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dont have a clue again- flying bat data new logger

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Top Forums Shell Programming and Scripting dont have a clue again- flying bat data new logger
# 1  
Old 03-09-2011
dont have a clue again- flying bat data new logger
hi,

this is related to this thread https://www.unix.com/shell-programmin...-bat-data.html

using another type of logger (ipcas ipether232) which produces csv data but not seperated into differnt folders. I need to work out how to get daily stats on bat transits (note: a bats day is 4pm to 9am)

to recap: there are two infrared beams which must both be blocked for a valid transit and direction -if only one at a time blocked it is not a bat -it is an insect.
here are valid transits:
# One direction
1,1 #Block 1
0,1 #Block 0
1,0 #Unblock 1
0,0 #Unblock 0

# Other dir
0,1 #Block 0
1,1 #Block 1
0,0 #Unblock 0
0,1 #Unblock 1
here is a sample of counts for 3 days from the logger. Note, there is a lot of bogus data at the start of day one.

Code:
ID,EventTicks,date,EventTime,IPAddress,Pin,State
 1028,634352038023594000,08/03/2011,17:56:42,192.168.0.9,1,1
 1029,634352038023657000,08/03/2011,17:56:42,192.168.0.9,1,0
 1030,634352038023672000,08/03/2011,17:56:42,192.168.0.9,0,1
 1031,634352038023682000,08/03/2011,17:56:42,192.168.0.9,0,0
 1032,634352038032558000,08/03/2011,17:56:43,192.168.0.9,0,1
 1033,634352038032572000,08/03/2011,17:56:43,192.168.0.9,1,1
 1034,634352038032583000,08/03/2011,17:56:43,192.168.0.9,0,0
 1035,634352038033666000,08/03/2011,17:56:43,192.168.0.9,1,0
 1036,634352038043948000,08/03/2011,17:56:44,192.168.0.9,1,1
 1037,634352038043963000,08/03/2011,17:56:44,192.168.0.9,0,1
 1038,634352038043976000,08/03/2011,17:56:44,192.168.0.9,1,0
 1039,634352038043986000,08/03/2011,17:56:44,192.168.0.9,0,0
 1040,634352038050399000,08/03/2011,17:56:45,192.168.0.9,0,1
 1041,634352038050413000,08/03/2011,17:56:45,192.168.0.9,0,0
 1042,634352038050424000,08/03/2011,17:56:45,192.168.0.9,1,1
 1043,634352038050434000,08/03/2011,17:56:45,192.168.0.9,1,0
 1044,634352038060781000,08/03/2011,17:56:46,192.168.0.9,1,1
 1045,634352038060795000,08/03/2011,17:56:46,192.168.0.9,0,1
 1046,634352038060807000,08/03/2011,17:56:46,192.168.0.9,1,0
 1047,634352038060816000,08/03/2011,17:56:46,192.168.0.9,0,0
 1048,634352038079731000,08/03/2011,17:56:48,192.168.0.9,0,1
 1049,634352038079745000,08/03/2011,17:56:48,192.168.0.9,1,1
 1050,634352038079755000,08/03/2011,17:56:48,192.168.0.9,0,0
 1051,634352038079765000,08/03/2011,17:56:48,192.168.0.9,1,0
 1052,634352038103921000,08/03/2011,17:56:50,192.168.0.9,1,1
 1053,634352038103935000,08/03/2011,17:56:50,192.168.0.9,0,1
 1054,634352038103945000,08/03/2011,17:56:50,192.168.0.9,1,0
 1055,634352038103955000,08/03/2011,17:56:50,192.168.0.9,0,0
 1056,634352038124383000,08/03/2011,17:56:52,192.168.0.9,0,1
 1057,634352038124397000,08/03/2011,17:56:52,192.168.0.9,1,1
 1058,634352038124407000,08/03/2011,17:56:52,192.168.0.9,0,0
 1059,634352038124417000,08/03/2011,17:56:52,192.168.0.9,1,0
 1060,634352038150085000,08/03/2011,17:56:55,192.168.0.9,1,1
 1061,634352038150099000,08/03/2011,17:56:55,192.168.0.9,0,1
 1062,634352038150110000,08/03/2011,17:56:55,192.168.0.9,1,0
