loadings of the and on the components will be shown.

## Set the Style of the Plot

The "Style" sub-section top row allows the font and font size used in the plot to be changed, and the plot to be shown without a background or in black and white.

The next three rows enable the colors used in the plot to be specified by clicking the color swatches.

The final row enables the identifier used in the plot title to be specified. An item may be created on the "Options" page named "ID" and used as a customized identifier for the grid, and/or some combination of the name, note, date and time may be specified. If nothing is specified the default identifier is the name followed by the note in parentheses.

The style parameters are common to all analyses so that changing them in one applies consistent changes to the others.

## Use Selected Items and Weights

The "Use" sub-section specifies whether only selected and will be displayed.

The "All" button at the top selects all and to be analyzed (equivalent to selecting all of them on the main page).

If any of the "Data Types" check boxes on the main page are checked this sub-section also gives the options to use and weights in analyses.

The selection and weight parameters are common to all analyses so that changing them in one applies them to the others.