The Complete SPRLIB & ANNLIB

UNIT: - unit datatype

SYNOPSIS

typedef struct unit

{

long UnitId; Unit identification number.

long LayerId; Layer identification number.

long UnitFlag; Unit flags - see UNIT-flags.

long InOutIndex; Input or output terminal number. If the unit is not an input or output unit, set to 0.

char UnitName[80]; Unit name string.

struct weight Theta; Bias (threshold) value, containing a pointer to the history - see WEIGHT.

struct unit_value Value; Current unit state, containing a pointer to the history - see UNIT_VALUE.

double (*ActFunc)(); Pointer to function to calculate activation.

double (*TransFunc)(); Pointer to function to calculate output.

double (*DerTransFunc)(); Pointer to the derivative of the output function.

double (*DerDerTransFunc)(); Pointer to the second derivative of the output function.

double TransFuncPar1; Optional parameter of the transfer function.

double TransFuncPar2; Optional parameter of the transfer function.

double TransFuncPar3; Optional parameter of the transfer function.

long NumInLinks; Number of incoming links.

long NumOutLinks; Number of outgoing links.

struct link *InLinks; Linked list of incoming links - see LINK.

struct link *OutLinks; Linked list of outgoing links - see LINK.

union system_data SystemData; Union of data used by algorithms.

union system_data UserData; Union of data for library user.

struct unit *Next; Pointer to next unit description.

struct unit *Prev; Pointer to previous unit description.

} UNIT;

DESCRIPTION

This type is used to represent a unit. The fields speak for themselves.

NOTE

All units are stored in a double linked list. The UNIT structure is usually filled by a network creation function (create_ff_net , create_sharednet , create_mlnet , create_koh_net). The TransFuncParX fields are currently only used by the TransParTanH transfer function.

The Complete SPRLIB & ANNLIB

`UNIT`

- unit datatype

SYNOPSIS

DESCRIPTION

NOTE

SEE ALSO

`long`	`UnitId;`	Unit identification number.
`long`	`LayerId;`	Layer identification number.
`long`	`UnitFlag;`	Unit flags - see `UNIT-flags`.
`long`	`InOutIndex;`	Input or output terminal number. If the unit is not an input or output unit, set to 0.
`char`	`UnitName[80];`	Unit name string.
`struct weight`	`Theta;`	Bias (threshold) value, containing a pointer to the history - see `WEIGHT`.
`struct unit_value`	`Value;`	Current unit state, containing a pointer to the history - see `UNIT_VALUE`.
`double`	*`(ActFunc)();`**	Pointer to function to calculate activation.
`double`	*`(TransFunc)();`**	Pointer to function to calculate output.
`double`	*`(DerTransFunc)();`**	Pointer to the derivative of the output function.
`double`	*`(DerDerTransFunc)();`**	Pointer to the second derivative of the output function.
`double`	`TransFuncPar1;`	Optional parameter of the transfer function.
`double`	`TransFuncPar2;`	Optional parameter of the transfer function.
`double`	`TransFuncPar3;`	Optional parameter of the transfer function.
`long`	`NumInLinks;`	Number of incoming links.
`long`	`NumOutLinks;`	Number of outgoing links.
`struct link`	*`InLinks;`**	Linked list of incoming links - see `LINK`.
`struct link`	*`OutLinks;`**	Linked list of outgoing links - see `LINK`.
`union system_data`	`SystemData;`	Union of data used by algorithms.
`union system_data`	`UserData;`	Union of data for library user.
`struct unit`	*`Next;`**	Pointer to next unit description.
`struct unit`	*`Prev;`**	Pointer to previous unit description.