 1063,634352038150120000,08/03/2011,17:56:55,192.168.0.9,0,0
 1064,634352038169538000,08/03/2011,17:56:57,192.168.0.9,1,1
 1065,634352038169553000,08/03/2011,17:56:57,192.168.0.9,0,1
 1066,634352038169563000,08/03/2011,17:56:57,192.168.0.9,1,0
 1067,634352038169573000,08/03/2011,17:56:57,192.168.0.9,0,0
 1068,634352038187480000,08/03/2011,17:56:59,192.168.0.9,1,1
 1069,634352038187494000,08/03/2011,17:56:59,192.168.0.9,0,1
 1070,634352038187505000,08/03/2011,17:56:59,192.168.0.9,1,0
 1071,634352038187514000,08/03/2011,17:56:59,192.168.0.9,0,0
 1072,634352038204111000,08/03/2011,17:57:00,192.168.0.9,1,1
 1073,634352038204125000,08/03/2011,17:57:00,192.168.0.9,1,0
 1074,634352038204136000,08/03/2011,17:57:00,192.168.0.9,0,1
 1075,634352038204146000,08/03/2011,17:57:00,192.168.0.9,0,0
 1076,634352038221145000,08/03/2011,17:57:02,192.168.0.9,1,1
 1077,634352038221160000,08/03/2011,17:57:02,192.168.0.9,0,1
 1078,634352038222355000,08/03/2011,17:57:02,192.168.0.9,1,0
 1079,634352038222366000,08/03/2011,17:57:02,192.168.0.9,0,0
 1080,634352038300773000,08/03/2011,17:57:10,192.168.0.9,1,1
 1081,634352038300788000,08/03/2011,17:57:10,192.168.0.9,0,1
 1082,634352038300798000,08/03/2011,17:57:10,192.168.0.9,1,0
 1083,634352038300809000,08/03/2011,17:57:10,192.168.0.9,0,0
 1084,634352038316296000,08/03/2011,17:57:12,192.168.0.9,1,1
 1085,634352038316311000,08/03/2011,17:57:12,192.168.0.9,0,1
 1086,634352038316322000,08/03/2011,17:57:12,192.168.0.9,1,0
 1087,634352038316331000,08/03/2011,17:57:12,192.168.0.9,0,0
 1088,634352038506698000,08/03/2011,17:57:31,192.168.0.9,1,1
 1089,634352038506713000,08/03/2011,17:57:31,192.168.0.9,0,1
 1090,634352038507807000,08/03/2011,17:57:31,192.168.0.9,1,0
 1091,634352038507818000,08/03/2011,17:57:31,192.168.0.9,0,0
 1092,634352038520910000,08/03/2011,17:57:32,192.168.0.9,0,1
 1093,634352038520924000,08/03/2011,17:57:32,192.168.0.9,1,1
 1094,634352038520935000,08/03/2011,17:57:32,192.168.0.9,0,0
 1095,634352038522018000,08/03/2011,17:57:32,192.168.0.9,1,0
 1096,634352038531997000,08/03/2011,17:57:33,192.168.0.9,1,1
 1097,634352038532010000,08/03/2011,17:57:33,192.168.0.9,0,1
 1098,634352038533025000,08/03/2011,17:57:33,192.168.0.9,1,0
 1099,634352038533035000,08/03/2011,17:57:33,192.168.0.9,0,0
 1100,634352038546714000,08/03/2011,17:57:35,192.168.0.9,0,1
 1101,634352038546727000,08/03/2011,17:57:35,192.168.0.9,1,1
 1102,634352038546737000,08/03/2011,17:57:35,192.168.0.9,0,0
 1103,634352038548024000,08/03/2011,17:57:35,192.168.0.9,1,0
 1104,634352038556995000,08/03/2011,17:57:36,192.168.0.9,1,1
 1105,634352038557009000,08/03/2011,17:57:36,192.168.0.9,0,1
 1106,634352038557019000,08/03/2011,17:57:36,192.168.0.9,1,0
 1107,634352038558305000,08/03/2011,17:57:36,192.168.0.9,0,0
 1108,634352038568788000,08/03/2011,17:57:37,192.168.0.9,0,1
 1109,634352038568801000,08/03/2011,17:57:37,192.168.0.9,1,1
 1110,634352038568811000,08/03/2011,17:57:37,192.168.0.9,0,0
 1111,634352038569997000,08/03/2011,17:57:37,192.168.0.9,1,0
 1112,634352038578666000,08/03/2011,17:57:38,192.168.0.9,1,1
 1113,634352038578680000,08/03/2011,17:57:38,192.168.0.9,0,1
 1114,634352038578690000,08/03/2011,17:57:38,192.168.0.9,1,0
 1115,634352038578699000,08/03/2011,17:57:38,192.168.0.9,0,0
 1116,634352038589148000,08/03/2011,17:57:39,192.168.0.9,0,1
