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[Positioner] Add Measurement::get_std_deviation()

This commit is contained in:
Matteo Cypriani 2012-02-27 12:22:20 +01:00
parent dad6e0aa11
commit 2cc7f373dd
1 changed files with 14 additions and 0 deletions
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14
owlps-positioner/src/measurement.hh
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@ -61,14 +61,21 @@ public:
/** @name Read accessors */
//@{
/// Returns the AccessPoint associated with the Measurement
AccessPoint* get_ap() const ;
/// Returns the mean of the SS list, in dBm
float get_average_dbm() const ;
/// Returns the variance of the SS list
float get_variance() const ;
/// Returns the standard deviation of the SS list
float get_std_deviation() const ;
/// Returns the number of SS in the SS list
int get_nb_ss() const ;
//@}
/** @name Write accessors */
//@{
/// Associate the Measurement with an AccessPoint
void set_ap(const AccessPoint *_ap) ;
/// Adds a signal strength (in dBm) to #ss_list
void add_ss(const pkt_id_t packet_id, const ss_t ss_dbm) ;
@ -76,6 +83,7 @@ public:
void add_ss_list(const std::map<pkt_id_t, ss_t> &_ss_list) ;
/// Merges a given Measurement into the current Measurement
void merge(const Measurement &source) ;
/// Reset all the attributes
void clear(void) ;
//@}
@ -132,6 +140,12 @@ inline float Measurement::get_variance() const
}
inline float Measurement::get_std_deviation() const
{
return sqrt(variance) ;
}
inline int Measurement::get_nb_ss() const
{
return ss_list.size() ;