pyjams is a general Python package offering a wide variety of miscellaneous functions in different categories, such as reading different file formats, date conversion routines, or meteorology. It has several subpackages offering constants, special functions, or objective functions to be used with scipy.optimize.

The package modernises and makes available routines of the JAMS Python library_, which was created 2009 by Matthias Cuntz while at the Department of Computational Hydrosystems, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany, and continued while at Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Nancy, France.

The complete documentation of pyjams is available at:

https://mcuntz.github.io/pyjams/

Installation

The easiest way to install is via pip:

.. code-block:: bash

pip install pyjams

or via conda:

.. code-block:: bash

conda install -c conda-forge pyjams

Requirements

numpy_
scipy_
matplotlib_
cftime_
netCDF4_
openpyxl_
schwimmbad_

Content

Modules and functions are currently provided in the following categories:

Array Manipulation_
Ascii Files_
Data Processing_
Date and Time_
Grids and Polygons_
Isotopes_
Math_
Meteorology_
Miscellaneous_
Plotting_
Special Files_

Functions and modules (alphabetical)


.. list-table::
   :widths: 10 30
   :header-rows: 1

   * - Function/module
     - Short description
   * - abc2plot
     - Deprecated, moved to package mcplot_. Write a, B, iii), ... on
       a plot
   * - alpha_equ_h2o
     - Equilibrium fractionation between liquid water and vapour
   * - alpha_kin_h2o
     - Kinetic fractionation of molecular diffusion of water vapour
   * - argmax
     - Wrapper for numpy.argmax, numpy.ma.argmax, and max for Python
       iterables
   * - argmin
     - Wrapper for numpy.argmin, numpy.ma.argmin, and min for Python
       iterables
   * - argsort
     - Wrapper for numpy.argsort, numpy.ma.argsort, and sorted for
       Python iterables
   * - closest
     - Index in array which entry is closest to a given number
   * - color
     - Deprecated, moved to package mcplot_. Collection of color
       palettes and continuous color maps
   * - const
     - Physical, mathematical, computational, isotope, and material
       constants
   * - date2date
     - Convert date representations between different regional
       variants
   * - date2dec
     - Return numeric time values given datetime objects or strings,
       same as `date2num`
   * - date2en
     - Convert date strings to English date format YYYY-MM-DD hh:mm:ss
   * - date2fr
     - Convert date strings to French date format DD/MM/YYYY hh:mm:ss
   * - date2num
     - Return numeric time values given datetime objects or strings
   * - date2us
     - Convert date strings to American date format MM/DD/YYYY hh:mm:ss
   * - datetime
     - Class as cftime.datetime for non-CF-conform calendars
   * - dec2date
     - Return datetime objects given numeric time values, same as
       `num2date`
   * - directories_from_gui
     - Open dialog to select one directory
   * - directory_from_gui
     - Open dialog to select several directories
   * - division
     - Divide two arrays, return 'otherwise' if division by 0
   * - div
     - Divide two arrays, return 'otherwise' if division by 0, same as
       `division`
   * - eair2mrair
     - Mixing ratio from partial pressure of water vapour and total
       pressure
   * - eair2rhair
     - Relative humidity from partial pressure of water vapour and
       temperature
   * - eair2shair
     - Specific humidity from partial pressure of water vapour and
       total pressure
   * - eair2vpd
     - Air vapour pressure deficit from partial pressure and
       temperature
   * - ee
     - Deprecated, moved to package pyeee_. Parameter screening using
       Morris' method of Elementary Effects, same as `screening`
   * - elementary_effects
     - Deprecated, moved to package pyeee_. Morris measures mu, stddev
       and mu*
   * - en2date
     - Convert date strings to standard date format DD.MM.YYYY hh:mm:ss
   * - en2fr
     - Convert date strings to French date format DD/MM/YYYY hh:mm:ss
   * - en2us
     - Convert date strings to American date format MM/DD/YYYY hh:mm:ss
   * - esat
     - Saturation vapour pressure over water and ice
   * - file_from_gui
     - Open dialog to select one file
   * - files_from_gui
     - Open dialog to select one or several files
   * - fr2date
     - Convert French date strings to standard date format DD.MM.YYYY hh:mm:ss
   * - fr2en
     - Convert French date strings to English date format YYYY-MM-DD hh:mm:ss
   * - fr2us
     - Convert French date strings to American date format MM/DD/YYYY hh:mm:ss
   * - fread
     - Read numbers from a file into 2D float array
   * - fsread
     - Read numbers and strings from a file into 2D float and string
