trying to read text file with matlab

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Kobi 2014-12-3

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https://ww2.mathworks.cn/matlabcentral/answers/165325-trying-to-read-text-file-with-matlab

评论： per isakson 2014-12-4

在 MATLAB Online 中打开

for a file such as this: http://iopscience.iop.org/0266-5611/17/6/301/media/dielTM_dec4f.exp

i created this function: https://dl.dropboxusercontent.com/u/38094905/txt2mat.m

the function give me unexpected resault so i'm not so sure that i read it correctly i have doubts about this section:

    % filter messurements by frequancy
    frequancy=frequencies(k);    % [GHz]
    loc_f=find(freq==frequancy);
    tx_pos=tx_pos(loc_f);
    rx_pos=rx_pos(loc_f);
    freq=freq(loc_f);
    reEtot=reEtot(loc_f);
    imEtot=imEtot(loc_f);
    reEinc=reEinc(loc_f);
    imEinc=imEinc(loc_f);
    % taking under considiration the incident E wave
    Etot=reEtot+1i*imEtot;
    Einc=reEinc+1i*imEinc;
    Escat=Etot-Einc;
    %%build the matrix rx_pos x tx_pos
    H{k}=zeros(max(rx_pos),max(tx_pos));
    LinInd=sub2ind(size(H{k}),rx_pos,tx_pos);
    H{k}(LinInd)=Escat;

on the exp file listed above the first column is the emmiting antenna index the seond column is the reciving antenna index the third column is the frequancy the other columns are the electric field (in this i'm sure)

i need to seperate each measurement by the frequancy and to recive a 2D matrix with x axis for the emmiting antenna and y axis for the reciveing antenna for this i use this:

    %%build the matrix rx_pos x tx_pos
    *H{k}=zeros(max(rx_pos),max(tx_pos));
    LinInd=sub2ind(size(H{k}),rx_pos,tx_pos);
    H{k}(LinInd)=Escat;*

from this i recive matrix of zeros that is greater then what i need i need to fill the Escat values in the H matrix according to their index