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Re: Trim

Posted: Fri May 22, 2015 6:32 pm
by System
Will it ever be included in any updates?

Re: Trim

Posted: Tue May 26, 2015 6:07 am
by System
Also, on an unrelated note, why does my Trim add-in keep disappearing from the add-in menu from time to time? Also, why do my winsorised values differ from the values of the percentiles I have calculated? For example, eviews gives me an upper winsorised value of 414 but the 0.995 percentile is 371 as calculated by excel.

Re: Trim

Posted: Tue May 26, 2015 8:41 am
by EViews Gareth
It shouldn't disappear - are you sure you have a series object open?

Hard to say about the numbers without seeing the data.

Re: Trim

Posted: Mon Jun 22, 2015 4:48 am
by pchavan
Hi, I have downloaded the trim add in but I am not sure how I should use it on a panel data (pool) that I have generated. Can you help please?

Re: Trim

Posted: Mon Jun 22, 2015 9:07 am
by EViews Gareth
I don't believe it will work on a pool object.

Re: Trim

Posted: Sat Apr 09, 2016 11:42 am
by gishena
If I want to winsorise and the 99th and 1th percentile at the add-in I have to put in the values 0,1 and 0,99 right?

http://s30.postimg.org/tvan3o2e9/image.jpg

Trim

Posted: Sat Apr 09, 2016 12:37 pm
by EViews Gareth
I think just 1 and 99

Re: Trim

Posted: Mon Apr 11, 2016 12:31 am
by gishena
Are you sure? When I use 0,1 and 0,99 I get results but when I use 1 and 99 I get only n/a values. My best guess is that it would be correct to use 0,01 and 0,99

Re: Trim

Posted: Mon Sep 26, 2016 11:12 am
by Santosh
Hi,
i installed the add-in Trim. Then i winsorized some variables both in EViews and Stata. Results differ. However, i think Stata result is correct because when i winsorized in Excel, i found Stata result is same as Excel result. So, can you help me?

Thank you
Santosh

Re: Trim

Posted: Mon Sep 26, 2016 11:35 am
by EViews Gareth
Can you provide details/example?

Re: Trim

Posted: Tue Sep 27, 2016 12:20 am
by Santosh
Hi,
I want to winsorize EGPI3. EViews data sheet shows the following code. I think it is only taking care of the upper outliers.

out = @recode(in<=0.00199999999999967,0.00199999999999967,in)
Modified: 1970 2012 // out = @recode(in>=16.748,16.748,out)

Do I need to post data here?
Since I am new user, i dont know if i can upload EView file.
I tried to attache images but i could not attach them.
Thank you.

Re: Trim

Posted: Tue Sep 27, 2016 9:15 am
by EViews Gareth
Looks like it is doing both sides.

Re: Trim

Posted: Wed Sep 28, 2016 7:06 am
by Santosh
Hi Gareth,
Maybe. But winsorized data shows that it only takes care of only upper outliers.
What i am doing is this: open a variable, Proc, Trimming & Winsorizing, then in the q% lowest (highest) observations i am writing 0.05 (0.95). Is it correct?
If yes, but the Stata results and Excel calculations do not match with EViews winsorization.
It would be great if you can help me.
Thank you.

Re: Trim

Posted: Wed Sep 28, 2016 8:05 am
by EViews Gareth
Every thing you are doing is correct, and when I do it I get winsored results on both ends. Again, can you provide an example/details?

Re: Trim

Posted: Wed Sep 28, 2016 9:15 am
by Santosh
Thank you Gareth. Kindly note that I am unable to attach EViews file.
Is it fine if i paste data here?