PROC-X.com
http://proc-x.com
An online (unofficial) SAS® journal - written by bloggers (previously known as sas-x.com)Mon, 08 Dec 2014 19:51:54 +0000en-UShourly1http://wordpress.org/?v=4.0.1Sas-xhttps://feedburner.google.comFDA’s Official List of Validation Rules for SDTM compliance
http://feedproxy.google.com/~r/Sas-x/~3/-q39w2mDAn0/
http://proc-x.com/2014/11/fdas-official-list-of-validation-rules-for-sdtm-compliance/#commentsThu, 20 Nov 2014 20:21:00 +0000http://proc-x.com/?guid=6a6e276d8be569420a2e486dfee4a4e1Yesterday, FDA published its first official list of validation rules for CDISC SDTM. These long awaited rules cover both conformance and quality requirements, as described in the FDA Study Data Technical Conformance Guide. Conformance validation rules ...<img src="//feeds.feedburner.com/~r/Sas-x/~4/-q39w2mDAn0" height="1" width="1" alt=""/>http://proc-x.com/2014/11/fdas-official-list-of-validation-rules-for-sdtm-compliance/feed/0http://proc-x.com/2014/11/fdas-official-list-of-validation-rules-for-sdtm-compliance/New Permissions in SAS 9.4 M2: ManageCredentialsMetadata & ManageMemberMetadata
http://feedproxy.google.com/~r/Sas-x/~3/nyAA3GT49iQ/
http://proc-x.com/2014/10/new-permissions-in-sas-9-4-m2-managecredentialsmetadata-managemembermetadata/#commentsThu, 16 Oct 2014 11:58:33 +0000http://platformadmin.com/blogs/paul/?p=4815SAS® 9.4 M2 was released recently and included some new permissions related to identity administration. These new permissions are ManageMemberMetadata (MMM), for groups and roles, and ManageCredentialsMetadata (MCM), for users and groups. I found them documented in the SAS 9.4 Intelligence Platform: Security Administration Guide, Second Edition. They are listed in the Use and Enforcement […]<img src="//feeds.feedburner.com/~r/Sas-x/~4/nyAA3GT49iQ" height="1" width="1" alt=""/>http://proc-x.com/2014/10/new-permissions-in-sas-9-4-m2-managecredentialsmetadata-managemembermetadata/feed/0http://proc-x.com/2014/10/new-permissions-in-sas-9-4-m2-managecredentialsmetadata-managemembermetadata/Shaping support.sas.com with your help
http://feedproxy.google.com/~r/Sas-x/~3/bPyPlo4_6iI/
http://proc-x.com/2014/08/shaping-support-sas-com-with-your-help/#commentsThu, 28 Aug 2014 14:53:29 +0000http://blogs.sas.com/content/supportnews/?p=534This post was kindly contributed by Key Happenings at support.sas - go there to comment and to read the full post. You may have seen the many pleas and reminders for you to take the survey and help improve support.sas.com. You may be wondering why you continue to see them. Well, the answer is simple: It is important to us to hear from as many of you as possible before we […] n n This post was kindly contributed by Key Happenings at support.sas - go there to comment and to read the full post.<img src="//feeds.feedburner.com/~r/Sas-x/~4/bPyPlo4_6iI" height="1" width="1" alt=""/>http://proc-x.com/2014/08/shaping-support-sas-com-with-your-help/feed/0http://proc-x.com/2014/08/shaping-support-sas-com-with-your-help/R Passes SPSS in Scholarly Use, Stata Growing Rapidly
http://feedproxy.google.com/~r/Sas-x/~3/7CoDBDY-D-c/
http://proc-x.com/2014/08/r-passes-spss-in-scholarly-use-stata-growing-rapidly/#commentsWed, 20 Aug 2014 04:01:35 +0000http://r4stats.com/?p=1318by Robert A. Muenchen Here is my latest update to The Popularity of Data Analysis Software. To save you the trouble of reading all 25 pages of that article, the new section is below. The two most interesting nuggets it contains are: … <a href="http://r4stats.com/2014/08/20/r-passes-spss-in-scholarly-use-stata-growing-rapidly/">Continue reading <span>→</span></a><img alt="" border="0" src="http://pixel.wp.com/b.gif?host=r4stats.com&blog=35357879&post=1318&subd=r4stats&ref=&feed=1" width="1" height="1"><img src="//feeds.feedburner.com/~r/Sas-x/~4/7CoDBDY-D-c" height="1" width="1" alt=""/>http://proc-x.com/2014/08/r-passes-spss-in-scholarly-use-stata-growing-rapidly/feed/0http://proc-x.com/2014/08/r-passes-spss-in-scholarly-use-stata-growing-rapidly/Example 2014.6: Comparing medians and the Wilcoxon rank-sum test
