/**

@defgroup Patterns


@addtogroup Patterns
@{
@fn int ENgetpatternindex (char *id, int *index)
@fn int ENgetpatternid (int index, char *id)
@fn int ENgetpatternlen (int index, int *len)
@fn int ENgetpatternvalue (int index, int period, EN_API_FLOAT_TYPE *value)
@fn int ENgetaveragepatternvalue (int index, EN_API_FLOAT_TYPE *value)
@}
*/