02-25-2023
gcjfernandez
SAS Employee
Member since
09-18-2013
- 151 Posts
- 0 Likes Given
- 40 Solutions
- 45 Likes Received
About
George Fernandez, former professor of applied statistics, and the Director for the University of Nevada- Reno Center for Research Design and Analysis currently serves as Senior Analytical Consultant, SAS Education. He has more than 23 years of experience in teaching courses such as design and analysis of experiments, linear and non-linear regression, multivariate statistical methods and SAS programming. He has over 25 years experience in many statistical and graphical SAS modules. He has won best paper and poster presentation awards at the regional and international conferences. He has presented several invited full-day workshops on "Applications of user-friendly statistical methods in Data mining: American Statistical Association Joint meeting in Atlanta (2001), Western SAS users Conference in Arizona (2000), in San Diego (2002),and San Jose (2005), 56th Deming's conference, Atlantic City (2003), Key-note Speaker and workshop presenter, 16th Conference on Applied Statistics, Kansas State University. He has also organized 7th Western Users of SAS conference (WUSS) at Los Angeles in 1999 and served as the section chair, SUGI31 and SGF2007-2009. His book on "Data mining using SAS applications" (CRC press / Chapman Hall) contains many user-friendly SAS macro-applications.
Specialties: Training Consultant in SAS Forecast Server/Studio, SAS Enterprise Miner, SAS survey probability design course, SAS/STATS and SAS/ETS, programming, Data Mining, SAS Visual text analytics,and Visual forecasting.
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Latest posts by gcjfernandez
Subject Views Posted 1138 08-04-2022 12:11 PM 493 07-22-2022 03:30 PM 468 07-22-2022 03:17 PM 5487 04-25-2022 01:47 PM 988 03-03-2022 01:56 AM 1023 03-02-2022 03:04 PM 493 03-02-2022 01:59 AM 1277 10-18-2021 06:29 AM 1295 10-18-2021 02:44 AM 1312 10-18-2021 01:35 AM -
Activity Feed for gcjfernandez
- Got a Like for Re: Intuitive Way to Interpret Intercept Value of Shapley Values Output. 09-03-2023 06:36 PM
- Posted Getting Started with SAS® Visual Text Analytics Q&A, Slides, and On-Demand Recording on Ask the Expert. 08-04-2022 12:11 PM
- Got a Like for Webinar on July 28th, 11 AM – Noon ET entitled Getting Started with SAS® Visual Text Analytics. 07-22-2022 03:32 PM
- Posted Webinar on July 28th, 11 AM – Noon ET entitled Getting Started with SAS® Visual Text Analytics on SAS Visual Analytics. 07-22-2022 03:30 PM
- Posted Webinar on July 28th, 11 AM – Noon ET entitled Getting Started with SAS® Visual Text Analytics on SAS Data Science. 07-22-2022 03:17 PM
- Posted Re: Intuitive Way to Interpret Intercept Value of Shapley Values Output on SAS Data Science. 04-25-2022 01:47 PM
- Posted Re: New mean of variable after adjusting for covariate for total population on Statistical Procedures. 03-03-2022 01:56 AM
- Posted Re: New mean of variable after adjusting for covariate for total population on Statistical Procedures. 03-02-2022 03:04 PM
- Posted Re: Survey Select cascading stratified random sampling on Statistical Procedures. 03-02-2022 01:59 AM
- Got a Like for Re: NLP LITI Rules. 01-31-2022 05:20 PM
- Posted Re: SAS EM: decision tree on SAS Data Science. 10-18-2021 06:29 AM
- Posted Re: SAS EM: decision tree on SAS Data Science. 10-18-2021 02:44 AM
- Posted Re: SAS EM: decision tree on SAS Data Science. 10-18-2021 01:35 AM
- Posted Re: Modify a variable in SAS Miner on Statistical Procedures. 10-18-2021 01:17 AM
- Posted Improved ways to classify over-weight and obesity: Welcome Body Fat Index (BFI) on SAS Communities Library. 10-17-2021 02:04 AM
- Posted Re: Decision tree splitting rule in SAS EM on SAS Data Science. 10-14-2021 02:18 AM
- Posted Re: Decision tree splitting rule in SAS EM on SAS Data Science. 10-13-2021 06:36 PM
- Posted Re: In SAS EM, how can I know which one is the base level for nominal variable? on SAS Data Science. 10-07-2021 01:47 AM
- Posted Re: In SAS EM, how can I know which one is the base level for nominal variable? on SAS Data Science. 10-06-2021 05:15 PM
