User's reference

• Basic operations for managing the name space
  • Managing directories
  • Listing names in the name space
  • Removing name entries
  • Renaming name entries
  • Copying data frames or fields
  • Displaying the contents of data frames and fields
  • Querying the vector lenght of a name entry
  • Setting the contents of a data field
  • Selecting fields into a data frame
  • Selecting classes to a classified data frame
  • Selecting items to frames
  • Attaching a data frame to the end of another
  • Handling classified data frames
  • Creating a data field as a number series
  • Converting fields of a data frame into a string field
  • Conversion routines for time
  • Matrices
    • The matrix structure
    • Frame - Matrix commands
• Data reorganization
  • Transposing a data frame
  • Joining data frames
  • Indexing through a joining operation
  • Finding unique data records
  • Finding unique indexes from classes
  • Finding the indexes of a classified data from another classified data
  • Merging a grouping and a classified data
  • Set-relational operations for classes
  • Convert a classification into a field
  • Converting SOM classification to location codes
  • Combining classifications
  • Converting sum values into propabilities
  • Binarizing a classification to data fields
  • Picking data records based on a classified data
  • Sorting a data frame
  • Classifying a data frame with a BMU classifier
  • Classifying data records to sequences
  • Concatenating sequences
  • Overlapping sequential data sets
  • Compacting self-similar data
  • Changing field types
• Basic computing operations
  • Preprocessing data
    • Basic preprocessing
    • Whitening preprocessor command
    • Equalize values within records
    • Treatment for missing data
  • Generating data
  • Field evaluator
    • Expressions
    • Field calculator
    • Record selector
    • Classification with expressions
    • Select classes by evaluating a boolean expression
  • Record evaluator
  • Class evaluator
  • Field statistics
    • Basic statistics for fields
    • Quartiles for data fields
    • Histograms for fields
    • Comparison of two data frames
  • Class statistics
    • Basic statistics for classes
    • Class identifiers
    • Identifying classes by values
    • Evaluating the number of items in classes
    • Values for distributions in classes
    • Histograms for classes
  • Fuzzy sets
    • Creating a fuzzy structure
    • Creating fuzzy sets
    • Altering the membership functions of fuzzy sets
    • An example sequence of fuzzy operations
    • Computing fuzzy membership values for a field
  • Calculating distances between data records
  • Group membership evaluation
• Algorithms
  • The Tree-Structured Self-Organizing Map and related structures
    • Training a TS-SOM
    • Classifying data by a TS-SOM
    • Smoothing data in a TS-SOM
    • Creating a field for TS-SOM layer information
    • Storing the indexes of neurons into a data frame
    • Getting and setting data in a TS-SOM layer
    • Computing a U-matrix
    • Spreading the groups of core neurons
    • Mapping data records onto a TS-SOM
    • Generating data according to the grid of a TS-SOM
  • Backpropagation
    • The basic learning rule
    • The basic learning rule with a momentum term
    • Global adaptive training step length
    • The Matlab neural network toolbox style training
    • The Silva & Almeida training
    • The RPROP training
    • The Levenberg-Marquard training
    • Importing a new data to a trained network
    • Visualizing an MLP network
  • Classical scaling and Sammon's mapping
  • Data clustering
    • Hierarchical clustering
    • k-means clustering
    • Fuzzy c-means clustering
• Image processing
  • File commands
  • Image conversions and cropping
    • Conversions between images and data frames
    • Converting graphs into pixel data frames
    • Creating an image mosaic according to a SOM
  • Basic filtering and thresholding
  • Histograms
  • Edge and line detection methods
    • Edge detection
    • Line detection
  • Extracting features from an image
    • General global features
    • Finding top and bottom points from an image
    • Connecting points with neighbours
    • Cutting connections in a graph
    • Features from graphs
  • BLOB analysis methods
    • Calculating feature distributions based on blobs
    • Calculating features based on blobs
    • Finding blobs with certain properties
  • Fourier commands
  • Commands related to fuzzy-analysis
• Graphics
  • Creating and initializing graphic structures
    • Creating a graphic structure and connecting a frame to it
    • Managing subgraphs
  • Setting a structure over subgraphs
    • Setting the visualized layer
    • Setting the topology and child links of TS-SOM
    • Creating trajectories
    • Connecting neurons
    • Creating contours
    • The U-matrix presentation
    • Axis for each dimension - x, y and z
    • 3D scatterplotting
  • Setting the graphical contents of subgraphs
    • Setting the locations of neurons in 3D
    • Setting the shape of the neurons
    • Setting the size of neurons
    • Setting the proportional diameters of circular neurons
    • Setting the colors or gray levels of neurons
    • The visibility of the neurons
  • Graphical presentations inside subgraphs
    • Axes in subgraphs
    • Plotting data in subgraphs
    • Bars in subgraphs
    • Range plots in subgraphs
    • Line diagrams in subgraphs
    • Line diagrams based on the values of the field
    • Histograms in subgraphs
    • The curves of the functions
    • Field labels and values as text in subgraphs
    • Record labels in subgraphs
    • Data matrix in subgraphs
    • Vector fields
  • Colors and scaling
  • Graphics for groups in a SOM
  • Setting a viewpoint to a graphic image in 3D
  • Displaying an image in a window
  • Displaying graphics
  • Querying the settings of a graphic structure
  • Saving the settings of a graphic structure into a file
  • Graphic frames
    • Creating a graphic frame
    • Adding a graphic structure to a graphic frame
    • Setting the places of graphic structures within graphic frames
  • Commands for working with low level images
    • Generating a low level image from a graphic structure
    • Finding objects from a graphic structure
    • Executing macros according to a selection within a graphic structure
    • Generating a low level image for a graphic frame (tech.)
    • Updating a graphic structure
• File I/O
  • Loading data structures from a file
  • Saving data structures into a file
  • PostScript printing
  • Executing command files
• Miscellaneous commands
  • Changing current filesystem directory
  • Conditional execution
  • Command echo and messaging
  • Logging commands into a file
  • Getting help
  • Error tolerance
  • Returning from a macro
  • Leaving NDAshell
  • Running a UNIX command from the NDAshell
  • Initializing the random number generator
  • Commands for the Xview graphical user interface
    • Opening a graphic tool
    • Opening a graphical fuzzy tool
    • Viewing a graph using OpenGL
    • Pausing the execution of a command file
    • Updating a graphic window from the command line
• OS filesystem commands
  • Get current working directory
  • Set current working directory
  • Create a new directory
  • Remove an existing directory
  • Copy an existing file to another location
  • Copy files to another location
  • Remove an existing file
  • Remove existing files
  • List files and directories
  • List directories
  • List files
• Undocumented commands
  • Data operations
  • Image operations
  • SOM commands
  • Text commands (only available in local distribution)
  • Probability calculation
  • Miscellaneous commands