Brace indexing is not supported for variables of this type.

I have a csv file. in the function, this file should be read and then processed.

But i get error 'Dot indexing is not supported for variables of this type.'

How can i solve this? I attached my csv file.

Thnaks

%%
%Data Collection and Labeling
clc;
clear all;
labelPoints = {[2,50],[51,80]}; 
NoOfFailureModes = 2;
estimateRULFlags = [false, true]; 
path = 'Datasets/'; 
labels = {[categorical("OFF"),categorical("ON"),categorical("DUCT BLOCKAGE")],[categorical("OFF"),categorical("ON"),categorical("ROTOR IMBALANCE")]};

rawdata = cell(NoOfFailureModes);
data = cell(NoOfFailureModes);

for i = 1:NoOfFailureModes
    rawdata{i} = readtable([path 'Dataset' num2str(i) '.csv'],'Delimiter',','); %Read the downloaded csv file
    data{i} = dataParsing(rawdata{i},labelPoints{i},labels{i},i); %Parse the rawdata
end

function data = dataParsing(rawdata,labelPoints,labels,dataset)
    bias = 44;
    noOfDataPoints = length(rawdata.entry_id);
    labelPoints = [0 labelPoints noOfDataPoints];

    for i = 1:length(labelPoints)-1 
        Label(labelPoints(i)+1:labelPoints(i+1),:) = labels(i); %Create Labels for the data points
    end
    j = 1;

    if(dataset == 2)
        offset = 0;
    else
        offset = 2000;
    end

    for i = 1:noOfDataPoints
        text1 = strsplit(rawdata.field1{i},',');
        text2 = strsplit(rawdata.field2{i},',');
        text3 = strsplit(rawdata.field3{i},',');
        text4 = strsplit(rawdata.field4{i},',');
        text5 = strsplit(rawdata.field5{i},',');
        text6 = strsplit(rawdata.field6{i},',');
        var = zeros(length(text1)-1,6);
        flag = true;
        for k = 1:length(text1)-1 %to neglect the last comma, use -1 
           var(k,1) = str2num(text1{k})-bias;
           var(k,2) = str2num(text2{k})-bias;
           var(k,3) = str2num(text3{k})-bias;
           if(var(k,1) ~= -bias || var(k,2) ~= -bias || var(k,3) ~= -bias ) %Turning the device off and on will reset the first data set to all zeroes
               var(k,4) = str2num(text4{k})-bias;
               var(k,5) = str2num(text5{k})-bias;
               var(k,6) = str2num(text6{k})-bias;
           else
               flag = false;
               break;
           end
        end
        if(flag) %accept a valid datapoint
            data.Label(j,:) = Label(i);
            data.sno(j,:) = rawdata.entry_id(i) + offset;
            data.X(j,:) = [var(:,1);var(:,4)];
            data.Y(j,:) = [var(:,2);var(:,5)];
            data.Z(j,:) = [var(:,3);var(:,6)];
            j = j+1;
        end
    end

    data = struct2table(data);

end