xray
Overview: Why xray?
Features
Core data structures
Goals and aspirations
Examples
Quick overview
Create a DataArray
Indexing
Computation
GroupBy
Convert to pandas
Datasets and NetCDF
Toy weather data
Examine a dataset with pandas and seaborn
Probability of freeze by calendar month
Monthly averaging
Calculate monthly anomalies
Fill missing values with climatology
Calculating Seasonal Averages from Timeseries of Monthly Means
Some calendar information so we can support any netCDF calendar.
A few calendar functions to determine the number of days in each month
Open the
Dataset
Now for the heavy lifting:
Installation
Required dependencies
Optional dependencies
netCDF and IO
Accelerating xray
Parallel computing
Instructions
Data Structures
DataArray
Creating a DataArray
DataArray properties
DataArray Coordinates
Dataset
Creating a Dataset
Dataset contents
Dictionary like methods
Modifying datasets
Coordinates
Modifying coordinates
Coordinates methods
Indexes
Converting datasets and arrays
Indexing and selecting data
Positional indexing
Indexing with labeled dimensions
Dataset indexing
Dropping labels
Indexing details
Align and reindex
Nearest neighbor lookups
Computation
Basic array math
Missing values
Aggregation
Broadcasting by dimension name
Automatic alignment
Coordinates
Math with datasets
GroupBy: split-apply-combine
Split
Apply
First and last
Grouped arithmetic
Squeezing
Combining data
Concatenate
Merge
Update
Equals and identical
Time series data
Creating datetime64 data
Datetime indexing
Datetime components
Resampling and grouped operations
Working with pandas
Hierarchical and tidy data
Dataset and DataFrame
DataArray and Series
Multi-dimensional data
Serialization and IO
Pickle
netCDF
OPeNDAP
Combining multiple files
Out of core computation with dask
What is a dask array?
Reading and writing data
Using dask with xray
Chunking and performance
API reference
Top-level functions
xray.align
xray.concat
xray.set_options
Dataset
Creating a dataset
xray.Dataset
xray.decode_cf
Attributes
xray.Dataset.dims
xray.Dataset.data_vars
xray.Dataset.coords
xray.Dataset.attrs
Dictionary interface
xray.Dataset.__getitem__
xray.Dataset.__setitem__
xray.Dataset.__delitem__
xray.Dataset.update
xray.Dataset.iteritems
xray.Dataset.itervalues
Dataset contents
xray.Dataset.copy
xray.Dataset.assign
xray.Dataset.assign_coords
xray.Dataset.merge
xray.Dataset.rename
xray.Dataset.swap_dims
xray.Dataset.drop
xray.Dataset.set_coords
xray.Dataset.reset_coords
Comparisons
xray.Dataset.equals
xray.Dataset.identical
xray.Dataset.broadcast_equals
Indexing
xray.Dataset.loc
xray.Dataset.isel
xray.Dataset.sel
xray.Dataset.squeeze
xray.Dataset.reindex
xray.Dataset.reindex_like
Computation
xray.Dataset.apply
xray.Dataset.reduce
xray.Dataset.groupby
xray.Dataset.resample
xray.Dataset.transpose
DataArray
xray.DataArray
xray.DataArray.dims
xray.DataArray.values
xray.DataArray.coords
xray.DataArray.name
xray.DataArray.attrs
Attributes
xray.DataArray.values
xray.DataArray.data
xray.DataArray.coords
xray.DataArray.dims
xray.DataArray.name
xray.DataArray.attrs
xray.DataArray.encoding
DataArray contents
xray.DataArray.assign_coords
xray.DataArray.rename
xray.DataArray.swap_dims
xray.DataArray.drop
xray.DataArray.reset_coords
xray.DataArray.copy
Indexing
xray.DataArray.__getitem__
xray.DataArray.__setitem__
xray.DataArray.loc
xray.DataArray.isel
xray.DataArray.sel
xray.DataArray.squeeze
xray.DataArray.reindex
xray.DataArray.reindex_like
Computation
xray.DataArray.reduce
xray.DataArray.groupby
xray.DataArray.resample
xray.DataArray.transpose
xray.DataArray.get_axis_num
Comparisons
xray.DataArray.equals
xray.DataArray.identical
xray.DataArray.broadcast_equals
Universal functions
IO / Conversion
Dataset methods
xray.open_dataset
xray.open_mfdataset
xray.Dataset.to_netcdf
xray.Dataset.to_array
xray.Dataset.to_dataframe
xray.Dataset.from_dataframe
xray.Dataset.close
xray.Dataset.load
xray.Dataset.chunk
DataArray methods
xray.DataArray.to_dataset
xray.DataArray.to_pandas
xray.DataArray.to_series
xray.DataArray.to_dataframe
xray.DataArray.to_index
xray.DataArray.to_cdms2
xray.DataArray.from_series
xray.DataArray.from_cdms2
xray.DataArray.load
xray.DataArray.chunk
Backends (experimental)
xray.backends.NetCDF4DataStore
xray.backends.H5NetCDFStore
xray.backends.PydapDataStore
xray.backends.ScipyDataStore
Frequently Asked Questions
Why is pandas not enough?
How do xray data structures differ from those found in pandas?
Should I use xray instead of pandas?
What is your approach to metadata?
What other netCDF related Python libraries should I know about?
What’s New
v0.5 (1 June 2005)
Highlights
Backwards incompatible changes
Enhancements
Deprecations
v0.4.1 (18 March 2015)
Enhancements
Bug fixes
v0.4 (2 March, 2015)
Breaking changes
Enhancements
Bug fixes
Deprecations
Future plans
v0.3.2 (23 December, 2014)
Backwards incompatible changes
Enhancements
Bug fixes
Future plans
v0.3.1 (22 October, 2014)
New features
Bug fixes
v0.3 (21 September 2014)
New features
Backwards incompatible changes
Deprecations
v0.2 (14 August 2014)
v0.1.1 (20 May 2014)
v0.1 (2 May 2014)
xray
Docs
»
xray.Dataset.round
Edit on GitHub
xray.Dataset.round
¶
Dataset.
round
(
*args
,
**kwargs
)
¶
Read the Docs
v: v0.5
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