Converting array to column matrix

2022 3 8
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更新时间：2022 3 8
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How can we convert the below array (50*50) into a column array which only has the first column (50*1)

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Arif Hoq
Arif Hoq 2022-3-8
编辑：Arif Hoq 2022-3-8

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use colon(:). each variable will be forced to be a column vector
col_vector=Eflevel(:)
if you want extract first 50 data(50*1), then
output=col_vector(1:50,1)

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Amy Topaz
Amy Topaz 2022-3-8
Yeah tried that but it is getting converted into 2500*1. I need just the first column (50*1)
Arif Hoq
Arif Hoq 2022-3-8
编辑：Arif Hoq 2022-3-8
do you want first 50 rows ? please attach your data. or try
output2=Eflevel(1:50,1)

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