- Posted Re: In SAS EM, how can I know which one is the base level for nominal variable? on SAS Data Science. 10-06-2021 12:16 AM
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My Liked Posts
Subject Likes Posted 1 04-25-2022 01:47 PM 1 07-22-2022 03:17 PM 1 03-06-2021 01:51 PM 1 08-21-2021 02:56 AM 1 08-14-2021 02:53 AM -
My Library Contributions
Subject Likes Author Latest Post 0 0 1 0 0
05-21-2021
04:40 PM
Because your response rate very rare (< 0.05%), try a balanced sample (50% response 50% non-response) and check whether you still have problem with NN node scoring. You can always use the decision node to correct it for prior probability.
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05-18-2021
09:00 AM
Hi Rob, That solved the issue. For the MI ANALYZE step, it seems that you cannot use a class statement after using proc surveyreg and instead have to list all categorical variables in the modeleffects statement (except the reference categories). Thanks!
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05-10-2021
08:01 AM
Thanks for the comment, so basically I cannot use sas at all for lasso? I found %SURVEYCORRCOV macro that used ridge regression/ macro. I was hoping this community might've tried lasso/complex survey data before either with a macro or know how to address the issue manually
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04-26-2021
02:16 AM
Thank you so much for your guidance!
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04-23-2021
08:53 AM
SAS Survey procs currently do not support any automatic variable selections including LASSO methods.
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04-21-2021
02:29 AM
Trend analysis involving NHANES survey data is a very complex subject because of the nature of the probability survey designs used every two years.
Please refer these online resources first and come out with an analysis plan:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5961819/
https://19january2017snapshot.epa.gov/sites/production/files/2015-06/documents/statcomparisonsnhis-nhanes-032110.pdf
Thanks
George
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04-20-2021
02:30 AM
Thank you!
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04-19-2021
02:07 PM
Thank you, gcjfernandez! That is the solution.
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04-16-2021
08:56 AM
Thanks @jiltao for pointing out the error with my code, and even better, posting a solution that did use PROC GLM. I wish I could mark your reply as correct.
SteveDenham
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04-15-2021
01:59 AM
1 Like
For missing value imputation in probability survey designs please consider Proc Surveyimpute and SAS surveyprocs.
Please refer the following resources:
https://www.lexjansen.com/phuse-us/2018/dh/DH04.pdf
https://support.sas.com/documentation/onlinedoc/stat/141/surveyimpute.pdf
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04-09-2021
01:32 AM
1 Like
Please review this paper regarding intercept terms in random effects model:
https://support.sas.com/resources/papers/proceedings13/433-2013.pdf
Thanks
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03-28-2021
02:39 AM
4 Likes
You need to use PROC AUTOREG or PROC ARIMA in SAS ETS to perform time series regression. Please check the online documentation for these two procs.
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03-21-2021
07:31 PM
In EM output tables, you could save any graphics as PNG file by clicking output window first then click file saveas. Similarly you could save any table as SAS data by clicking table first File and click SaveAS. Hope this helps.
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03-21-2021
07:19 PM
You could try the STATEXPLORE node before / after using sample or the partition node and can compare descriptive stats.
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03-20-2021
01:58 AM
Do you want to perform filtering by a nominal variable? For example you have a nominal variable gender (2 levels) and you want to filter all male and perform analysis on male records?
Please provide more details.
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