Why boxplot grouping variable plotted out of order?

조회 수: 23(최근 30일)
Why is the grouping variable not plotted in the order I've listed it in my code? How do I make it plot sequentially? Please compare the figure with its code.
group = cell(1,2);
doseloop = 192;
for loop = 1:height(newvoldata{doseloop})
if strcmpi('blurred',newvoldata{doseloop}.DistributionType(loop))
switch newvoldata{doseloop}.StudyID(loop)
case {1,2,3,4,5,6,7,8,9,10,13,36} %12
group{2} = [group{2}; 'Grade 0'];
case {14,15,19,20,21,22,23,29,30,31,34,37,38,39} % 14
group{2} = [group{2}; 'Grade 1'];
case {11,12,16,17,18,25,26,27,28,32,33,35,40} % 13
group{2} = [group{2}; 'Grade 2'];
case 24 % 1
group{2} = [group{2}; 'Grade 3'];
error('Our code didn''t work as planned.')
group{1} = [group{1}; newvoldata{doseloop}.Dose(loop)];
title([organofinterest,' Blurred DVH Comparison for 40 Pt Given GU Toxicity'])
ylabel('Percent Volumes receiving given dose, %')

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Walter Roberson
Walter Roberson 2018년 2월 28일
1 to 10 are Grade 0. 11 is Grade 2. If the labels are to be displayed according to numeric order of the source then that is going to result in Grade 0 then Grade 2 appearing, exactly as happens.
boxplot has no knowledge of how the data was computed. If you had rearranged the case order or scrambled the numeric order of the numbers within the case then the computed data would be the same and the display would be the same.
  댓글 수: 5
Walter Roberson
Walter Roberson 2018년 10월 19일
Use the syntax
B = categorical(A,valueset,catnames)
The sorting will be by the value you associate in valueset, but the names will be what you give in catnames.

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