 1117,634352038589161000,08/03/2011,17:57:39,192.168.0.9,1,1
 1118,634352038589171000,08/03/2011,17:57:39,192.168.0.9,0,0
 1119,634352038590458000,08/03/2011,17:57:39,192.168.0.9,1,0
 1120,634352038615960000,08/03/2011,17:57:42,192.168.0.9,0,1
 1121,634352038615974000,08/03/2011,17:57:42,192.168.0.9,1,1
 1122,634352038615984000,08/03/2011,17:57:42,192.168.0.9,0,0
 1123,634352038615994000,08/03/2011,17:57:42,192.168.0.9,1,0
 1124,634352038630374000,08/03/2011,17:57:43,192.168.0.9,0,1
 1125,634352038630389000,08/03/2011,17:57:43,192.168.0.9,1,1
 1126,634352038630399000,08/03/2011,17:57:43,192.168.0.9,0,0
 1127,634352038630408000,08/03/2011,17:57:43,192.168.0.9,1,0
 1128,634352038645191000,08/03/2011,17:57:45,192.168.0.9,0,1
 1129,634352038645204000,08/03/2011,17:57:45,192.168.0.9,1,1
 1130,634352038645214000,08/03/2011,17:57:45,192.168.0.9,0,0
 1131,634352038645223000,08/03/2011,17:57:45,192.168.0.9,1,0
 1132,634352038657891000,08/03/2011,17:57:46,192.168.0.9,1,1
 1133,634352038657905000,08/03/2011,17:57:46,192.168.0.9,0,1
 1134,634352038657915000,08/03/2011,17:57:46,192.168.0.9,1,0
 1135,634352038657924000,08/03/2011,17:57:46,192.168.0.9,0,0
 1136,634352038671397000,08/03/2011,17:57:47,192.168.0.9,1,1
 1137,634352038671411000,08/03/2011,17:57:47,192.168.0.9,0,1
 1138,634352038671421000,08/03/2011,17:57:47,192.168.0.9,1,0
 1139,634352038672506000,08/03/2011,17:57:47,192.168.0.9,0,0
 1140,634352038684501000,08/03/2011,17:57:48,192.168.0.9,1,1
 1141,634352038684514000,08/03/2011,17:57:48,192.168.0.9,0,1
 1142,634352038684524000,08/03/2011,17:57:48,192.168.0.9,1,0
 1143,634352038316311000,09/03/2011,17:57:12,192.168.0.9,0,1
 1144,634352038316322000,09/03/2011,17:57:12,192.168.0.9,1,0
 1145,634352038316331000,09/03/2011,17:57:12,192.168.0.9,0,0
 1146,634352038506698000,09/03/2011,17:57:31,192.168.0.9,1,1
 1147,634352038506713000,09/03/2011,17:57:31,192.168.0.9,0,1
 1148,634352038507807000,09/03/2011,17:57:31,192.168.0.9,1,0
 1149,634352038507818000,09/03/2011,17:57:31,192.168.0.9,0,0
 1150,634352038520910000,09/03/2011,17:57:32,192.168.0.9,0,1
 1151,634352038520924000,09/03/2011,17:57:32,192.168.0.9,1,1
 1152,634352038520935000,09/03/2011,17:57:32,192.168.0.9,0,0
 1153,634352038522018000,09/03/2011,17:57:32,192.168.0.9,1,0
 1154,634352038531997000,09/03/2011,17:57:33,192.168.0.9,1,1
 1155,634352038532010000,09/03/2011,17:57:33,192.168.0.9,0,1
 1156,634352038533025000,09/03/2011,17:57:33,192.168.0.9,1,0
 1157,634352038533035000,09/03/2011,17:57:33,192.168.0.9,0,0
 1158,634352038546714000,09/03/2011,17:57:35,192.168.0.9,0,1
 1159,634352038546727000,09/03/2011,17:57:35,192.168.0.9,1,1
 1160,634352038546737000,09/03/2011,17:57:35,192.168.0.9,0,0
 1161,634352038548024000,09/03/2011,17:57:35,192.168.0.9,1,0
 1162,634352038556995000,09/03/2011,17:57:36,192.168.0.9,1,1
 1163,634352038557009000,09/03/2011,17:57:36,192.168.0.9,0,1
 1164,634352038557019000,09/03/2011,17:57:36,192.168.0.9,1,0
 1165,634352038558305000,09/03/2011,17:57:36,192.168.0.9,0,0
 1166,634352038568788000,09/03/2011,17:57:37,192.168.0.9,0,1
 1167,634352038568801000,09/03/2011,17:57:37,192.168.0.9,1,1
 1168,634352038568811000,09/03/2011,17:57:37,192.168.0.9,0,0
 1169,634352038569997000,09/03/2011,17:57:37,192.168.0.9,1,0
 1170,634352038578666000,09/03/2011,17:57:38,192.168.0.9,1,1
