i have data like below
Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input str10 VDS_ID str5 SUR_MON_YR str26 LOAN_INSTITUTIONAL long(LOAN_REPAID LOAN_REC) str24 LOAN_PURPOSE double LOAN_INT
"IAP10A0008" "07/10" "Finance companies"     2400      . ""                       .
"IAP10A0008" "08/10" "Finance companies"     2900  10000 "LOAN REPAYMENT"         .
"IAP10A0008" "09/10" "Finance companies"     3300      . ""                       .
"IAP10A0008" "10/10" "Finance companies"     1600      . ""                       .
"IAP10A0010" "09/10" "Self help group(SHG)"     .   6000 "LOAN REPAYMENT"        12
"IAP10A0034" "02/11" "Self help group(SHG)"     .  10000 "LOAN REPAYMENTS"        3
"IAP10A0034" "09/10" "Finance companies"        .  10000 "LOAN REPAYMENT"        18
"IAP10A0034" "10/10" "Finance companies"      900      . ""                       .
"IAP10A0034" "11/10" "Finance companies"      225      . ""                       .
"IAP10A0043" "07/10" "Self help group(SHG)"     .  10000 "AGRICULTURE"           12
"IAP10A0043" "08/10" "Self help group(SHG)"     .   6000 "AGRICULTURE"           12
"IAP10A0043" "09/10" "Self help group(SHG)"     .   6000 "DOMESTIC"              12
"IAP10A0044" "01/11" "Finance companies"     3760      . ""                       .
"IAP10A0044" "02/11" "Finance companies"     3760      . ""                       .
"IAP10A0044" "03/11" "Finance companies"     4700      . ""                       .
"IAP10A0044" "04/11" "Finance companies"     4700      . ""                       .
"IAP10A0044" "05/11" "Finance companies"     4700      . ""                       .
"IAP10A0044" "06/11" "Finance companies"     4700      . "DOMESTIC"               .
"IAP10A0044" "07/10" "Finance companies"        .  40000 "LOAN REPAYMENT"        18
"IAP10A0044" "07/10" "Self help group(SHG)"     .  10000 "LIVESTOCK"             12
"IAP10A0044" "08/10" "Finance companies"     3740      . ""                       .
"IAP10A0044" "09/10" "Finance companies"     3740      . ""                       .
"IAP10A0044" "09/10" "Self help group(SHG)"     .  12000 "AGRICULTURE"           12
"IAP10A0044" "10/10" "Finance companies"     1870      . ""                       .
"IAP10A0044" "11/10" "Finance companies"     3760      . ""                       .
"IAP10A0044" "12/10" "Finance companies"     3760      . ""                       .
"IAP10A0046" "03/11" "Self help group(SHG)"     .   5000 "AGRICULTURE"           24
"IAP10A0053" "05/11" "Grameena Banks"       33000  25000 "AGRICULTURE"           12
"IAP10A0053" "06/11" "Grameena Banks"       62000  60000 "AGRICULTURE"           12
"IAP10A0055" "07/10" "Grameena Banks"       35500  50000 "AGRICULTURE"           12
"IAP10A0081" "06/11" "Self help group(SHG)"     .  12000 "AGRICULTURE"           12
"IAP10A0082" "06/11" "Self help group(SHG)"     .  13000 "AGRICULTURE"           12
"IAP10A0202" "02/11" "Self help group(SHG)"     .  10000 "MARRIAGE"               3
"IAP10A0202" "07/10" "Finance companies"     2160      . ""                       .
"IAP10A0202" "08/10" "Finance companies"     2920   8000 "AGRICULTURE"           18
"IAP10A0202" "09/10" "Finance companies"     2920      . ""                       .
"IAP10A0202" "10/10" "Finance companies"     1460      . ""                       .
"IAP10A0203" "07/10" "Finance companies"      800      . ""                       .
"IAP10A0203" "08/10" "Finance companies"     1500  10000 "LOAN REPAYMENT"        18
"IAP10A0203" "09/10" "Finance companies"     2240      . ""                       .
"IAP10A0203" "10/10" "Finance companies"     1250      . ""                       .
"IAP10A0208" "08/10" "Self help group(SHG)"     .  15000 "AGRICULTURE"           12
"IAP10A0209" "06/11" "Cooperatives"          1900      . "DOMESTIC"               .
"IAP10A0209" "07/10" "Cooperatives"         31200  30000 "AGRICULTURE"           12
"IAP10A0210" "04/11" "Self help group(SHG)"     .   7000 "CONSUMPTION"            3
"IAP10A0210" "07/10" "Grameena Banks"       20500  20000 "AGRICULTURE"           12
"IAP10A0216" "05/11" "Cooperatives"          6000  60000 "LIVESTOCK"             12
"IAP10A0217" "05/11" "Finance companies"        . 210000 "TRACTOR PURCHASED"     24
"IAP10A0217" "09/10" "Commercial Banks"         .  22000 "AGRICULTURE"           12
"IAP10A0220" "07/10" "Finance companies"     1800      . ""                       .
"IAP10A0220" "08/10" "Self help group(SHG)"     .   3000 "DOMESTIC"              12
"IAP10A0220" "08/10" "Finance companies"     1800      . ""                       .