http://feedproxy.google.com/~r/Sas-x/~3/G3GOZNS93IE/
http://proc-x.com/2014/06/example-2014-6-comparing-medians-and-the-wilcoxon-rank-sum-test/#commentsThu, 12 Jun 2014 13:00:00 +0000http://proc-x.com/?guid=a758b375ecbacf315d997f49934cf037This post was kindly contributed by SAS and R - go there to comment and to read the full post. A colleague recently contacted us with the following question: “My outcome is skewed– how can I compare medians across multiple categories?” What they were asking for was a generalization of the Wilcoxon rank-sum test (also known as the Mann-Whitney-Wilcoxon test, among other monikers) to more than two groups. For the record, the answer is that the Kruskal-Wallis test is the generalization of the Wilcoxon, the one-way ANOVA to the Wilcoxon’s t-test. But this question is based on a false premise: that the the Wilcoxon rank-sum test is used to compare medians. The premise is based on a misunderstanding of the null hypothesis of the test. The actual null hypothesis is that there is a 50% probability that a random value from one population exceeds an random value from the other population. The practical value of this is hard to see, and thus in many places, including textbooks, the null hypothesis is presented as “the two populations have equal medians”. The actual null hypothesis can be expressed as the latter median hypothesis, but only under the additional assumption that the shapes […]<img src="//feeds.feedburner.com/~r/Sas-x/~4/G3GOZNS93IE" height="1" width="1" alt=""/>http://proc-x.com/2014/06/example-2014-6-comparing-medians-and-the-wilcoxon-rank-sum-test/feed/0http://proc-x.com/2014/06/example-2014-6-comparing-medians-and-the-wilcoxon-rank-sum-test/Remove tabs from SAS code files
http://feedproxy.google.com/~r/Sas-x/~3/2F5aCi1x4Bo/
http://proc-x.com/2014/06/remove-tabs-from-sas-code-files/#commentsTue, 10 Jun 2014 14:03:00 +0000http://proc-x.com/?guid=d1d988bbb1f548e39b9fe9a3e841e9e3This post was kindly contributed by DATA ANALYSIS - go there to comment and to read the full post. By default, SAS records the indent by pressing the tab key by tab, which causes many problem to use the code files under a different environment. There are actually two ways to eliminate the tab character in SAS and replace with empty spaces. Regular expression Press Ctrl + H → Replace window pops out → Choose Regular expression search → At the box of Find text input \t→ At the box of Replace input multiple\s, say four Editor option Click Tools → Options → Enhanced Editors… → Choose Insert spaces for tabs → Choose Replace tabs with spaces on file open This post was kindly contributed by DATA ANALYSIS - go there to comment and to read the full post.<img src="//feeds.feedburner.com/~r/Sas-x/~4/2F5aCi1x4Bo" height="1" width="1" alt=""/>http://proc-x.com/2014/06/remove-tabs-from-sas-code-files/feed/0http://proc-x.com/2014/06/remove-tabs-from-sas-code-files/Find your stuff with My SAS
http://feedproxy.google.com/~r/Sas-x/~3/a14sAOrpelk/
http://proc-x.com/2014/06/find-your-stuff-with-my-sas/#commentsTue, 03 Jun 2014 16:42:05 +0000http://blogs.sas.com/content/supportnews/?p=525I am forever putting something down and not remembering what I did with it.  I solved this problem for my keys by putting a cute little froggy key hook next to the door. My keys go there as soon as I get home. But at work, I don't have a […]<div>n<a href="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?a=FrJBq1TUyXA:Hw2HzVqvVvc:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?a=FrJBq1TUyXA:Hw2HzVqvVvc:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?d=qj6IDK7rITs" border="0"></a> <a href="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?a=FrJBq1TUyXA:Hw2HzVqvVvc:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?i=FrJBq1TUyXA:Hw2HzVqvVvc:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?a=FrJBq1TUyXA:Hw2HzVqvVvc:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?i=FrJBq1TUyXA:Hw2HzVqvVvc:F7zBnMyn0Lo" border="0"></a> <a href="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?a=FrJBq1TUyXA:Hw2HzVqvVvc:gIN9vFwOqvQ"><img