set of ranges in vector.

I have a pool of 30 vectors with a set of values in them much like this(although much longer):

V = [a b c d e...]

V1 = [3.4 20.2 75.6 91.3 120.7...]

V2 = [3.2 21.7 76.6 94.3 122.7...]

V3 = [4.1 23.8 78.1 93.9 125.8...]

and so on.

As it can be seen, each value fluctuates slightly and within a range.

now I have a range of acceptable values for a b c d and e like this:

a accept = [2 5]; b accept = [20 25]; c accept = [70 80]; d accept = [90 100]; e accept = [120 130]

I need to be able to pick one vector (say V1) and check if all the values for a, b, c, d and e are within range.

I know how to do that for a single value this way:

    inRange = (V1>2)&(V1<5);

    ACCEPT V1 = V1(inRange);

This will spit out ACCEPT V1 = 3.4; as 3.4 is within range thus it makes it to output. Where I am stuck is: how can I make it look for multiple ranges so all the values will make it through (provided they fall in the range)?

another thing: I am trying to use this to filter out phantom readings(I shall call them PH), as in some of the vectors i have random extras readings that fall out of range such as:

V4 = [1.3 3.2 22.9 40.5 74.0 97.7 125.1 203.3...]

In other words: V4 = [PH 3.2 22.9 PH 74.0 97.7 125.1 PH...]

my end goal is to be able to run those ranges and get a corrected vector out that eliminates those phantom readings, getting ACCEPT V4 = [3.2 22.9 74.0 97.7 125.1...]

[Amit]

what is the size of the vectors? Are they big?

Answer 1

[Chetan Rawal]

 maximums = [5 25 80 100 130];
 minimums = [2 20 70 90 120]; 
 yesOrNoVector = (v1<maximums)&(v1>minimums); 
% this outputs a vector or 0's and 1's where 1 means accept

 acceptOrReject = all(yesOrNoVector); 
% this is your answer. It returns 0 if at least one element of V1 is out of range. See >>doc all

Answer 2

[Amit]

minV = [2,20,70,90,120];
maxV = [5,25,80,100,130];
n = length(minV);
%I dont want to store each value seperately. 
%acceptV is matrix with each row equivalent to acceptV1 etc.
acceptV = zeros(30,n);
for j = 1:30 % you said you have 30 vectors (I am assuming row vectors)
  % You should initialize these before loop in all Vi's are same length 
  V = eval(['V' num2str(j)]);
  Vx = repmat(V,n,1);
  xx = (Vx - repmat(minV',1,numel(V))) > 0 & (-Vx + repmat(maxV',1,numel(V))) > 0;
  acceptV(j,:) = (Vx(xx))';
end

If you badly want accept_V1 accept_V2 etc, you can see the treatment I did using eval (however I'll not advise it)