"IAP10A0220" "09/10" "Finance companies"     1800      . ""                       .
"IAP10A0220" "10/10" "Finance companies"      900      . ""                       .
"IAP10A0224" "07/10" "Self help group(SHG)"     .  10000 "AGRICULTURE"           12
"IAP10A0224" "07/10" "Grameena Banks"       48500  51000 "AGRICULTURE"           12
"IAP10A0224" "08/10" "Self help group(SHG)"     .  10000 "AGRICULTURE"           12
"IAP10A0226" "04/11" "LIC"                      .  40000 "LOAN REPAYMENT"        10
"IAP10A0226" "09/10" "Grameena Banks"       54400  50000 "AGRICULTURE"           12
"IAP10A0226" "11/10" "Grameena Banks"       36000      . ""                       .
"IAP10A0227" "01/11" "Grameena Banks"       28000  25000 "AGRICULTURE LOAN"      12
"IAP10A0227" "06/11" "Self help group(SHG)" 10000  12000 "AGRICULTURE"           12
"IAP10A0228" "01/11" "Finance companies"     6300      . ""                       .
"IAP10A0228" "02/11" "Finance companies"     6300      . ""                       .
"IAP10A0228" "03/11" "Finance companies"     6300      . ""                       .
"IAP10A0228" "03/11" "Self help group(SHG)"     .   6600 "CONSUMPTION"           12
"IAP10A0228" "04/11" "Finance companies"     6600      . ""                       .
"IAP10A0228" "05/11" "Finance companies"     7800      . ""                       .
"IAP10A0228" "06/11" "Finance companies"     7800      . ""                       .
"IAP10A0228" "07/10" "Finance companies"     7660      . ""                       .
"IAP10A0228" "08/10" "Finance companies"     8860  10000 "DOMESTIC"              18
"IAP10A0228" "09/10" "Finance companies"     8860      . ""                       .
"IAP10A0228" "10/10" "Finance companies"     4240      . ""                       .
"IAP10A0228" "11/10" "Finance companies"     6330      . ""                       .
"IAP10A0228" "12/10" "Finance companies"     6300      . ""                       .
"IAP10A0229" "07/10" "Self help group(SHG)"     .  13000 "LIVESTOCK"             12
"IAP10A0231" "08/10" "Self help group(SHG)"     .   7700 "PETROL PUMP PURCHASED" 12
"IAP10A0234" "07/10" "Finance companies"      900      . ""                       .
"IAP10A0234" "08/10" "Finance companies"     1500  10000 ""                      18
"IAP10A0234" "09/10" "Finance companies"     1840      . ""                       .
"IAP10A0234" "10/10" "Finance companies"      920      . ""                       .
"IAP10A0234" "12/10" "Finance companies"      500      . ""                       .
"IAP10A0236" "06/11" "Self help group(SHG)"     .   4000 "DOMESTIC"              24
"IAP10A0236" "07/10" "Self help group(SHG)"     .  10000 "LOAN REPAYMENT"        12
"IAP10A0236" "10/10" "Self help group(SHG)"     .   6000 "FESTIVALS"             24
"IAP10A0239" "08/10" "Finance companies"        .  10000 "AGRICULTURE"           18
"IAP10A0239" "09/10" "Finance companies"      900      . ""                       .
"IAP10A0239" "10/10" "Finance companies"      450      . ""                       .
"IAP10A0240" "06/11" "Self help group(SHG)"     .   6000 "AGRICULTURE"           12
"IAP10A0240" "09/10" "Self help group(SHG)"     .  10000 "MEDICINES"             12
"IAP10A0241" "04/11" "Grameena Banks"       19000  18000 "AGRICULTURE"           12
"IAP10A0241" "04/11" "Commercial Banks"     55000   5000 "AGRICULTURE"            3
"IAP10A0242" "06/11" "Commercial Banks"         .  32000 "AGRICULTURE"           12
"IAP10A0242" "07/10" "Commercial Banks"         .  31000 "AGRICULTURE"           12
"IAP10A0297" "03/11" "Self help group(SHG)"     .   6600 "AGRICULTURE"           12
"IAP10A0297" "07/10" "Finance companies"     2650      . ""                       .
"IAP10A0297" "08/10" "Finance companies"     2650      . ""                       .
"IAP10A0297" "09/10" "Finance companies"     2650      . ""                       .
"IAP10A0297" "10/10" "Finance companies"     1650      . ""                       .
"IAP10A0300" "07/10" "Self help group(SHG)"     .  14000 "HOUSE CONSTRUCTION"    12
end
but in this data there are some duplicates wrt to VDS_ID and SUR_MON_YR
Code:
"IAP10A0044" "07/10" "Finance companies"        .  40000 "LOAN REPAYMENT"        18
"IAP10A0044" "07/10" "Self help group(SHG)"     .  10000 "LIVESTOCK"             12
end
so i want for a VDS_ID there should be only one entry for one SUR_MON_YR.
hence a result like below:
Code:
"IAP10A0044" "07/10" "Finance companies+Self help group(SHG)"        .  40000+10000 "LOAN REPAYMENT+LIVESTOCK"        18+12
end
please guide me on how to do this