Matlab-读取txt文档并删除cell元胞数组中的NaN项

file_id = 'xxx.txt';
data1 = readtable(file_id);
data2 = data1{91:end,1};

x=1;
for i=1:1:length(data2)
result1 = split(num2str(data2{i,1}), ' ');% 分割元胞数组，以空格为界限
result=result1(~cellfun('isempty', result1));% 删除掉NaN行/列
x1(x,1)=str2num(result{1,1});% 字符串转为num并赋值
x1(x,2)=str2num(result{2,1});
x1(x,3)=str2num(result{3,1});
x1(x,4)=str2num(result{4,1});
x=x+1;
end