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I have this subset table that I've written to the attached csv. I want to sort the table such that if a user_id's score ever gets the max score all row entries for that user_id go in 1 table and rows for user_id's score that never get the max_score go in another table. Class_section is categorical and the other items are double.

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Voss
Voss 2024년 4월 15일
Ran in:

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Ran in:
T = readtable('instruct_04152024_update.csv');
disp(T)
user_id class_section score max_score __________ _______________ _____ _________ 2.2634e+05 {'Instructor1'} 5 5 1.3878e+06 {'Instructor4'} 0 5 1.3878e+06 {'Instructor4'} 0 5 1.3878e+06 {'Instructor4'} 0 5 1.3878e+06 {'Instructor4'} 0 5 1.5707e+06 {'Instructor3'} 0 5 1.5707e+06 {'Instructor3'} 5 5 1.7865e+06 {'Instructor5'} 5 5 1.7884e+06 {'Instructor1'} 5 5 1.7895e+06 {'Instructor2'} 0 5 1.7895e+06 {'Instructor2'} 5 5 1.7897e+06 {'Instructor2'} 5 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 5 5 1.7898e+06 {'Instructor1'} 0 5 1.7898e+06 {'Instructor1'} 5 5 1.7909e+06 {'Instructor4'} 0 5 1.7909e+06 {'Instructor4'} 5 5 1.7912e+06 {'Instructor3'} 0 5 1.7912e+06 {'Instructor3'} 0 5 1.7926e+06 {'Instructor2'} 5 5 1.7926e+06 {'Instructor6'} 5 5 1.7939e+06 {'Instructor2'} 5 5 1.7939e+06 {'Instructor6'} 5 5 1.7946e+06 {'Instructor3'} 0 5 1.7947e+06 {'Instructor3'} 5 5 1.7948e+06 {'Instructor2'} 5 5 1.796e+06 {'Instructor3'} 2 5 1.796e+06 {'Instructor3'} 2 5 1.796e+06 {'Instructor3'} 1 5 1.796e+06 {'Instructor3'} 5 5 1.7968e+06 {'Instructor4'} 5 5 1.797e+06 {'Instructor4'} 5 5 1.7979e+06 {'Instructor3'} 1 5 1.7979e+06 {'Instructor3'} 5 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7986e+06 {'Instructor6'} 5 5 1.7997e+06 {'Instructor3'} 0 5 1.7997e+06 {'Instructor3'} 0 5 1.7997e+06 {'Instructor3'} 5 5 1.8001e+06 {'Instructor3'} 5 5 1.8041e+06 {'Instructor4'} 0 5 1.8041e+06 {'Instructor4'} 5 5 1.8044e+06 {'Instructor5'} 5 5 1.8051e+06 {'Instructor3'} 5 5 1.806e+06 {'Instructor3'} 0 5 1.806e+06 {'Instructor3'} 5 5 1.81e+06 {'Instructor6'} 5 5 1.8102e+06 {'Instructor5'} 0 5 1.8102e+06 {'Instructor5'} 0 5 1.8102e+06 {'Instructor5'} 0 5 1.8102e+06 {'Instructor5'} 5 5 1.8119e+06 {'Instructor2'} 5 5 1.8144e+06 {'Instructor4'} 0 5 1.8144e+06 {'Instructor4'} 0 5 1.8144e+06 {'Instructor4'} 0 5 1.8144e+06 {'Instructor4'} 0 5 1.8255e+06 {'Instructor4'} 5 5 1.8375e+06 {'Instructor1'} 5 5
idx = ismember(T.user_id, T.user_id(T.score == T.max_score));
T1 = T(idx,:);
T2 = T(~idx,:);
disp(T1)
user_id class_section score max_score __________ _______________ _____ _________ 2.2634e+05 {'Instructor1'} 5 5 1.5707e+06 {'Instructor3'} 0 5 1.5707e+06 {'Instructor3'} 5 5 1.7865e+06 {'Instructor5'} 5 5 1.7884e+06 {'Instructor1'} 5 5 1.7895e+06 {'Instructor2'} 0 5 1.7895e+06 {'Instructor2'} 5 5 1.7897e+06 {'Instructor2'} 5 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 0 5 1.7898e+06 {'Instructor2'} 5 5 1.7898e+06 {'Instructor1'} 0 5 1.7898e+06 {'Instructor1'} 5 5 1.7909e+06 {'Instructor4'} 0 5 1.7909e+06 {'Instructor4'} 5 5 1.7926e+06 {'Instructor2'} 5 5 1.7926e+06 {'Instructor6'} 5 5 1.7939e+06 {'Instructor2'} 5 5 1.7939e+06 {'Instructor6'} 5 5 1.7947e+06 {'Instructor3'} 5 5 1.7948e+06 {'Instructor2'} 5 5 1.796e+06 {'Instructor3'} 2 5 1.796e+06 {'Instructor3'} 2 5 1.796e+06 {'Instructor3'} 1 5 1.796e+06 {'Instructor3'} 5 5 1.7968e+06 {'Instructor4'} 5 5 1.797e+06 {'Instructor4'} 5 5 1.7979e+06 {'Instructor3'} 1 5 1.7979e+06 {'Instructor3'} 5 5 1.7986e+06 {'Instructor6'} 5 5 1.7997e+06 {'Instructor3'} 0 5 1.7997e+06 {'Instructor3'} 0 5 1.7997e+06 {'Instructor3'} 5 5 1.8001e+06 {'Instructor3'} 5 5 1.8041e+06 {'Instructor4'} 0 5 1.8041e+06 {'Instructor4'} 5 5 1.8044e+06 {'Instructor5'} 5 5 1.8051e+06 {'Instructor3'} 5 5 1.806e+06 {'Instructor3'} 0 5 1.806e+06 {'Instructor3'} 5 5 1.81e+06 {'Instructor6'} 5 5 1.8102e+06 {'Instructor5'} 0 5 1.8102e+06 {'Instructor5'} 0 5 1.8102e+06 {'Instructor5'} 0 5 1.8102e+06 {'Instructor5'} 5 5 1.8119e+06 {'Instructor2'} 5 5 1.8255e+06 {'Instructor4'} 5 5 1.8375e+06 {'Instructor1'} 5 5
disp(T2)
user_id class_section score max_score __________ _______________ _____ _________ 1.3878e+06 {'Instructor4'} 0 5 1.3878e+06 {'Instructor4'} 0 5 1.3878e+06 {'Instructor4'} 0 5 1.3878e+06 {'Instructor4'} 0 5 1.7912e+06 {'Instructor3'} 0 5 1.7912e+06 {'Instructor3'} 0 5 1.7946e+06 {'Instructor3'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.7979e+06 {'Instructor6'} 0 5 1.8144e+06 {'Instructor4'} 0 5 1.8144e+06 {'Instructor4'} 0 5 1.8144e+06 {'Instructor4'} 0 5 1.8144e+06 {'Instructor4'} 0 5

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Sunshine
Sunshine 2024년 4월 15일
Thank you so much for this quick answer.
Voss
Voss 2024년 4월 15일
You're welcome!

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도움말 센터 및 File Exchange에서 Shifting and Sorting Matrices에 대해 자세히 알아보기

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Sunshine
Sunshine
2024년 4월 15일

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Voss
Voss
2024년 4월 15일

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