matlab - How to automatically loop over the combinations -
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new version:
the edited part of main program , function
aid=[30,50,52,53,54,56,57,72,75,77]; sid=[30,50,52,53,54,56,57,72,75,77]; [aid,sid]=meshgrid(aid,sid) myfunction=@(sid,aid)myfunc(blink,sid,aid); [rss_dbm1,rss_dbm2,rss_dbm3,rss_dbm4,y1,y2,y3,y4]=arrayfun(blink,aid,sid) function
function [rss_dbm1,rss_dbm2,rss_dbm3,rss_dbm4,y1,y2,y3,y4] = arrayfun(blink,aid,sid) i=1:length(blinksetlist) s=cell2mat(blinksetlist(i)); j=1:length(s) if s(j).aid==aid & s(j).sid==sid if s(j).anchorchan==0 & s(j).sourcechan==0 y=s(j).agc; rss_db1(i)= -(33+y*(89-33)/(29-1)); else rss_db1(i)=0; isempty(rss_db1(i)) end if s(j).anchorchan==0 & s(j).sourcechan==1 y=s(j).agc; rss_db2(i)= -(33+y*(89-33)/(29-1)); else rss_db2(i)=0; isempty(rss_db2(i)) end if s(j).anchorchan==1 & s(j).sourcechan==0 y=s(j).agc; rss_db3(i)= -(33+y*(89-33)/(29-1)); else rss_db3(i)=0; isempty(rss_db3(i)) end if s(j).anchorchan==1 & s(j).sourcechan==1 y=s(j).agc; rss_db4(i)= -(33+y*(89-33)/(29-1)); else rss_db4(i)=0; isempty(rss_db4(i)) end end end end rss_db1(rss_db1==0)=[]; rss_db2(rss_db2==0)=[]; rss_db3(rss_db3==0)=[]; rss_db4(rss_db4==0)=[]; y1=std(rss_db1); y2=std(rss_db2); y3=std(rss_db3); y4=std(rss_db4); rss_dbm1=sum(rss_db1(:))/length(rss_db1); rss_dbm2=sum(rss_db2(:))/length(rss_db2); rss_dbm3=sum(rss_db3(:))/length(rss_db3); rss_dbm4=sum(rss_db4(:))/length(rss_db4); disp([sprintf('the rssi value a-chan 0 , s-chan 0 %0.0f',rss_dbm1)]); disp([sprintf('the rssi value a-chan 0 , s-chan 1 %0.0f',rss_dbm2)]); disp([sprintf('the rssi value a-chan 1 , s-chan 0 %0.0f',rss_dbm3)]); disp([sprintf('the rssi value a-chan 1 , s-chan 1 %0.0f',rss_dbm4)]); and output followed error as
aid = columns 1 through 10 30 50 52........ 30 50 52 30 50 52 . . sid = columns 1 through 10 30 30 30 50 50 50 52 52 52...... . . . ??? undefined function or variable "rss_db1". error in ==> arrayfun @ 54 rss_db1(rss_db1==0)=[];
error in ==> main_reduced @ 38 [rss_dbm1,rss_dbm2,rss_dbm3,rss_dbm4,y1,y2,y3,y4]=arrayfun(blink,aid,sid)
but want result
result combinations example: aid=30 sid=50 , aid=50 sid=54 , aid= 54 sid=57 .......
the rss value a-chan 0 , s-chan 0 -68 % combination of aid=30 sid=50 rss value a-chan 0 , s-chan 1 -73 % pairs of anchor , source channel (0,0),(0,1),(1,0),(1,1) rss value a-chan 1 , s-chan 0 -73 rss value a-chan 1 , s-chan 1 -76 rss value a-chan 0 , s-chan 0 -68 % combination of aid=50 sid=54 rss value a-chan 0 , s-chan 1 -73% pairs of anchor , source channel (0,0),(0,1),(1,0),(1,1) rss value a-chan 1 , s-chan 0 -73 rss value a-chan 1 , s-chan 1 -76 rss value a-chan 0 , s-chan 0 -68 % combination of aid=54 sid=57 rss value a-chan 0 , s-chan 1 -73 % pairs of anchor , source channel (0,0),(0,1),(1,0),(1,1) rss value a-chan 1 , s-chan 0 -73 rss value a-chan 1 , s-chan 1 -76 rss_dbm1 =-68 rss_dbm2 =-72.8621 rss_dbm3 =-73 rss_dbm4 = -76 rss_dbm1 =-68 rss_dbm2 =-72.8621 rss_dbm3 =-73 rss_dbm4 = -76 rss_dbm1 =-68 rss_dbm2 =-72.8621 rss_dbm3 =-73 rss_dbm4 = -76 note : @ times channel pair combinations or aid & sid combinations not exist, in case returns nan ( that's why used isempty)
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first of appreciate whoever sees post , try giving solution.thanks in advance
my questions follows,
a part of main program
aid=30; sid=50; [rss_dbm1,rss_dbm2,rss_dbm3,rss_dbm4,y1,y2,y3,y4]=sample(blink,aid,sid)
note: aid has different id's 30,50,52,54,55,57 (same sid) sid has different id's 30,50,52,54,55,57 ( same aid)
