How do i band a vector into sized brackets

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Nick Keepfer 2018-2-13

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https://ww2.mathworks.cn/matlabcentral/answers/382301-how-do-i-band-a-vector-into-sized-brackets

评论： Star Strider 2018-2-13

I have a matrix R(i,j), where R(i,:) gives the positions of several objects at a given timestep j.

Say I have at a given timestep R(i,:) = [1 2 3 4 5 6 7] and I wish to create bands where I could collect terms say between 1-3 and 4-7.

i.e Something that would pull R(i,j) into two seperate arrays where one contains the values between 1-3 and another with the values 4-7, keeping the timesteps intact.

Can anyone think of an easy way to do this?

Thanks in advance :)

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Answer 1

Star Strider 2018-2-13

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在 MATLAB Online 中打开

I am not certain what you are referring to.

Two possibilities:

R(i,:) = [1 2 3 4 5 6 7];
V1{i} = R(i, (R(i,:)>=1) & (R(i,:)<=3))             % Testing For Values (Cell Array)
V2{i} = R(i, (R(i,:)>=4) & (R(i,:)<=7))             % Testing For Values (Cell Array)
X1(i,:) = R(i,1:3)                                  % Addressing Columns
X2(i,:) = R(i,4:7)                                  % Addressing Columns