Search found 30 matches

by Ecovi
Wed Sep 10, 2014 2:40 pm
Forum: Programming
Topic: A Loop Which Iterations Take Increasing Amount of Time
Replies: 7
Views: 6980

Re: A Loop Which Iterations Take Increasing Amount of Time

Strange that it is really unfixable in an easy way. I guess the 'used objects name list' is just some data structure that can be simply deleted. Maybe as a workaround only after it gets a thousand elements or something. This really might deserve some more attention, especially now that the 64-bit ve...
by Ecovi
Mon Sep 08, 2014 3:24 pm
Forum: Programming
Topic: A Loop Which Iterations Take Increasing Amount of Time
Replies: 7
Views: 6980

Re: A Loop Which Iterations Take Increasing Amount of Time

That's a fantastic example program. Thanks! The issue is with the creation and deletion of objects with different names. A single EViews program keeps track of all named objects that get created, even if they are deleted. You're creating tens of thousands of named objects (with different names) and...
by Ecovi
Sun Sep 07, 2014 9:38 am
Forum: Programming
Topic: A Loop Which Iterations Take Increasing Amount of Time
Replies: 7
Views: 6980

Re: A Loop Which Iterations Take Increasing Amount of Time

I did some more testing on this. It appears that the combination of creating objects together with performing some operation on them causes the process to take more and more time, if done in a single program. The attached programs allow you to see the issue. The program iteratively creates new objec...
by Ecovi
Wed Aug 20, 2014 7:44 am
Forum: Programming
Topic: Different ways to check for NA
Replies: 4
Views: 3894

Re: Different ways to check for NA

Thanks!
by Ecovi
Wed Aug 20, 2014 7:44 am
Forum: Programming
Topic: Resize or Initialise a Vector or Matrix to NA
Replies: 2
Views: 2714

Re: Resize or Initialise a Vector or Matrix to NA

Okay, a pity though!
by Ecovi
Wed Aug 20, 2014 3:29 am
Forum: Programming
Topic: Resize or Initialise a Vector or Matrix to NA
Replies: 2
Views: 2714

Resize or Initialise a Vector or Matrix to NA

Is there a way to resize (enlarge) a vector or matrix and initialise the new elements to NA instead of zero, without the use of cumbersome for-loops and helping variables?
by Ecovi
Wed Aug 20, 2014 3:27 am
Forum: Programming
Topic: Different ways to check for NA
Replies: 4
Views: 3894

Different ways to check for NA

What is the difference between @isna(a) and a=na in if statements? Which one would be better or faster? The result is the same.
by Ecovi
Mon Aug 18, 2014 2:30 am
Forum: Programming
Topic: @dropmap doesn't work
Replies: 5
Views: 4573

Re: @dropmap doesn't work

Thanks for reconsidering building this. It is true that using delete a* is 'an alternative method of achieving the same thing', but this is not true for the @keeplist option, though maybe you could copy the objects to keep to a new workfile and use copy a* to keep only those objects...
by Ecovi
Mon Aug 18, 2014 2:24 am
Forum: Programming
Topic: A Loop Which Iterations Take Increasing Amount of Time
Replies: 7
Views: 6980

Re: A Loop Which Iterations Take Increasing Amount of Time

Okay, it is going to take some time though to abridge the code and make up something presentable for you. I'll get back to this.
by Ecovi
Sun Aug 17, 2014 2:42 pm
Forum: Programming
Topic: A Loop Which Iterations Take Increasing Amount of Time
Replies: 7
Views: 6980

A Loop Which Iterations Take Increasing Amount of Time

Is there any reason why this loop's iterations, for !i=1 to 100 [do something] next would require increasing amounts of time when there is no reason for that in the code? Perhaps due to some memory quirk? Iteration 100 is a several orders of magnitude slower than the 1st iteration. The statements be...
by Ecovi
Sun Aug 17, 2014 8:08 am
Forum: Bug Reports
Topic: Some fields are not copied when copying state space objects
Replies: 1
Views: 2661

Some fields are not copied when copying state space objects

When copying estimated state space objects (by dragging them, copy/pasting or the copy command), the information criteria fields are not copied along. That is, the new object does not have a BIC, AIC, etc.
by Ecovi
Sun Aug 17, 2014 4:21 am
Forum: Programming
Topic: @dropmap doesn't work
Replies: 5
Views: 4573

Re: @dropmap doesn't work

Thanks for the prompt reply. Why would this not be made possible to work with normal work files though? Also, I searched for it but I must admit I cannot find any reference for this in the Eviews Command and Programmming Reference manual (the latest version from April 2013). In fact, the example und...
by Ecovi
Sat Aug 16, 2014 10:13 am
Forum: Programming
Topic: @dropmap doesn't work
Replies: 5
Views: 4573

@dropmap doesn't work

Maybe I am missing the obvious here, but this program saves all variables instead of dropping them:

Code: Select all

wfcreate u 1 scalar a1 scalar a2 wfsave filename @dropmap a*
What am I doing wrong?
by Ecovi
Sun Aug 10, 2014 5:42 am
Forum: Bug Reports
Topic: Crash Using Switching Regression
Replies: 2
Views: 3128

Crash Using Switching Regression

Reproduce using the following program.

Code: Select all

wfcreate u 1 100 series e=nrnd switchreg e c @prv e(-1)
by Ecovi
Sun May 04, 2014 12:14 pm
Forum: Estimation
Topic: Switching Regression Dependent on Coefficient Vector c?
Replies: 14
Views: 12361

Re: Switching Regression Dependent on Coefficient Vector c?

Thanks a lot, I wasn't entirely sure whether you meant if any errors during initial starting estimates are handled (the amount of which is controlled by startiter) or also the errors during final estimations (controlled by startnum). A little more information on how the randomization works might be ...

Go to advanced search