here aid , sid manually entered user check below anchorchannel , source channel condition , check if such combination exist display rss values if not return nan. calling function
function [rss_dbm1,rss_dbm2,rss_dbm3,rss_dbm4,y1,y2,y3,y4]=sample(blink,aid,sid) i=1:length(blink) %blink=<500x1 cell> inside several blinks present s=cell2mat(blink(i)); % information on aid,sid,agc j=1:length(s) if s(j).aid==aid && s(j).sid==sid if s(j).anchorchannel==0 && s(j).sourcechannel==0 %anchor-source channel y=s(j).agc; %agc present in every blink calculate rss %combination rss_db1(i)= -(33+y*(89-33)/(29-1)); else rss_db1(i)=0; isempty(rss_db1(i)) end if s(j).anchorchannel==0 && s(j).sourcechannel==1 y=s(j).agc; rss_db2(i)= -(33+y*(89-33)/(29-1)); else rss_db2(i)=0; isempty(rss_db2(i)) end if s(j).anchorchannel==1 && s(j).sourcechannel==0 y=s(j).agc; rss_db3(i)= -(33+y*(89-33)/(29-1)); else rss_db3(i)=0; isempty(rss_db3(i)) end if s(j).anchorchan==1 && s(j).sourcechan==1 y=s(j).agc; rss_db4(i)= -(33+y*(89-33)/(29-1)); else rss_db4(i)=0; isempty(rss_db4(i)) end end end end rss_db1(rss_db1==0)=[]; rss_db2(rss_db2==0)=[]; rss_db3(rss_db3==0)=[]; rss_db4(rss_db4==0)=[]; y1=std(rss_db1); y2=std(rss_db2); y3=std(rss_db3); y4=std(rss_db4); rss_dbm1=sum(rss_db1(:))/length(rss_db1); rss_dbm2=sum(rss_db2(:))/length(rss_db2); rss_dbm3=sum(rss_db3(:))/length(rss_db3); rss_dbm4=sum(rss_db4(:))/length(rss_db4); disp([sprintf('the rss value a-chan 0 , s-chan 0 %0.0f',rss_dbm1)]); disp([sprintf('the rss value a-chan 0 , s-chan 1 %0.0f',rss_dbm2)]); disp([sprintf('the rss value a-chan 1 , s-chan 0 %0.0f',rss_dbm3)]); disp([sprintf('the rss value a-chan 1 , s-chan 1 %0.0f',rss_dbm4)]); now problem how automatically check different combinations of aid , sid without giving user input ?. if make sense should loop on every combinations , return "rss" result possible combinations of aid sid anchor channel , source channel
result 1 combination: aid=30 sid=50
the rss value a-chan 0 , s-chan 0 -68 rss value a-chan 0 , s-chan 1 -73 rss value a-chan 1 , s-chan 0 -73 rss value a-chan 1 , s-chan 1 -76 rss_dbm1 =-68 rss_dbm2 =-72.8621 rss_dbm3 =-73 rss_dbm4 = -76 y1 = 1.4142 y2 = 1.4072 y3 = 0 y4 = 1.1547 the above result 1 aid(30) sid(50) combination.but want loop on aid=50 sid=52, aid=52 sid=55, aid=57 sid=54 these examples of pairs. want result above output, except should include pairs mentioned ,with 4 different channel combinations
note:the output above combination must included below mentioned combinations too. example:aid=50 sid=52,aid=52 sid=55,aid=57 sid=54 anchor,source channel pairs (0,0),(0,1),(1,0),(1,1) in few cases anchor source channel pairs not exist automatically returns '0'or'nan'
suppose have function takes sid , aid arguments , returns single struct data need:
res = function sample(blink, aid, sid) as said, res here struct fields rss_dbm1, rss_dbm2, etc...
and have 2 arrays:
sids = [30,50,52,54,55,57]; aids = [30,50,52,54,55,57]; to obtain pairs of sids , aids can use meshgrid function:
[sid aid] = meshgrid(sids, aids); and call function each pair can use arrayfun function:
fn = @(sid, aid) sample(blink, sid, aid); data = arrayfun(fn, sid, aid); data here length(sids) x length(aids) structure matrix. used here anonymous function (lambda expression) partial application of first argument of sample function.
if don't want change function, can use is:
fn = @(sid, aid) sample(blink, sid, aid); [rss_dbm1,rss_dbm2,rss_dbm3,rss_dbm4,y1,y2,y3,y4] = arrayfun(fn, sid, aid); in case each returned variable length(sids) x length(aids) array.
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