Hello every one help me on this code i try but its throw syntex error?

[erahul99]

hello every one thanks your support i try to earn afl programing please give me suggeition for good afl learning book .

[fxshrat]

Please do not post pictures of code only!
Post code within code tags in addition to pictures (see here).

Also post fully reproducible code without missing variables.

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Your first IIf call has one bracket too many and at the end you appear to have 2 brackets too less.
BTW, are you sure you need subscripts??
Also you look into the future via [1].

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BTW you can look up further details of an error message in help very easily:

[erahul99]

QQES=0.0;
QQES1=IIf((QQES OR QUP<nz(QQES[1]) , 1 ,IIf( QUP OR QQEF>nz(QQES[1]) and QQEF[1]<nz(QQES[1]),1 ,IIf( QDN OR  QDN>nz(QQES[1]),1,IIf( QDN OR QQEF<nz(QQES[1]) and QQEF[1]>nz(QQES[1]),1,IIf( QUP OR nz(QQES[1]),1,0)));

i send you code try but not solve .