December 2017
Intermediate to advanced
386 pages
10h 42m
English
Content preview from SciPy Recipes
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How it works...
The iloc indexing method from the DataFrame object works in the same way as numerical indexing works in two-dimensional NumPy arrays. The code illustrates several possibilities, explained in detail as follows:
- df.iloc[2] selects the row with index 2. As usual, indexing starts at 0, so the third row in the DataFrame is returned. It returns a Series objects that has the column names as indexes.
- df.iloc[:,1] selects the column with index 1, which in our example is labeled inventory. It returns a Series object with indexes identical to the row indexes in the original DataFrame.
- df.iloc[3,1] returns a single item from the DataFrame, the item at row three and column one.
- df.iloc[0:2, 1:] selects a subset from the DataFrame using ...
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