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How to add new rows to text file with missing data?

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Cameron Spooner
Cameron Spooner 2016-7-4
关闭： MATLAB Answer Bot 2021-8-20
I have a txt file containing 4 tab delineated columns that are missing rows, like;
1, x, y, z
2, x, y, z
5, x, y, z
I am trying to write a script that will add the missing rows with the correct missing integer in the first column and and assign a 0 value to the other 3 columns, like;
1, x, y, z
2, x, y, z
3, 0, 0, 0
4, 0, 0, 0
5, x, y, z
What would be the easiest way to go about doing this?

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2016-7-4
s=importdata('fic.txt')
out=zeros(s(end,1),4)
out(s(:,1),:)=s

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