natural log in sas

natural log in sas

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LOG Function :: SAS/IML(R) 13.1 User's Guide

    http://support.sas.com/documentation/cdl/en/imlug/66845/HTML/default/imlug_langref_sect233.htm
    The LOG function is the scalar function that takes the natural logarithm of each element of the argument matrix. An example of a valid statement follows:
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    http://support.sas.com/documentation/cdl/en/imlug/66845/HTML/default/imlug_langref_sect233.htm

Functions and CALL Routines: LOG Function - 9.2

    https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/a000245909.htm
    Returns the natural (base e) logarithm. Category: Mathematical Syntax: Arguments: Examples
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    https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/a000245909.htm

SAS Data Transformation: Using Log Transformation in SAS

    https://www.mydatacareer.com/sas-data-transformation/
    SAS Data Transformation: Using Log Transformation SAS sas data transformation, sas log function, sas natural log, log transformation in sas, log transformation sas Introduction. Using SAS for data transformation is not difficult. The SAS log function allows you to perform a log transformation in sas. As much as it may seem, performing a log ...
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    https://www.mydatacareer.com/sas-data-transformation/

Create new variable from an existing variable - SAS ...

    https://communities.sas.com/t5/SAS-Enterprise-Guide/Create-new-variable-from-an-existing-variable/td-p/14956
    I have a variable named A. I want to create a variable B wich is equal to LOG(A). How can I do this in SAS Enterprise Guide?
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    https://communities.sas.com/t5/SAS-Enterprise-Guide/Create-new-variable-from-an-existing-variable/td-p/14956

Transform to Natural log - SAS Support Communities

    https://communities.sas.com/t5/Statistical-Procedures/Transform-to-Natural-log/td-p/339865
    Using the least squares regression line to determine R-squared then have to transformt he explanatory variable x to ln(x) (using proc reg) How do you
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    https://communities.sas.com/t5/Statistical-Procedures/Transform-to-Natural-log/td-p/339865

SAS Data Steps - University of Wisconsin–Madison

    http://pages.stat.wisc.edu/~yandell/software/sas/data.html
    Random Numbers Random numbers are available for a wide variety of distributions. These can also be used to generate experimental designs. It is best to use the functions with names begining with ran-- the uniform function ranuni appears to be better behaved than the function uniform using standard tests.
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    http://pages.stat.wisc.edu/~yandell/software/sas/data.html

Log transformations: How to handle negative ... - SAS Blogs

    https://blogs.sas.com/content/iml/2011/04/27/log-transformations-how-to-handle-negative-data-values.html
    Problem lies where I want to take natural log of data of all variables. All data is in % form but have positive or negative values. e.g. ROA =0.328% and ROE = -7.92%. I can easily apply natural log to 0.328% value and get -1.11474 but how can I apply natural log to the negative value? if you could please shoe me how and give me a figure to see.
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    https://blogs.sas.com/content/iml/2011/04/27/log-transformations-how-to-handle-negative-data-values.html

Captain’s LOG: Taking Command of SAS® Logarithm Functions ...

    http://www.mwsug.org/proceedings/2014/RF/MWSUG-2014-RF06.pdf
    THE NATURAL LOG . In SAS, the function for the natural log is LOG. In Example 1, the trivial identities are tested in a DATA step. The input of 1, returns the expected value of 0 and using a Euler’s Number approximation of 2.71828, the result y is very close to 1.
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