Values can be looked up using an index using the [] operator or by using the following property indexers of a Series or DataFrame:
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.loc[] |
Looks up by the label, not the location. But be careful; if the labels are integers, then integers will be treated as labels! |
|
.at[] |
Like .loc[], but this can only retrieve a single value. |
|
.iloc[] |
Lookup is based on the 0-based position and not the index label. |
|
.ix[] |
Hybrid, which when given an integer will attempt 0-based lookup; other types are label-based. This is going to be deprecated, so stick with the other three properties. |
Values can be looked up in a Series by using the [] operator as in the following DataFrame, which has its b value retrieved.
Lookup using [] on a Series is equivalent to using the .loc[] property.
The [] operator retrieves columns instead of the rows when applied to DataFrame.
To look up via the row index with a DataFrame, one of the property indexers must be utilized.
The property indexer forms are also able to use slicing.
And it is also possible to pass a list of values.
