HOW TO RESHAPE 3D ARRAY WITH DIFFERENT DIRECTIONS?

      for i = 1:length(j)
       NETPLP(:,:,i)= [BPavg1(1,1,i), SPavg1(1,1,i), NETPLP1(1,1,i); BPavg2(1,1,i), SPavg2(1,1,i), NETPLP2(1,1,i); BPavg3(1,1,i), SPavg3(1,1,i), NETPLP3(1,1,i); BPavg4(1,1,i), SPavg4(1,1,i), NETPLP4(1,1,i); BPavg5(1,1,i), SPavg5(1,1,i), NETPLP5(1,1,i); BPavg6(1,1,i), SPavg6(1,1,i), NETPLP6(1,1,i); BPavg7(1,1,i), SPavg7(1,1,i), NETPLP7(1,1,i); BPavg8(1,1,i), SPavg8(1,1,i), NETPLP8(1,1,i)];
     end
       
      PL1 = reshape(permute(NETPLP(1,:,:),[1,3,2]), size(NETPLP(1,:,:),1)*size(NETPLP(1,:,:),3), 3);
      PL2 = reshape(permute(NETPLP(2,:,:),[1,3,2]), size(NETPLP(2,:,:),1)*size(NETPLP(2,:,:),3), 3);
      PL3 = reshape(permute(NETPLP(3,:,:),[1,3,2]), size(NETPLP(3,:,:),1)*size(NETPLP(3,:,:),3), 3);
      PL4 = reshape(permute(NETPLP(4,:,:),[1,3,2]), size(NETPLP(4,:,:),1)*size(NETPLP(4,:,:),3), 3);
      PL5 = reshape(permute(NETPLP(5,:,:),[1,3,2]), size(NETPLP(5,:,:),1)*size(NETPLP(5,:,:),3), 3);
      PL6 = reshape(permute(NETPLP(6,:,:),[1,3,2]), size(NETPLP(6,:,:),1)*size(NETPLP(6,:,:),3), 3);
      PL7 = reshape(permute(NETPLP(7,:,:),[1,3,2]), size(NETPLP(7,:,:),1)*size(NETPLP(7,:,:),3), 3);
      PL8 = reshape(permute(NETPLP(8,:,:),[1,3,2]), size(NETPLP(8,:,:),1)*size(NETPLP(8,:,:),3), 3);
      PL= [PL1;PL2;PL3;PL4;PL5;PL6;PL7;PL8];

LENGTH(J) = 20. IN WHICH I GOT

I WANT VALUES OF PL WITHOUT ASSIGNING THE VARIABLE PL1, PL2, P3, PL4, PL5, PL6, PL7 AND PL8.

PLEASE HELP ME.

[Rik]

This seems as simple as PL=NETPLP(1:6,:,:);

Why doesn't that work?

[Triveni]

I have tried this earlier but

PL=NETPLP(1:8,:,:)

PL(:,:,1) =

22 22.05 11.04

22 21.95 -13.96

20.95 21 11.06

21.05 21 -13.94

22 21.95 -13.96

22 20.95 -263.95

22.05 21 -263.95

20.95 21 11.06

I have to rearrange this array. I have to select 1st row from each array then 2nd row to each array and so on. then i have to merge all into single matrix.

[DGM]

What are the sizes of BPavg#, SPavg#, NETPLP#?

Answer 1

[DGM]

This is why using numbered variables instead of arrays is a bad idea.

No need for a loop. Depending on the size of the inputs, just address the arrays accordingly (pick one)

% assuming that BPavgN, SPavgN, NETPLPN are all mxnx20
NETPLP = [BPavg1(1,1,:), SPavg1(1,1,:), NETPLP1(1,1,:);
		BPavg2(1,1,:), SPavg2(1,1,:), NETPLP2(1,1,:);
		BPavg3(1,1,:), SPavg3(1,1,:), NETPLP3(1,1,:);
		BPavg4(1,1,:), SPavg4(1,1,:), NETPLP4(1,1,:);
		BPavg5(1,1,:), SPavg5(1,1,:), NETPLP5(1,1,:);
		BPavg6(1,1,:), SPavg6(1,1,:), NETPLP6(1,1,:);
		BPavg7(1,1,:), SPavg7(1,1,:), NETPLP7(1,1,:);
		BPavg8(1,1,:), SPavg8(1,1,:), NETPLP8(1,1,:)];

% if they are 1x1x20
NETPLP = [BPavg1, SPavg1, NETPLP1;
		BPavg2, SPavg2, NETPLP2;
		BPavg3, SPavg3, NETPLP3;
		BPavg4, SPavg4, NETPLP4;
		BPavg5, SPavg5, NETPLP5;
		BPavg6, SPavg6, NETPLP6;
		BPavg7, SPavg7, NETPLP7;
		BPavg8, SPavg8, NETPLP8];

The rest seems simple enough

% reshape the array
PL = reshape(permute(NETPLP,[3 1 2]),[],3);