src="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?i=FrJBq1TUyXA:Hw2HzVqvVvc:gIN9vFwOqvQ" border="0"></a> <a href="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?a=FrJBq1TUyXA:Hw2HzVqvVvc:TzevzKxY174"><img src="http://feeds.feedburner.com/~ff/UpdatesInSasOnlineSupport?d=TzevzKxY174" border="0"></a>n</div><img src="http://feeds.feedburner.com/~r/UpdatesInSasOnlineSupport/~4/FrJBq1TUyXA" height="1" width="1" alt=""><img src="//feeds.feedburner.com/~r/Sas-x/~4/a14sAOrpelk" height="1" width="1" alt=""/>http://proc-x.com/2014/06/find-your-stuff-with-my-sas/feed/0http://proc-x.com/2014/06/find-your-stuff-with-my-sas/Use recursion and gradient ascent to solve logistic regression in Python
http://feedproxy.google.com/~r/Sas-x/~3/tjcEptchq-w/
http://proc-x.com/2014/05/use-recursion-and-gradient-ascent-to-solve-logistic-regression-in-python/#commentsWed, 21 May 2014 21:22:00 +0000http://proc-x.com/?guid=214affb877fa4dd55c5773214f600949This post was kindly contributed by DATA ANALYSIS - go there to comment and to read the full post. In his book Machine Learning in Action, Peter Harrington provides a solution for parameter estimation of logistic regression . I use pandas and ggplot to realize a recursive alternative. Comparing with the iterative method, the recursion costs more space but may bring the improvement of performance. # -*- coding: utf-8 -*- """ Use recursion and gradient ascent to solve logistic regression in Python """ import pandas as pd from ggplot import * def sigmoid(inX): return 1.0/(1+exp(-inX)) def grad_ascent(dataMatrix, labelMat, cycle): """ A function to use gradient ascent to calculate the coefficients """ if isinstance(cycle, int) == False or cycle < 0: raise ValueError("Must be a valid value for the number of iterations") m, n = shape(dataMatrix) alpha = 0.001 if cycle == 0: return ones((n, 1)) else: weights = grad_ascent(dataMatrix, labelMat, cycle-1) h = sigmoid(dataMatrix * weights) errors = (labelMat - h) return weights + alpha * dataMatrix.transpose()* errors def plot(vector): """ A funtion to use ggplot to visualize the result """ x = arange(-3, 3, 0.1) y = (-vector[0]-vector[1]*x) / vector[2] new = pd.DataFrame() new['x'] = x new['y'] = array(y).flatten() infile.classlab = infile.classlab.astype(str) p = ggplot(aes(x='x', y='y', […]<img src="//feeds.feedburner.com/~r/Sas-x/~4/tjcEptchq-w" height="1" width="1" alt=""/>http://proc-x.com/2014/05/use-recursion-and-gradient-ascent-to-solve-logistic-regression-in-python/feed/0http://proc-x.com/2014/05/use-recursion-and-gradient-ascent-to-solve-logistic-regression-in-python/Public Types Explorer
http://feedproxy.google.com/~r/Sas-x/~3/hPqcQGsUxkg/
http://proc-x.com/2014/05/public-types-explorer/#commentsTue, 06 May 2014 12:42:12 +0000http://platformadmin.com/blogs/paul/?p=4789Did you know that the SAS metadata server also provides metadata about metadata? Metadata about well known SAS metadata object types (public types) is available in the Foundation metadata repository and includes information about the applicability of the various metadata permissions. To help SAS platform administrators get a better understanding of which permissions apply to […]<img src="//feeds.feedburner.com/~r/Sas-x/~4/hPqcQGsUxkg" height="1" width="1" alt=""/>http://proc-x.com/2014/05/public-types-explorer/feed/0http://proc-x.com/2014/05/public-types-explorer/Spring Thaw in Alberta
http://feedproxy.google.com/~r/Sas-x/~3/OGbI6hnC-AY/
http://proc-x.com/2014/05/spring-thaw-in-alberta/#commentsFri, 02 May 2014 01:16:00 +0000http://proc-x.com/?guid=385bb5ce78e69f2dd0ef5ac2011b0de5Last week I had the great pleasure of flying to Alberta for the Edmonton and Calgary user group meetings. Well, let me say that it mostly a great pleasure... my system was still in a bit of temperature shock having been sunning myself on a St. Lucian b...<img src="//feeds.feedburner.com/~r/Sas-x/~4/OGbI6hnC-AY" height="1" width="1" alt=""/>http://proc-x.com/2014/05/spring-thaw-in-alberta/feed/0http://proc-x.com/2014/05/spring-thaw-in-alberta/