 1171,634352038578680000,09/03/2011,17:57:38,192.168.0.9,0,1
 1172,634352038578690000,09/03/2011,17:57:38,192.168.0.9,1,0
 1173,634352038578699000,09/03/2011,17:57:38,192.168.0.9,0,0
 1174,634352038589148000,09/03/2011,17:57:39,192.168.0.9,0,1
 1175,634352038589161000,09/03/2011,17:57:39,192.168.0.9,1,1
 1176,634352038589171000,09/03/2011,17:57:39,192.168.0.9,0,0
 1177,634352038590458000,09/03/2011,17:57:39,192.168.0.9,1,0
 1178,634352038615960000,09/03/2011,17:57:42,192.168.0.9,0,1
 1179,634352038615974000,09/03/2011,17:57:42,192.168.0.9,1,1
 1180,634352038615984000,09/03/2011,17:57:42,192.168.0.9,0,0
 1181,634352038615994000,09/03/2011,17:57:42,192.168.0.9,1,0
 1182,634352038630374000,09/03/2011,17:57:43,192.168.0.9,0,1
 1183,634352038630389000,09/03/2011,17:57:43,192.168.0.9,1,1
 1184,634352038630399000,09/03/2011,17:57:43,192.168.0.9,0,0
 1185,634352038630408000,09/03/2011,17:57:43,192.168.0.9,1,0
 1186,634352038645191000,09/03/2011,17:57:45,192.168.0.9,0,1
 1187,634352038645204000,09/03/2011,17:57:45,192.168.0.9,1,1
 1188,634352038645214000,09/03/2011,17:57:45,192.168.0.9,0,0
 1189,634352038645223000,09/03/2011,17:57:45,192.168.0.9,1,0
 1190,634352038657891000,09/03/2011,17:57:46,192.168.0.9,1,1
 1191,634352038657905000,09/03/2011,17:57:46,192.168.0.9,0,1
 1192,634352038657915000,09/03/2011,17:57:46,192.168.0.9,1,0
 1193,634352038657924000,09/03/2011,17:57:46,192.168.0.9,0,0
 1194,634352038671397000,09/03/2011,17:57:47,192.168.0.9,1,1
 1195,634352038671411000,09/03/2011,17:57:47,192.168.0.9,0,1
 1196,634352038671421000,09/03/2011,17:57:47,192.168.0.9,1,0
 1197,634352038672506000,09/03/2011,17:57:47,192.168.0.9,0,0
 1198,634352038684501000,09/03/2011,17:57:48,192.168.0.9,1,1
 1199,634352038684514000,09/03/2011,17:57:48,192.168.0.9,0,1
 1200,634352038684524000,09/03/2011,17:57:48,192.168.0.9,1,0
 1201,634352038316311000,09/03/2011,17:57:12,192.168.0.9,0,1
 1202,634352038316322000,09/03/2011,17:57:12,192.168.0.9,1,0
 1203,634352038316331000,09/03/2011,17:57:12,192.168.0.9,0,0
 1204,634352038506698000,09/03/2011,17:57:31,192.168.0.9,1,1
 1205,634352038506713000,09/03/2011,17:57:31,192.168.0.9,0,1
 1206,634352038507807000,09/03/2011,17:57:31,192.168.0.9,1,0
 1207,634352038507818000,09/03/2011,17:57:31,192.168.0.9,0,0
 1208,634352038520910000,09/03/2011,17:57:32,192.168.0.9,0,1
 1209,634352038520924000,09/03/2011,17:57:32,192.168.0.9,1,1
 1210,634352038520935000,09/03/2011,17:57:32,192.168.0.9,0,0
 1211,634352038522018000,09/03/2011,17:57:32,192.168.0.9,1,0
 1212,634352038531997000,09/03/2011,17:57:33,192.168.0.9,1,1
 1213,634352038532010000,09/03/2011,17:57:33,192.168.0.9,0,1
 1214,634352038533025000,09/03/2011,17:57:33,192.168.0.9,1,0
 1215,634352038533035000,09/03/2011,17:57:33,192.168.0.9,0,0
 1216,634352038546714000,09/03/2011,17:57:35,192.168.0.9,0,1
 1217,634352038546727000,09/03/2011,17:57:35,192.168.0.9,1,1
 1218,634352038546737000,09/03/2011,17:57:35,192.168.0.9,0,0
 1219,634352038548024000,09/03/2011,17:57:35,192.168.0.9,1,0
 1220,634352038556995000,09/03/2011,17:57:36,192.168.0.9,1,1
 1221,634352038557009000,09/03/2011,17:57:36,192.168.0.9,0,1
 1222,634352038557019000,09/03/2011,17:57:36,192.168.0.9,1,0
 1223,634352038558305000,09/03/2011,17:57:36,192.168.0.9,0,0