       arrays
   * - functions
     - Special functions for testing optimisations, sensitivity
       analysis, several forms of the logistic function and its
       derivatives, and other functions to be used with scipy.optimize
   * - gridcellarea
     - Area of grid cells on Earth
   * - infonetcdf
     - Deprecated, moved to package ncio_. Extract information from
       netCDF file, same as `ncinfo`
   * - int2roman
     - Integer to Roman numeral conversion
   * - kernel_regression
     - Multi-dimensional non-parametric kernel regression
   * - kernel_regression_h
     - Determination of bandwidth for kernel regression
   * - lhs
     - Latin Hypercube Sampling
   * - mad
     - Median absolute deviation test
   * - mcPlot
     - Deprecated, moved to package mcplot_. Matthias Cuntz' standard
       plotting class
   * - means
     - Calculate daily, monthly, yearly, etc. means of data
   * - morris_sampling
     - Deprecated, moved to package pyeee_. Sampling of optimised
       trajectories for Morris measures / Elementary Effects
   * - mrair2eair
     - Partial pressure of water vapour from mixing ratio and total
       pressure
   * - ncinfo
     - Deprecated, moved to package ncio_. Extract information from
       netCDF file
   * - ncio
     - Deprecated, moved to package ncio_. netCDF4 functions to
       copy a netcdf file while doing some transformations on
       variables and dimensions
   * - ncread
     - Deprecated, moved to package ncio_. Read variables from
       netCDF file
   * - num2date
     - Return datetime objects given numeric time values
   * - pack
     - Pack array with mask like Fortran intrinsic pack
   * - position
     - Deprecated, moved to package mcplot_. Position arrays of
       subplots to be used with add_axes
   * - readnetcdf
     - Deprecated, moved to package ncio_. Read variables from
       netCDF file, same as `ncread`
   * - rhair2eair
     - Partial pressure of water vapour from relative humidity and
       temperature
   * - rhair2vpd
     - Air vapour pressure deficit from relative humidity and
       temperature
   * - roman2int
     - Roman numeral to integer conversion
   * - sce
     - Shuffled-Complex-Evolution algorithm for function
       min(max)imisation
   * - screening
     - Deprecated, moved to package pyeee_. Parameter screening using
       Morris' method of Elementary Effects
   * - shair2eair
     - Partial pressure of water vapour from specific humidity and
       total pressure
   * - Deprecated, moved to package mcplot_. signature2plot
     - Write a copyright notice on a plot
   * - sread
     - Read strings from a file into 2D string array
   * - str2tex
     - Deprecated, moved to package mcplot_. Convert strings to LaTeX
       strings in math environment used by matplotlib's usetex
   * - tee
     - Prints arguments on screen and in file, like Unix/Linux tee
       utility
   * - text2plot
     - Deprecated, moved to package mcplot_. Write text on a plot
   * - unpack
     - Unpack array using mask like Fortran intrinsic unpack
   * - updatez
     - Update arrays in uncompressed numpy .npz format
   * - updatez_compressed
     - Update arrays in compressed numpy .npz format
   * - us2date
     - Convert date strings to standard date format DD.MM.YYYY hh:mm:ss
   * - us2en
     - Convert date strings to English date format YYYY-MM-DD hh:mm:ss
   * - us2fr
     - Convert date strings to French date format DD/MM/YYYY hh:mm:ss
   * - vpd2eair
     - Partial pressure of water vapour from air vapour pressure
       deficit and temperature
   * - vpd2rhair
     - Relative humidity from air vapour pressure deficit and
       temperature
   * - xlsread
     - Read numbers and strings from Excel file into 2D float and
       string arrays, same as `xread`
   * - xlsxread
     - Read numbers and strings from Excel file into 2D float and
       string arrays, same as `xread`
   * - xread
     - Read numbers and strings from Excel file into 2D float and
       string arrays

Functions and modules per category
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. _Array Manipulation:

**Array Manipulation**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - argmax
         - Wrapper for numpy.argmax, numpy.ma.argmax, and max for
           Python iterables.
       * - argmin
         - Wrapper for numpy.argmin, numpy.ma.argmin, and min for
           Python iterables.
       * - argsort
         - Wrapper for numpy.argsort, numpy.ma.argsort, and sorted for
           Python iterables.
       * - closest
         - Index in array which entry is closest to a given number.
       * - pack
         - Pack array with mask like Fortran intrinsic pack
       * - unpack
         - Unpack array using mask like Fortran intrinsic unpack

