Here is a list of all namespace variables with links to the namespace documentation for each variable:

a12 : MRG32k3a
a13n : MRG32k3a
A1p0 : MRG32k3a
a21 : MRG32k3a
a23n : MRG32k3a
A2p0 : MRG32k3a
aBaseSlotDuration : ns3::lrwpan
aBaseSuperframeDuration : ns3::lrwpan
ack_rates_160MHz : bianchi11ax
ack_rates_20MHz : bianchi11ax
ack_rates_40MHz : bianchi11ax
ack_rates_80MHz : bianchi11ax
action : check-style-clang-format
ad_meas : two-ray-to-three-gpp-ch-calibration
ad_measures : two-ray-to-three-gpp-ch-calibration
address : brite-generic-example, first, second, third
ALL_CHANNELS : ns3::zigbee
all_checks_successful : check-style-clang-format
ALLOC_OVER_PROVISION : ns3
aMaxBeaconOverhead : ns3::lrwpan
aMaxBeaconPayloadLength : ns3::lrwpan
aMaxLostBeacons : ns3::lrwpan
aMaxPhyPacketSize : ns3::lrwpan
aMaxSIFSFrameSize : ns3::lrwpan
aMinMPDUOverhead : ns3::lrwpan
anchor : anonymous_namespace{print-introspected-doxygen.cc}
aNumSuperframeSlots : ns3::lrwpan
apDevices : third
app : openflow-switch
appcont : nsclick-simple-lan
arch : test-ns3
args : check-style-clang-format, two-ray-to-three-gpp-ch-calibration
argument : anonymous_namespace{print-introspected-doxygen.cc}
asciiTrace : brite-generic-example
atmosphericAbsorption : anonymous_namespace{three-gpp-propagation-loss-model.cc}
aTurnaroundTime : ns3::lrwpan
aUnitBackoffPeriod : ns3::lrwpan
avg_mean : two-ray-to-three-gpp-ch-calibration
AwgnErrorTableBcc1458 : ns3
AwgnErrorTableBcc32 : ns3
AwgnErrorTableLdpc1458 : ns3