 1224,634352038568788000,09/03/2011,17:57:37,192.168.0.9,0,1
 1225,634352038568801000,09/03/2011,17:57:37,192.168.0.9,1,1
 1226,634352038568811000,09/03/2011,17:57:37,192.168.0.9,0,0
 1227,634352038569997000,09/03/2011,17:57:37,192.168.0.9,1,0
 1228,634352038578666000,09/03/2011,17:57:38,192.168.0.9,1,1
 1229,634352038578680000,09/03/2011,17:57:38,192.168.0.9,0,1
 1230,634352038578690000,09/03/2011,17:57:38,192.168.0.9,1,0
 1231,634352038578699000,09/03/2011,17:57:38,192.168.0.9,0,0
 1232,634352038589148000,09/03/2011,17:57:39,192.168.0.9,0,1
 1233,634352038589161000,09/03/2011,17:57:39,192.168.0.9,1,1
 1234,634352038589171000,09/03/2011,17:57:39,192.168.0.9,0,0
 1235,634352038590458000,09/03/2011,17:57:39,192.168.0.9,1,0
 1236,634352038615960000,09/03/2011,17:57:42,192.168.0.9,0,1
 1237,634352038615974000,09/03/2011,17:57:42,192.168.0.9,1,1
 1238,634352038615984000,09/03/2011,17:57:42,192.168.0.9,0,0
 1239,634352038615994000,09/03/2011,17:57:42,192.168.0.9,1,0
 1240,634352038630374000,09/03/2011,17:57:43,192.168.0.9,0,1
 1241,634352038630389000,09/03/2011,17:57:43,192.168.0.9,1,1
 1242,634352038630399000,09/03/2011,17:57:43,192.168.0.9,0,0
 1243,634352038630408000,09/03/2011,17:57:43,192.168.0.9,1,0
 1244,634352038645191000,09/03/2011,17:57:45,192.168.0.9,0,1
 1245,634352038645204000,09/03/2011,17:57:45,192.168.0.9,1,1
 1246,634352038645214000,09/03/2011,17:57:45,192.168.0.9,0,0
 1247,634352038645223000,09/03/2011,17:57:45,192.168.0.9,1,0
 1248,634352038657891000,09/03/2011,17:57:46,192.168.0.9,1,1
 1249,634352038657905000,09/03/2011,17:57:46,192.168.0.9,0,1
 1250,634352038657915000,09/03/2011,17:57:46,192.168.0.9,1,0
 1251,634352038657924000,09/03/2011,17:57:46,192.168.0.9,0,0
 1252,634352038671397000,09/03/2011,17:57:47,192.168.0.9,1,1
 1253,634352038671411000,09/03/2011,17:57:47,192.168.0.9,0,1
 1254,634352038671421000,09/03/2011,17:57:47,192.168.0.9,1,0
 1255,634352038672506000,09/03/2011,17:57:47,192.168.0.9,0,0
 1256,634352038684501000,09/03/2011,17:57:48,192.168.0.9,1,1
 1257,634352038684514000,09/03/2011,17:57:48,192.168.0.9,0,1
 1258,634352038684524000,09/03/2011,17:57:48,192.168.0.9,1,0
 1259,634352038630374000,10/03/2011,17:57:43,192.168.0.9,0,1
 1260,634352038630389000,10/03/2011,17:57:43,192.168.0.9,1,1
 1261,634352038630399000,10/03/2011,17:57:43,192.168.0.9,0,0
 1262,634352038630408000,10/03/2011,17:57:43,192.168.0.9,1,0
 1263,634352038645191000,10/03/2011,17:57:45,192.168.0.9,0,1
 1264,634352038645204000,10/03/2011,17:57:45,192.168.0.9,1,1
 1265,634352038645214000,10/03/2011,17:57:45,192.168.0.9,0,0
 1266,634352038645223000,10/03/2011,17:57:45,192.168.0.9,1,0
 1267,634352038657891000,10/03/2011,17:57:46,192.168.0.9,1,1
 1268,634352038657905000,10/03/2011,17:57:46,192.168.0.9,0,1
 1269,634352038657915000,10/03/2011,17:57:46,192.168.0.9,1,0
 1270,634352038657924000,10/03/2011,17:57:46,192.168.0.9,0,0
 1271,634352038671397000,10/03/2011,17:57:47,192.168.0.9,1,1
 1272,634352038671411000,10/03/2011,17:57:47,192.168.0.9,0,1
 1273,634352038671421000,10/03/2011,17:57:47,192.168.0.9,1,0
 1274,634352038672506000,10/03/2011,17:57:47,192.168.0.9,0,0
 1275,634352038684501000,10/03/2011,17:57:48,192.168.0.9,1,1
 1276,634352038684514000,10/03/2011,17:57:48,192.168.0.9,0,1
 1277,634352038684524000,10/03/2011,17:57:48,192.168.0.9,1,0

