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DOC: Add syntax highlighting to SAS code blocks in comparison_with_sas.rst #20080

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merged 2 commits into from Mar 9, 2018
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DOC: Add syntax highlighting to SAS code blocks in comparison_with_sas.rst #20080

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010d14f
Add syntax highlighting to SAS code blocks
kylebarron Mar 1, 2018
a9aa885
Fix typo
kylebarron Mar 9, 2018
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44 changes: 22 additions & 22 deletions doc/source/comparison_with_sas.rst
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Expand Up @@ -25,7 +25,7 @@ As is customary, we import pandas and NumPy as follows:
This is often used in interactive work (e.g. `Jupyter notebook
<https://jupyter.org/>`_ or terminal) - the equivalent in SAS would be:

.. code-block:: none
.. code-block:: sas

proc print data=df(obs=5);
run;
Expand Down Expand Up @@ -65,7 +65,7 @@ in the ``DATA`` step.

Every ``DataFrame`` and ``Series`` has an ``Index`` - which are labels on the
*rows* of the data. SAS does not have an exactly analogous concept. A data set's
row are essentially unlabeled, other than an implicit integer index that can be
rows are essentially unlabeled, other than an implicit integer index that can be
accessed during the ``DATA`` step (``_N_``).

In pandas, if no index is specified, an integer index is also used by default
Expand All @@ -87,7 +87,7 @@ A SAS data set can be built from specified values by
placing the data after a ``datalines`` statement and
specifying the column names.

.. code-block:: none
.. code-block:: sas

data df;
input x y;
Expand Down Expand Up @@ -121,7 +121,7 @@ will be used in many of the following examples.

SAS provides ``PROC IMPORT`` to read csv data into a data set.

.. code-block:: none
.. code-block:: sas

proc import datafile='tips.csv' dbms=csv out=tips replace;
getnames=yes;
Expand Down Expand Up @@ -156,7 +156,7 @@ Exporting Data

The inverse of ``PROC IMPORT`` in SAS is ``PROC EXPORT``

.. code-block:: none
.. code-block:: sas

proc export data=tips outfile='tips2.csv' dbms=csv;
run;
Expand All @@ -178,7 +178,7 @@ Operations on Columns
In the ``DATA`` step, arbitrary math expressions can
be used on new or existing columns.

.. code-block:: none
.. code-block:: sas

data tips;
set tips;
Expand Down Expand Up @@ -207,7 +207,7 @@ Filtering
Filtering in SAS is done with an ``if`` or ``where`` statement, on one
or more columns.

.. code-block:: none
.. code-block:: sas

data tips;
set tips;
Expand All @@ -233,7 +233,7 @@ If/Then Logic

In SAS, if/then logic can be used to create new columns.

.. code-block:: none
.. code-block:: sas

data tips;
set tips;
Expand Down Expand Up @@ -262,7 +262,7 @@ Date Functionality
SAS provides a variety of functions to do operations on
date/datetime columns.

.. code-block:: none
.. code-block:: sas

data tips;
set tips;
Expand Down Expand Up @@ -307,7 +307,7 @@ Selection of Columns
SAS provides keywords in the ``DATA`` step to select,
drop, and rename columns.

.. code-block:: none
.. code-block:: sas

data tips;
set tips;
Expand Down Expand Up @@ -343,7 +343,7 @@ Sorting by Values

Sorting in SAS is accomplished via ``PROC SORT``

.. code-block:: none
.. code-block:: sas

proc sort data=tips;
by sex total_bill;
Expand All @@ -369,7 +369,7 @@ SAS determines the length of a character string with the
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
.. code-block:: sas

data _null_;
set tips;
Expand All @@ -395,7 +395,7 @@ SAS determines the position of a character in a string with the
``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
.. code-block:: sas

data _null_;
set tips;
Expand All @@ -419,7 +419,7 @@ Substring
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
.. code-block:: sas

data _null_;
set tips;
Expand All @@ -442,7 +442,7 @@ The SAS `SCAN <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/def
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
.. code-block:: sas

data firstlast;
input String $60.;
Expand Down Expand Up @@ -474,7 +474,7 @@ The SAS `UPCASE <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/d
`PROPCASE <http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/a002598106.htm>`__
functions change the case of the argument.

.. code-block:: none
.. code-block:: sas

data firstlast;
input String $60.;
Expand Down Expand Up @@ -516,7 +516,7 @@ types of joins are accomplished using the ``in=`` dummy
variables to track whether a match was found in one or both
input frames.

.. code-block:: none
.. code-block:: sas

proc sort data=df1;
by key;
Expand Down Expand Up @@ -572,7 +572,7 @@ operations, and is ignored by default for aggregations.
One difference is that missing data cannot be compared to its sentinel value.
For example, in SAS you could do this to filter missing values.

.. code-block:: none
.. code-block:: sas

data outer_join_nulls;
set outer_join;
Expand Down Expand Up @@ -615,7 +615,7 @@ SAS's PROC SUMMARY can be used to group by one or
more key variables and compute aggregations on
numeric columns.

.. code-block:: none
.. code-block:: sas

proc summary data=tips nway;
class sex smoker;
Expand All @@ -640,7 +640,7 @@ In SAS, if the group aggregations need to be used with
the original frame, it must be merged back together. For
example, to subtract the mean for each observation by smoker group.

.. code-block:: none
.. code-block:: sas

proc summary data=tips missing nway;
class smoker;
Expand Down Expand Up @@ -679,7 +679,7 @@ replicate most other by group processing from SAS. For example,
this ``DATA`` step reads the data by sex/smoker group and filters to
the first entry for each.

.. code-block:: none
.. code-block:: sas

proc sort data=tips;
by sex smoker;
Expand Down Expand Up @@ -719,7 +719,7 @@ Data Interop
pandas provides a :func:`read_sas` method that can read SAS data saved in
the XPORT or SAS7BDAT binary format.

.. code-block:: none
.. code-block:: sas

libname xportout xport 'transport-file.xpt';
data xportout.tips;
Expand Down