8000 DOC: added string processing comparison with SAS by natethedrummer · Pull Request #16497 · pandas-dev/pandas · GitHub
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DOC: added string processing comparison with SAS #16497

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Merged
merged 5 commits into from
Aug 7, 2017
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DOC: added string processing comparison with SAS #16497

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a68fe9f
added string processing
natethedrummer May 25, 2017
4e1f8dd
made code segments as ipython blocks
natethedrummer May 25, 2017
0ec1854
limited output using .head()
natethedrummer May 25, 2017
04c9353
added directives for SAS string functions
natethedrummer May 25, 2017
f4c9cd8
small edit to show result
jorisvandenbossche Aug 7, 2017
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added directives for SAS string functions
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@natethedrummer
natethedrummer committed May 25, 2017
commit 04c9353523b708d57d4a90ffb26185c2f9d72681
25 changes: 14 additions & 11 deletions doc/source/comparison_with_sas.rst
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Expand Up @@ -364,9 +364,10 @@ String Processing
Length
~~~~~~

SAS determines the length of a character string with the ``LENGTHN``
and ``LENGTHC`` functions. ``LENGTHN`` excludes trailing blanks and
``LENGTHC`` includes trailing blanks.
SAS determines the length of a character string with the
`LENGTHN <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a002284668.htm>`__
and `LENGTHC <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a002283942.htm>`__
functions. ``LENGTHN`` excludes trailing blanks and ``LENGTHC`` includes trailing blanks.

.. code-block:: none

Expand All @@ -390,8 +391,8 @@ Find
~~~~

SAS determines the position of a character in a string with the
``FINDW`` function. ``FINDW`` takes the string defined by
the first argument and searches for the first position of the substring
`FINDW <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a002978282.htm>`__ function.
``FINDW`` takes the string defined by the first argument and searches for the first position of the substring
you supply as the second argument.

.. code-block:: none
Expand All @@ -415,8 +416,8 @@ the function will return -1 if it fails to find the substring.
Substring
~~~~~~~~~

SAS extracts a substring from a string based on its position
with the ``SUBSTR`` function.
SAS extracts a substring from a string based on its position with the
`SUBSTR <http://www2.sas.com/proceedings/sugi25/25/cc/25p088.pdf>`__ function.

.. code-block:: none

Expand All @@ -437,8 +438,8 @@ indexes are zero-based.
Scan
~~~~

The SAS ``SCAN`` function returns the nth word from a string.
The first argument is the string you want to parse and the
The SAS `SCAN <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000214639.htm>`__
function returns the nth word from a string. The first argument is the string you want to parse and the
second argument specifies which word you want to extract.

.. code-block:: none
Expand Down Expand Up @@ -467,8 +468,10 @@ approaches, but this just shows a simple approach.
Upcase, Lowcase, and Propcase
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The SAS ``UPCASE``, ``LOWCASE``, and ``PROPCASE`` functions change
the case of the argument.
The SAS `UPCASE <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245965.htm>`__
`LOWCASE <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245912.htm>`__ and
`PROPCASE <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/a002598106.htm>`__
functions change the case of the argument.

.. code-block:: none

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