获取显示值及其出现次数的数组,生成单独列出值的数组

我有一个数组,看起来像:

20  1
20  7
45  3
127 17
102 1
90  1
64  1

等…其中,左侧列显示灯光强度值,右侧列显示其出现的次数。我想要一个相应的单元格数组,它可以扩展数组,并根据每个值出现的次数分别列出每个值。同理(忽略左侧单元格列):

[]  20
[]  20
[]  20
[]  20
[]  20
[]  20
[]  20
[]  20
[]  45
[]  45
[]  45

% Determine the number of 10-minute intervals for which a light level is
% recorded (sum all the unique light levels and their repeats).  
no_light_levels = sum(repeat_arr(:, 2));
%
% 'geologger_data_all' records time of each light level reading and the
% light level.  
geologger_data_all{no_light_levels, 2} = []; 
geologger_data_all(1, 2) = {repeat_arr(1, 1)};
% 
k_out = 2;                                  % index for out arr.
for k = 2:length(repeat_arr)
    light_level = repeat_arr(k, 1);         % grab the light level
    appears = repeat_arr(k, 2);             % does it repeat?
    if appears == 1
        geologger_data_all(k_out, 2) = {light_level};   % record
        k_out = k_out + 1; 
    elseif appears > 1
        % Record the light level for the number of times it appears.  
        geologger_data_all(k_out:(k_out + appears - 1), 2) = {light_level};
        k_out = k_out + appears;            % advance index for out arr.  
    end
end
%

哪里 repeat_arr 看起来像这里显示的第一个格式化数组。提前感谢您的任何提示。