need to find all combination from the expression

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Uttam kumar
Uttam kumar 2013-11-30
回答： Uttam kumar 2014-3-18
All possible combination of chars.
Expression=(l/v-x(1,5)-y-x(1,5)-k/r)
x(1,5) means 1 to 5 x combination
Example:-
x
xx
xxx
xxxx
xxxxx
Final output Example :-
LXYXK
LXYXXK
LAYXXXXK
LAYXXXXXK
LXXYXK
LXXXYXXK
......

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回答（2 个）

Uttam kumar
Uttam kumar 2013-12-11
Any better way to do this? Please provide your comments
************************************************************************************ array1=['L';'V'] array2=['A';'A';'A';'A';'A'] array3='Y' array4=['K';'R']
for M=1:length(array4)
for i=1:length(array1) cnt=1 cnt1=1 for j=1:length(array2)*length(array2)
if cnt > length(array2)
if cnt1 < length(array2)
cnt1=cnt1+1
end
cnt=1
end
fprintf('%s',array1(i))
for k=1:cnt1
fprintf('%s',array2(k))
end
fprintf('%s',array3)
for L=1:cnt
fprintf('%s',array2(L))
end
fprintf('%s\n',array4(M))
if cnt <= length(array2)
cnt=cnt+1
end
end
end
end
************************************************************************
output:-
cnt = 1
cnt1 = 1
LAYAK
cnt = 2
LAYAAK
cnt = 3
LAYAAAK
cnt = 4
LAYAAAAK
cnt = 5
LAYAAAAAK
cnt = 6
cnt1 = 2
cnt = 1
LAAYAK
cnt = 2
LAAYAAK
cnt = 3
LAAYAAAK
cnt = 4
LAAYAAAAK
cnt = 5
LAAYAAAAAK
cnt = 6
cnt1 = 3
.........................
how to hide the 'cnt' and 'cnt1' variable value display in output.
Uttam kumar
Uttam kumar 2014-3-18
result={13}; acid={'Ala','Arg','Asp','Asn','Cys','Gln','Glu','Gly','His','Ile','Leu','Lys','Met','Phe','Pro','Ser','Thr','Trp','Tyr','Val'}; %acid={'Ala','Arg','Asp','Asn','Cys'}; %acid=['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T']; ends={'L','V','K','R'}; lIndex=1;
%function to find the all possible combination
function funcomb(index,result,acid,last,fileID) result(index+1)='Y';
for count2=1:length(acid)
switch (count2)
case 1 for p=1:length(acid) result{index+1+1}=acid{p}; result{index+1+1+1}=last; %fprintf('%s\t',strvcat(result)); fprintf(fileID,'%s',result{:}); fprintf(fileID,"\n");
end
case 2 %fprintf(fileID,"\n"); for p=1:length(acid) result{index+1+1}=acid{p}; for q=1:length(acid) result{index+1+1+1}=acid{q}; result{index+1+1+1+1}=last; %fwrite(fileID,'%s\t',result); fprintf(fileID,'%s',result{:}); fprintf(fileID,"\n"); end end
case 3 %fprintf(fileID,"\n"); for p=1:length(acid) result{index+1+1}=acid{p}; for q=1:length(acid) result{index+1+1+1}=acid{q}; for r=1:length(acid) result{index+1+1+1+1}=acid{r}; result{index+1+1+1+1+1}=last; %fwrite(fileID,'%s\t',result); fprintf(fileID,'%s',result{:}); fprintf(fileID,"\n"); end end end
case 4 %fprintf(fileID,"\n"); for p=1:length(acid) result{index+1+1}=acid{p}; for q=1:length(acid) result{index+1+1+1}=acid{q}; for r=1:length(acid) result{index+1+1+1+1}=acid{r}; for s=1:length(acid) result{index+1+1+1+1+1}=acid{s}; result{index+1+1+1+1+1+1}=last; %fwrite(fileID,'%s\t',result); fprintf(fileID,'%s',result{:}); fprintf(fileID,"\n"); end end end end
case 5 %fprintf(fileID,"\n"); for p=1:length(acid) result{index+1+1}=acid{p}; for q=1:length(acid) result{index+1+1+1}=acid{q}; for r=1:length(acid) result{index+1+1+1+1}=acid{r}; for s=1:length(acid) result{index+1+1+1+1+1}=acid{s}; for t=1:length(acid) result{index+1+1+1+1+1+1}=acid{t}; result{index+1+1+1+1+1+1+1}=last; %fwrite(fileID,'%s\t',result); fprintf(fileID,'%s',result{:}); fprintf(fileID,"\n"); end end end end end end %switch end end
end
% possible combination function end
fileID = fopen('Combfile.txt','wt'); for a=1:2 for z=3:4 last=ends{z};
for y=1:5 result{1}=ends{a}; switch(y)
case 1 for p=1:length(acid) result{lIndex+1}=acid{p}; rIndex=lIndex+1; funcomb(rIndex,result,acid,last,fileID); end
case 2 for p=1:length(acid) result{lIndex+1}=acid{p}; for q=1:length(acid) result{lIndex+1+1}=acid{q}; rIndex=lIndex+1+1; funcomb(rIndex,result,acid,last,fileID); end end
case 3 for p=1:length(acid) result{lIndex+1}=acid{p}; for q=1:length(acid) result{lIndex+1+1}=acid{q}; for r=1:length(acid) result{lIndex+1+1+1}=acid{r}; rIndex=lIndex+1+1+1; funcomb(rIndex,result,acid,last,fileID); end end end
case 4 for p=1:length(acid) result{lIndex+1}=acid{p}; for q=1:length(acid) result{lIndex+1+1}=acid{q}; for r=1:length(acid) result{lIndex+1+1+1}=acid{r}; for s=1:length(acid) result{lIndex+1+1+1+1}=acid{s}; rIndex=lIndex+1+1+1+1; funcomb(rIndex,result,acid,last,fileID); end end end end
case 5 for p=1:length(acid) result{lIndex+1}=acid{p}; for q=1:length(acid) result{lIndex+1+1}=acid{q}; for r=1:length(acid) result{lIndex+1+1+1}=acid{r}; for s=1:length(acid) result{lIndex+1+1+1+1}=acid{s}; for t=1:length(acid) result{lIndex+1+1+1+1+1}=acid{t}; rIndex=lIndex+1+1+1+1+1; funcomb(rIndex,result,acid,last,fileID); end end end end end end % switch end end end end status=fclose(fileID); status
This code is running continuously like never ending .Can anyone suggest me ,how to optimize the number of for loops.
Thanks uttam

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