# Fortran help

#### Aranya C

Hello everyone,

I am new to fortran language but I am trying to code , however i face one difficulty which I am not being able to debug, A little guidance form experts will be helpful,I have a file which looks like this , the '--------------------------------------' is the starting string for each block.

----------------------------------------------
Excited State 1: Triplet-A' 0.5335 eV 2324.11 nm f=?
Right Eigenvector
Alpha Singles Amplitudes
I SymI A SymA Value
28 1 29 1 0.668416
Beta Singles Amplitudes
I SymI A SymA Value
28 1 29 1 -0.668416
Total Energy, E(EOM-CCSD) = -504.940780117

----------------------------------------------
Excited State 2: Triplet-A" 1.1271 eV 1099.99 nm f=?
Right Eigenvector
Alpha Singles Amplitudes
I SymI A SymA Value
28 1 30 2 0.631576
28 1 37 2 0.183901
28 1 39 2 -0.170392
Beta Singles Amplitudes
I SymI A SymA Value
28 1 30 2 -0.631576
28 1 37 2 -0.183901
28 1 39 2 0.170392

----------------------------------------------
The value of the excited state gives the number of main blocks, and in my case the block is 30. and in each block there are sub blocks such as Alpha Singles Amplitudes/Beta Singles amplitudes/Alpha-Alpha Doubles/Beta-Beta Doubles , the number of elements in each sub block is not fixed and changes in each main block.I want to extract the NUMERICAL values in each sublock and write them in a file neglecting the 'Right Eigen Vector String'.At the end of the numerical block there is a blank line that shows the end point of each block.but everytime I execute the code there are no compilation errors but I dont get exactly what I need as I find a problem in reading the sub-blocks so the loop doesnt excute perfectly. My pseudo code looks like this :

nstates=0
linecount=1

115 dummy(2:47)='----------------------------------------------' ! checks for the
state : , Multiplicity , Energy
call findtext(10,dummy,stat)
if (stat.eqv..false.) then
goto 1000

end if

if(dummy(1:14)==' Beta Singles')then
print*,'Beta Singles',nstates

end if

if ((dummy(26:32)=='Triplet').or.(dummy(26:32)=='Singlet'))then
nstates=nstates+1
end if

if(dummy(1:14)==' Alpha Singles')then
print*,'Alpha Singles',nstates
j=0

do while(du1(1:4).ne.' Bet')
j=j+1
write(20,'(a4,i2,a6,i1,a4,i2,a6,i1,f12.6,2x,i2,2x,i2,2x,a2)')du1,b,du2,c,du3,d,du4,e,r,j,nstates,'AS'

! j=j+1
end do
end if

if(dummy(1:14)==' Alpha-Alpha D')then
print*,'Alpha-Alpha D',nstates
do while(du9(1:4).ne.' Alp')
j=j+1
! j=j+1
end do
end if

if(dummy(1:14)==' Beta-Beta D')then
print*,' Beta-Beta D',nstates
end if

if(dummy(2:8)=='SavETr:')then
goto 305
elseif(dummy == '')then
goto 115

else
goto 117

end if

The 'SavETr:' is the first line after all the blocks have been read so I take this as the terminating condition. A little guidance is needed regarding the accuracy of my code

Last edited:
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