Add rows to table, not append
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I have a table and need to add rows to it, but I do not want to append them to the end of the table. For instance, I have a table with 5 rows and I need to add a row, but I need the new row to be the 2nd row and all the successive rows to move down one.
回答（1 个）
One approach is to duplicate the table by first moving everything from the second row to the end down one, then inserting the new row into it —
T1 = array2table(randi(9 ,10, 3))
newRow = randi([10 19], 1, 3)
T1{3:end+1,:} = T1{2:end,:}; % Expand Table Row Length
T1{2,:} = newRow % Insert New Row To Create Desired REsult
.
1 个评论
Siddharth Bhutiya
2022-1-5
Another way to do it would be to use vertcat.
>> T1 = array2table(randi(9 ,10, 3))
T1 =
10×3 table
Var1 Var2 Var3
____ ____ ____
7 4 3
1 4 7
3 7 6
1 8 2
1 2 2
8 5 5
7 5 9
3 6 4
9 7 6
1 7 3
>> i = 2; % Insert a new second row
>> data = {10 12 11}; % new data for the second row
>> T1 = [T1(1:i-1,:); data; T1(i:end,:)]
T1 =
11×3 table
Var1 Var2 Var3
____ ____ ____
7 4 3
10 12 11
1 4 7
3 7 6
1 8 2
1 2 2
8 5 5
7 5 9
3 6 4
9 7 6
1 7 3
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2021-12-19
2022-1-5
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