The QtiPlot Handbook
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# The Matrix Menu

This menu is only active when a matrix is selected.

Set Properties...

  This command opens a dialog window which is used to specify some view parameters of the matrix (cell width, format of numbers).

Set Dimensions...

  This command opens a dialog window which is used to specify the size of a matrix. It can also be used to specify the X and Y ranges which will be used as axis ranges for a 3D-plot of the matrix data.

Set Values...

  This command opens a dialog window which is used to fill in a matrix with the result of a function z=f(i,j) in which i and j stand for the row and column numbers.

Recalculate (Ctrl-Return)

  This command allows to recalculate the matrix cell values using a predefined formula.

Rotate 90 (Ctrl-Shift-R)

  This command performes a clockwise 90 degrees rotation of the active matrix.

Rotate -90 (Ctrl-Alt-R)

  This command performes a counterclockwise 90 degrees rotation of the active matrix.

Flip V (Ctrl-Shift-V)

  Flips vertically the selected matrix.

Flip H (Ctrl-Shift-H)

  Flips horizontally the selected matrix.

Transpose

  Transpose the selected matrix.

Invert

  Inverse the selected matrix.

Determinant

  Compute the determinant of the selected matrix.

Go to Row... (Ctrl-Alt-G)

  This command opens a dialog allowing to select a row index that will become the current row in the selected matrix.

View

  Image mode (Ctrl-Shift-I)

    Displays the selected matrix as an image.

  Data mode (Ctrl-Shift-D)

    Displays the selected matrix as a data table.

Palette

  Gray Scale Map

    If the selected matrix is viewed as an image, this command sets its palette to a gray scale.

  Rainbow

    If the selected matrix is viewed as an image, this command sets its palette to a predefined color scale.

  Custom

    Opens a dialog allowing to customize the palette of the selected matrix, in case this is displayed as an image.

Show Column/Row (Ctrl-Shift-C)

  By checking this option the horizontal and vertical headers of the selected matrix will display the column/row indexes.

Show X/Y (Ctrl-Shift-X)

  By checking this option the horizontal and vertical headers of the selected matrix will display the x/y coordinates.

Convert to Spreadsheet

  Convert the selected matrix in a table.

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The Table Menu | Up | The Format Menu