To subset a matrix on columns in MATLAB, you can use the colon operator. Here is an example:
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In this example, we have created a matrix A
with three columns. To subset the matrix on columns 1 and 3, we use the :
operator to select all rows and specify the column indices we want to keep inside brackets.
The resulting matrix B
will have the same number of rows as A
, but only columns 1 and 3 will be included.
Note that you can also use the colon operator by itself to select all columns of a matrix. For example:
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In this case, B
will be equal to A
, since we selected all columns.
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