It is being used to extract a specific column from a 2D array.
So your example would extract column 0 (the first column) from the first 2048 rows (0 to 2047). Note however that this syntax will only work for numpy arrays and not general python lists.
More Related Contents:
- How to create a list of list from the given input? [closed]
- How to find all occurrences of an element in a list
- How does assignment work with list slices?
- Slicing a list in Python without generating a copy
- What is the difference between slice assignment that slices the whole list and direct assignment?
- Can I create a “view” on a Python list?
- How do you use the ellipsis slicing syntax in Python?
- How to get last items of a list in Python?
- How to extract an arbitrary line of values from a numpy array?
- Find nearest indices for one array against all values in another array – Python / NumPy
- Convert NumPy array to Python list
- Extract elements of list at odd positions
- Why does indexing numpy arrays with brackets and commas differ in behavior?
- Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
- What is the inverse function of zip in python? [duplicate]
- How to use python numpy.savetxt to write strings and float number to an ASCII file?
- Selecting Random Windows from Multidimensional Numpy Array Rows
- Reversing a list using slice notation
- How to convert list of numpy arrays into single numpy array?
- Why python’s list slicing doesn’t produce index out of bound error? [duplicate]
- List to array conversion to use ravel() function
- Compact way to assign values by slicing list in Python
- Numpy individual element access slower than for lists
- Slicing list of lists in Python
- Slicing a list into n nearly-equal-length partitions [duplicate]
- Index all *except* one item in python
- Why does reversing a list using slice notation with 0 as “stop” not return the entire list?
- How to access a column in a list of lists in python
- How can I slice each element of a numpy array of strings?
- How can I turn a flat list into a 2D array in python?