uproot.interpretation.library.Pandas
Defined in uproot.interpretation.library on line 813.
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- class uproot.interpretation.library.Pandas
A uproot.interpretation.library.Library that presents
TBranchdata as Pandas Series and DataFrames. The standard name for this library is"pd".The single-
TBranch(with a singleTLeaf) form for this library ispandas.Series, and the “group” form ispandas.DataFrame.The “group” behavior for this library is:
how=Noneor a string: passed topandas.mergeas itshowparameter, which would be relevant if jagged arrays with different multiplicity are requested.how=dict: a dict of str → array, mapping the names topandas.Series.how=tuple: a tuple ofpandas.Series, in the order requested. (Names are assigned to thepandas.Series.)how=list: a list ofpandas.Series, in the order requested. (Names are assigned to thepandas.Series.)
Pandas Series and DataFrames are indexed, so
global_indexadjusts them.
imported
Inherited from uproot.interpretation.library.Library.
- Pandas.imported
empty
Inherited from uproot.interpretation.library.Library.
- Pandas.empty(shape, dtype)
- Parameters:
shape (tuple of int) – NumPy array
shape. (The first item must be zero.)dtype (
numpy.dtypeor its constructor argument) – NumPy arraydtype.
Returns an empty NumPy-like array.
zeros
Inherited from uproot.interpretation.library.Library.
- Pandas.zeros(shape, dtype)
- Parameters:
shape (tuple of int) – NumPy array
shape. (The first item must be zero.)dtype (
numpy.dtypeor its constructor argument) – NumPy arraydtype.
Returns a NumPy-like array of zeros.
finalize
Inherited from uproot.interpretation.library.Library.
- Pandas.finalize(array, branch, interpretation, entry_start, entry_stop)
- Parameters:
array (array) – Internal, temporary, trimmed array. If this is a NumPy array, it may be identical to the output array.
branch (uproot.TBranch) – The
TBranchthat is represented by this array.interpretation (uproot.interpretation.Interpretation) – The interpretation that produced the
array.entry_start (int) – First entry that is included in the output.
entry_stop (int) – FIrst entry that is excluded (one greater than the last entry that is included) in the output.
Create a library-appropriate output array for this temporary
array.This array would represent one
TBranch(i.e. not a “group”).
group
Inherited from uproot.interpretation.library.Library.
- Pandas.group(arrays, expression_context, how)
- Parameters:
arrays (dict of str → array) – Mapping from names to finalized array objets to combine into a group.
expression_context (list of (str, dict) tuples) – Expression strings and a dict of metadata about each.
how (None, str, or container type) – Library-dependent instructions for grouping. The only recognized container types are
tuple,list, anddict. Note that the container type itself must be passed ashow, not an instance of that type (i.e.how=tuple, nothow=()).
Combine the finalized
arraysinto a library-appropriate group type.
global_index
Inherited from uproot.interpretation.library.Library.
- Pandas.global_index(arrays, global_offset)
- Parameters:
array (array) – The library-appropriate array whose global index needs adjustment.
global_offset (int) – A number to add to the global index of
arrayto correct it.
Apply in-place corrections to the global index of
arrayby addingglobal_offset.Even though the operation is performed in-place, this method returns the
array.
concatenate
Inherited from uproot.interpretation.library.Library.
- Pandas.concatenate(all_arrays)
- Parameters:
all_arrays (list of arrays) – A list of library-appropriate arrays that need to be concatenated.
Returns a concatenated version of
all_arrays.