.. _Ascii Files:

**Ascii Files**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - fread
         - Read numbers from a file into 2D float array
       * - fsread
         - Read numbers and strings from a file into 2D float and
           string arrays
       * - sread
         - Read strings from a file into 2D string array

.. _Data Processing:

**Data Processing**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - kernel_regression
         - Multi-dimensional non-parametric kernel regression
       * - kernel_regression_h
         - Determination of bandwidth for kernel regression
       * - mad
         - Median absolute deviation test
       * - means
         - Calculate daily, monthly, yearly, etc. means of data

.. _Date and Time:

**Date and Time**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - date2date
         - Convert date representations between different regional
           variants
       * - date2dec
         - Return numeric time values given datetime objects or
           strings, same as `date2num`
       * - date2en
         - Convert date strings to English date format YYYY-MM-DD hh:mm:ss
       * - date2fr
         - Convert date strings to French date format DD/MM/YYYY hh:mm:ss
       * - date2num
         - Return numeric time values given datetime objects or
           strings
       * - date2us
         - Convert date strings to American date format MM/DD/YYYY hh:mm:ss
       * - datetime
         - Class as cftime.datetime for non-CF-conform calendars
       * - dec2date
         - Return datetime objects given numeric time values,
           same as `num2date`
       * - en2date
         - Convert date strings to standard date format DD.MM.YYYY hh:mm:ss
       * - en2fr
         - Convert date strings to French date format DD/MM/YYYY hh:mm:ss
       * - en2us
         - Convert date strings to American date format MM/DD/YYYY hh:mm:ss
       * - fr2date
         - Convert French date strings to standard date format DD.MM.YYYY hh:mm:ss
       * - fr2en
         - Convert French date strings to English date format YYYY-MM-DD hh:mm:ss
       * - fr2us
         - Convert French date strings to American date format MM/DD/YYYY hh:mm:ss
       * - num2date
         - Return datetime objects given numeric time values
       * - us2date
         - Convert date strings to standard date format DD.MM.YYYY hh:mm:ss
       * - us2en
         - Convert date strings to English date format YYYY-MM-DD hh:mm:ss
       * - us2fr
         - Convert date strings to French date format DD/MM/YYYY hh:mm:ss

.. _Grids and Polygons:

**Grids and Polygons**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - gridcellarea
         - Area of grid cells on Earth

.. _Isotopes:

**Isotopes**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - alpha_equ_h2o
         - Equilibrium fractionation between liquid water and vapour
       * - alpha_kin_h2o
         - Kinetic fractionation of molecular diffusion of water
           vapour

.. _Math:

**Math**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - division
         - Divide two arrays, return 'otherwise' if division by 0
       * - div
         - Divide two arrays, return 'otherwise' if division by 0,
           same as `division`
       * - ee
         - Deprecated, moved to package pyeee_. Parameter screening
           using Morris' method of Elementary Effects, same as
           `screening`
       * - elementary_effects
         - Deprecated, moved to package pyeee_. Morris measures mu,
           stddev and mu*
       * - functions
         - Special functions for testing optimisations, sensitivity
           analysis, several forms of the logistic function and its
           derivatives, and other functions to be used with
           scipy.optimize
       * - lhs
         - Latin Hypercube Sampling
       * - morris_sampling
         - Deprecated, moved to package pyeee_. Sampling of optimised
           trajectories for Morris measures / Elementary Effects
       * - sce
         - Shuffled-Complex-Evolution algorithm for function
           min(max)imisation
       * - screening
         - Deprecated, moved to package pyeee_. Parameter screening
           using Morris' method of Elementary Effects

.. _Meteorology:

**Meteorology**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - eair2mrair
         - Mixing ratio from partial pressure of water vapour and
           total pressure
       * - eair2rhair
         - Relative humidity from partial pressure of water vapour and
           temperature
       * - eair2shair
         - Specific humidity from partial pressure of water vapour and
           total pressure
       * - eair2vpd
         - Air vapour pressure deficit from partial pressure and
           temperature
       * - esat
         - Saturation vapour pressure over water and ice
       * - mrair2eair
         - Partial pressure of water vapour from mixing ratio and
           total pressure
       * - rhair2eair
         - Partial pressure of water vapour from relative humidity and
           temperature
       * - rhair2vpd
         - Air vapour pressure deficit from relative humidity and
           temperature
       * - shair2eair
         - Partial pressure of water vapour from specific humidity and
           total pressure
       * - vpd2eair
         - Partial pressure of water vapour from air vapour pressure
           deficit and temperature
       * - vpd2rhair
         - Relative humidity from air vapour pressure deficit and
           temperature

