How to Set End Limits for Csvread?

The documentation for csvread is accurate but confusing and somewhat non-standard for matlab. The basic syntax is:

a = csvread(filename)

And if you want to specify a range, you can use:

a = csvread(filename,R1,C1,[R1 C1 R2 C2])

where the R and C are the rows and columns of interest. The trick is that the row and column values are zero-indexed, which is unusual in matlab. Also note that if you are specifying a range for reading, the first components of the array argument are the same as the other arguments.

For example, consider a file "test.csv" that looks like:

1,2,3,4
1,2,3,4
1,2,3,4
1,2,3,4

The basic read operation is:

>> a = csvread('testcsv.csv')

a =

 1     2     3     4
 1     2     3     4
 1     2     3     4
 1     2     3     4

If you want to start reading at column 2, specify row 0 and column 1:

>> a = csvread('testcsv.csv',0,1)

a =

 2     3     4
 2     3     4
 2     3     4
 2     3     4

And if you want to stop after column 3 while including all rows (i.e. up to row 4):

>> a = csvread('testcsv.csv',0,1,[0 1 3 2])

a =

 2     3
 2     3
 2     3
 2     3

In your specific case:

>> a = csvread('testcsv2.csv')

a =

 1     2     3     4     5
 6     7     8     9    10
11    12    13    14    15

>> a = csvread('testcsv2.csv',1,1,[1 1 2 3])

a =

 7     8     9
12    13    14