EViews.com

Posted: **Wed Oct 20, 2010 6:01 am**

Hi.
I am writing a subroutine to calculate percentage change rate. This calculation is workfile specific
so I used @pagefreq to return current workfile frequency and compare it to an existing
string. However, the program keeps giving error message such as %w=w is not specified etc.
(I actually changed the code to "string %w=w" or String %w="w", but neither one works.
Anyone can tell me what I did wrong in the coding? Thanks in advance.

Code: Select all

subroutine pcna(series x, scalar n)  
%f=@pagefreq
%w=w
if %f=%w then 
series pcn=(x-x(-n))/x(-n)
series pcna=pcn*52/n
endif 
endsub

Posted: **Wed Oct 20, 2010 6:15 am**

Code: Select all

subroutine pcna(series x, scalar n)  
%w="w"
if @pagefreq=%w then 
series pcn=(x-x(-n))/x(-n)
series pcna=pcn*52/n
endif 
endsub

Posted: **Wed Oct 20, 2010 8:16 am**

Thanks Trubador for your reply and code.

However I tried it and it still doesn't work. I also used
if @eqna(@pagefreq, %w)=1 for the purpose of comparing two strings, but it's not working either.

I am not sure if Eviews 7 allows to compare two strings directly like %f=%w .

Posted: **Wed Oct 20, 2010 8:36 am**

Code: Select all


if @pagefreq="W" then

(In other words, case matters)

Posted: **Fri Oct 22, 2010 5:35 am**

Thank you so much. It totally works now.

EViews.com

String comparison (a question about @pagefreq)

String comparison (a question about @pagefreq)

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Re: String comparison (a question about @pagefreq)

Re: String comparison (a question about @pagefreq)

Re: String comparison (a question about @pagefreq)