many thanksSmilie in advance if you decide to assist.
cp
# 2  
Old 03-09-2011
not enough information for me yet to help.
Are you asking for a filter to just grab a bat day's worth of log entries?

In that case, it's a simple egrep:

egrep "MM/DD/YYYY,(16|17|18|19|20|21|22|23|01|02|03|04|05|06|07|08|09):" log_file
consolidated:
egrep "MM/DD/YYYY,(1[6-9]|2[0-3]|0[1-9])" log_file

step 1, anyways.
I used
# 3  
Old 03-09-2011
Hi, I tested the grep above but unsure how to really use it and nothing seemed to happen. Ill have to read a manual on grep I thingk.

what I need as output is a file with, as a minimum, the following on each line of text:
date of each day, the maximum count of bats out for each day, the time of that maximum count
e.g.
22/12/2011, 313, 21:00 or similar

"nice to have" but not necesary, any or all of the follwing:
average speed of flight( so I can see when in the year the baby bats start to emerge)
time of first evening flight,
time of last morning flight,
during what 20 minute time did most bats go out

not needed as output: ip address, ticks, pin (althought the ticks and pin will have to be used to caclulate the others)

each full transit by a bat is either an in or an out

bit zero is the first port which is triggered by the beams. bit 1 is the secont port which is triggerd by the beams. -however... to make it "fun", the state of the ports is also recorded as a zero or a one - there is only one state per line of text

sometimes bats will break one beam by turning in the lightbox this obv screws things up and makes it more difficult. thus we need to search for definite patterns and ignore all others.
it might help at this stage to confuse the issue more and explain how it is planned to get daily total counts:
these bat species do a weird thing called "light sampling" where they go in and out multiple times until the conditons are right and finally leave to forage for the night. Obv, this causes a total screw up if you just simply count the total number exiting - you end up with an order of magnitude more bats than actually exist in the roost. To eliminate this as best as possible we need to total the ins and outs until a peak number is arrived at as follows:
If we set "out" = +1 (plus one) and "in" = -1 (minus one)
thus:

dinrection total
out +1 1
out +1 2
out +1 3
out +1 4
in -1 3
in -1 2
out +1 3
etc. this way at some point in each evening there is a maximum in the total column which will Smiliemore or less equate to the total number in the roost

does this make sense? is it possible to do?
Last edited by cmp260; 03-10-2011 at 01:56 PM..
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