Доброго времени суток. Думаю, комментарии излишни, взгляните на код и, пожалуйста, объясните логику возникновения ошибки...
7 death_records = sql.query('SELECT height, weight, age, death_date, surgery_date FROM heart_surgery WHERE death_date is not null LIMIT 10;')(2:end, :);
8
9 death_records(:, 1)
10 death_records(:, 2)
11 cell2mat(death_records(:, 1))
12 cell2mat(death_records(:, 2))
Вывод:
ans =
{
[1,1] = 168
[2,1] = 156
[3,1] = 167
[4,1] = 164
[5,1] = 170
[6,1] = 156
[7,1] = 155
[8,1] = 174
[9,1] = 173
[10,1] = 177
}
ans =
{
[1,1] = 65
[2,1] = 50
[3,1] = 53
[4,1] = 60
[5,1] = 80
[6,1] = 69
[7,1] = 63
[8,1] = 86
[9,1] = 68
[10,1] = 108
}
ans =
168
156
167
164
170
156
155
174
173
177
error: cat: dimension mismatch
error: called from
cell2mat at line 83 column 11
wtf at line 12 column 1
