Rearrange my Matrix
in [Matlab]
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From: us on 17 May 2010 14:22 "roya olyazadeh" <roya2543(a)gmail.com> wrote in message <hss0tk$af1$1(a)fred.mathworks.com>... > If Q = > 2 3 4 > 4 5 6 > 7 8 9 > >If i =2 > Q = > > 2 0 3 4 > 0 0 0 0 > 4 0 5 6 > 7 0 8 9 > > Now what is the solution ? depends on the rule you (might) have... otherwise, one of the solutions t=true; f=false; sm=[ 2 3 4 4 5 6 7 8 9 ]; btmpl=[ t f t t f f f f t f t t t f t t ]; bm=zeros(size(btmpl)); bm(btmpl)=sm; us
From: Nathan on 17 May 2010 14:47 On May 17, 11:12 am, "roya olyazadeh" <roya2...(a)gmail.com> wrote: > If Q = > 2 3 4 > 4 5 6 > 7 8 9>If i =2 > > Q = > > 2 0 3 4 > 0 0 0 0 > 4 0 5 6 > 7 0 8 9 > > Now what is the solution ? A generalized solution for a given row i and column j: Q = [2 3 4;4 5 6;7 8 9]; Q1 = zeros(size(Q)+1) i=2; j=3; tmp = 1:length(Q1); tmp1 = 1:length(Q1); tmp(i)=[];tmp1(j)=[]; Q1(tmp,tmp1) = Q %%%%%%%%%%%%%%%%%%%%% Q1 = 2 3 0 4 0 0 0 0 4 5 0 6 7 8 0 9 -Nathan
From: roya olyazadeh on 18 May 2010 04:23 Nathan <ngreco32(a)gmail.com> wrote in message <19809f1a-3f22-4c1d-aec4-959dbac0153f(a)42g2000prb.googlegroups.com>... > On May 17, 11:12 am, "roya olyazadeh" <roya2...(a)gmail.com> wrote: > > If Q = > > 2 3 4 > > 4 5 6 > > 7 8 9>If i =2 > > > > Q = > > > > 2 0 3 4 > > 0 0 0 0 > > 4 0 5 6 > > 7 0 8 9 > > > > Now what is the solution ? > > A generalized solution for a given row i and column j: > > Q = [2 3 4;4 5 6;7 8 9]; > Q1 = zeros(size(Q)+1) > i=2; j=3; > tmp = 1:length(Q1); > tmp1 = 1:length(Q1); > tmp(i)=[];tmp1(j)=[]; > Q1(tmp,tmp1) = Q > %%%%%%%%%%%%%%%%%%%%% > Q1 = > 2 3 0 4 > 0 0 0 0 > 4 5 0 6 > 7 8 0 9 > > -Nathan I tried to use this . for i = 1 : length(stn) % number of station if fix1(i)==1 % If station is fixed Q1 = zeros(size(Qx)+1); tmp = 1:length(Q1); tmp1 = 1:length(Q1); tmp(i)=[];tmp1(i)=[]; Q1(tmp,tmp1) = Qx; end end Any time fix1(i) matrix = 1 It should do these operations. but it gave me just last result . In this example i = 1 , 3,4 So Q1 must be something like this : 0 0 0 0 0 0 0 2 3 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 4 5 0 0 6 0 7 8 0 0 9
From: roya olyazadeh on 18 May 2010 04:52 My mistake... Q1 must be like this : > > In this example i = 1 , 3,4 > > So Q1 must be something like this : > > 0 0 0 0 0 0 > 0 2 0 0 3 4 > 0 0 0 0 0 0 > 0 0 0 0 0 0 > 0 4 0 0 5 6 > 0 7 0 0 8 9
From: Jos (10584) on 18 May 2010 05:07
"roya olyazadeh" <roya2543(a)gmail.com> wrote in message <hstkfj$sbc$1(a)fred.mathworks.com>... > My mistake... Q1 must be like this : > > > > In this example i = 1 , 3,4 > > > > So Q1 must be something like this : > > > > 0 0 0 0 0 0 > > 0 2 0 0 3 4 > > 0 0 0 0 0 0 > > 0 0 0 0 0 0 > > 0 4 0 0 5 6 > > 0 7 0 0 8 9 Easy enough with the right tools: % data Q = [2 3 4 ; 4 5 6 ; 7 8 9] ; ix = [1 2 2] ; % your ix was defined with reference to the outcome % engine Q1 = insertrows(Q,0,ix-1) % note the -1 Q1 = insertrows(Q1.',0,ix-1).' % note the transpose twice INSERTROWS can be found here: http://www.mathworks.com/matlabcentral/fileexchange/9984 hth Jos |