Selecting rows periodically from csv data file.

I have a table of data as csv file. I want to pick every 10th row and discard all other rows. How can this be done in Matlab? I do not have access to function tableControl.

Answer 1

[Voss]

You can read the whole thing using, for instance, readtable

t = readtable('test.csv');

or readmatrix

M = readmatrix('test.csv');

and then use indexing along the rows to keep just the rows you want:

t_keep = t(1:10:end,:) % perhaps keep every 10 rows, starting with row 1

t_keep = 3×1 table
    Var1
    ____

      1 
     11 
     21 

t_keep = t(10:10:end,:) % or perhaps keep every 10 rows, starting with row 10

t_keep = 2×1 table
    Var1
    ____

     10 
     20 

M_keep = M(1:10:end,:) % perhaps keep every 10 rows, starting with row 1

M_keep = 3×1

1 11 21

M_keep = M(10:10:end,:) % or perhaps keep every 10 rows, starting with row 10

M_keep = 2×1

10 20