.. _Miscellaneous:

**Miscellaneous**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - const
         - Physical, mathematical, computational, isotope, and
           material constants
       * - directories_from_gui
         - Open dialog to select one directory
       * - directory_from_gui
         - Open dialog to select several directories
       * - file_from_gui
         - Open dialog to select one file
       * - files_from_gui
         - Open dialog to select one or several files
       * - int2roman
         - Integer to Roman numeral conversion
       * - roman2int
         - Roman numeral to integer conversion
       * - tee
         - Prints arguments on screen and in file, like Unix/Linux tee
           utility

.. _Plotting:

**Plotting**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - abc2plot
         - Deprecated, moved to package mcplot_. Write a, B, iii),
           ... on a plot
       * - color
         - Deprecated, moved to package mcplot_. Collection of color
           palettes and continuous color maps
       * - int2roman
         - Integer to Roman numeral conversion
       * - mcPlot
         - Deprecated, moved to package mcplot_. Matthias Cuntz'
           standard plotting class
       * - position
         - Deprecated, moved to package mcplot_. Position arrays of
           subplots to be used with add_axes
       * - roman2int
         - Roman numeral to integer conversion
       * - signature2plot
         - Deprecated, moved to package mcplot_. Write a copyright
           notice on a plot
       * - str2tex
         - Deprecated, moved to package mcplot_. Convert strings to
           LaTeX strings in math environment used by matplotlib's
           usetex
       * - text2plot
         - Deprecated, moved to package mcplot_. Write text on a plot

.. _Special Files:

**Special Files**
    .. list-table::
       :widths: 10 25
       :header-rows: 1

       * - Function/module
         - Short description
       * - infonetcdf
         - Deprecated, moved to package ncio_. Extract information
           from netCDF file, same as `ncinfo`
       * - ncinfo
         - Deprecated, moved to package ncio_. Extract information
           from netCDF file
       * - ncio
         - Deprecated, moved to package ncio_. netCDF4 functions to
           copy a netcdf file while doing some transformations on
           variables and dimensions
       * - ncread
         - Deprecated, moved to package ncio_. Read variables from
           netCDF file
       * - readnetcdf
         - Deprecated, moved to package ncio_. Read variables from
           netCDF file, same as `ncread`
       * - updatez
         - Update arrays in uncompressed numpy .npz format
       * - updatez_compressed
         - Update arrays in compressed numpy .npz format
       * - xlsread
         - Read numbers and strings from Excel file into 2D float and
           string arrays, same as `xread`
       * - xlsxread
         - Read numbers and strings from Excel file into 2D float and
           string arrays, same as `xread`
       * - xread
         - Read numbers and strings from Excel file into 2D float and
           string arrays


License
-------

``pyjams`` is distributed under the MIT License. See the LICENSE_ file
for details.

Copyright (c) 2012- Matthias Cuntz, Juliane Mai, Stephan Thober,
and Arndt Piayda

The project structure of ``pyjams`` has borrowed heavily from
welltestpy_ by `Sebastian Müller`_.

.. _JAMS Python library: https://github.com/mcuntz/jams_python
.. _LICENSE: https://github.com/mcuntz/pyjams/blob/main/LICENSE
.. _Sebastian Müller: https://github.com/MuellerSeb
.. _cftime: https://github.com/Unidata/cftime
.. _matplotlib: https://matplotlib.org/
.. _mcplot: https://mcuntz.github.io/mcplot/
.. _ncio: https://mcuntz.github.io/ncio/
.. _netCDF4: https://github.com/Unidata/netcdf4-python
.. _numpy: https://numpy.org/
.. _openpyxl: https://foss.heptapod.net/openpyxl/openpyxl
.. _pyeee: https://mcuntz.github.io/pyeee/
.. _schwimmbad: https://github.com/adrn/schwimmbad/
.. _scipy: https://scipy.org/
.. _welltestpy: https://github.com/GeoStat-Framework/welltestpy/

FAQs

What is pyjams?

Is pyjams well maintained?

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

pyjams

pyjams

About pyjams

Installation

Content

Related posts

Socket Joins the OpenJS Foundation

Socket Security Analysis Is Now One Click Away on npm