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kwil
‎11-02-2020
  • 13 Posts
  • 0 Likes Given
  • 0 Solutions
  • 1 Likes Received

Re: How to get one sample Wilcoxon Signed Rank Z Statistic?

by Fluorite | Level 6 in Statistical Procedures
‎11-02-2020 04:09 AM
‎11-02-2020 04:09 AM
Thanks very much, works great! ... View more

Re: How to estimate a variance-covariance matrix for use in t-statisti...

by SAS Super FREQ in Statistical Procedures
‎10-15-2020 05:44 AM
‎10-15-2020 05:44 AM
>  i have no experience with matrix programming and am not sure how to do it. How would i set this up to then do the matrix programming in IML?   The best way to gain experience is to start writing programs. I have provided an example. You need to read the observations for group 'a' into the X vector and read the observations with group 'b' into the Y vector:   use Have; read all var {Firm Month BHAR}; close; X = BHAR[ loc(Firm='a') ]; Y = BHAR[ loc(Firm='b') ]; print X Y; ... View more

Re: How to estimate a variance-covariance matrix for use in t-statisti...

by SAS Super FREQ in Statistical Procedures
‎10-15-2020 05:44 AM
‎10-15-2020 05:44 AM
>  i have no experience with matrix programming and am not sure how to do it. How would i set this up to then do the matrix programming in IML?   The best way to gain experience is to start writing programs. I have provided an example. You need to read the observations for group 'a' into the X vector and read the observations with group 'b' into the Y vector:   use Have; read all var {Firm Month BHAR}; close; X = BHAR[ loc(Firm='a') ]; Y = BHAR[ loc(Firm='b') ]; print X Y; ... View more

Re: How to implement a bootstrapped skewness-adjusted t-statistic?

by SAS Super FREQ in SAS Programming
‎10-06-2020 07:26 AM
‎10-06-2020 07:26 AM
Yes, you can use the BOOTSTRAP statement in PROC TTEST. Ask for the BC (bias-corrected) interval if you are concerned about skewness. The TTEST doc shows formulas for all bootstrap intervals. For an example of how to use the BOOTSTRAP statement, see "The BOOTSTRAP statement for t tests in SAS" (although the article uses two-sample tests). ... View more

Re: How to get a set of returns with replacement if data stops?

by Fluorite | Level 6 in SAS Programming
‎09-22-2020 08:55 PM
‎09-22-2020 08:55 PM
Thanks very much! ... View more

Re: How do i match a set of control firms for each sample event firm

by Fluorite | Level 6 in SAS Programming
‎09-20-2020 08:21 PM
‎09-20-2020 08:21 PM
Yes this works perfectly. Thanks very much. ... View more
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