starting values with interval and condition

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ch2324
Posts: 133
Joined: Fri May 10, 2013 10:52 am

starting values with interval and condition

Postby ch2324 » Fri Jan 08, 2016 4:58 am

hi,
how can start values (param) with the interval with this cases:
1/c(1)=[0.1; 0.6], inside interval (take values betwwen 0.1 to 0.6)
2/c(1)=]0.1; 0.6[, outside interval (not from 0.1 to 0.6)
3/c(1)=]0.1; 0.6] all values limited at 0.6
4/c(1)=[0.1; 0.6[ from 0.1 and all outhers values
5/c(1)‹0.2
6/c(1)‹=0.2
7/c(1)›0.5
8/c(1)›=0.5
9/c(1)=0.2 just take one value
i seen than i can include a line that begins with param:
param c(1) 0.2 c(2) 0.3.....etc

can you help me

EViews Gareth
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Posts: 13312
Joined: Tue Sep 16, 2008 5:38 pm

Re: starting values with interval and condition

Postby EViews Gareth » Fri Jan 08, 2016 9:04 am

Not really sure what you want here.

You want to generate random numbers between those values and use those random numbers as starting values?
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ch2324
Posts: 133
Joined: Fri May 10, 2013 10:52 am

Re: starting values with interval and condition

Postby ch2324 » Fri Jan 08, 2016 10:16 am

i have this model
y c x1 x2 x3
1st case:
c(1)=0.2 take just 0.2
c(2) and c(3) and c(4) between [0.2; 0.6]
2nd case
c(1)...c(4) just take value outside ]0.2; 0.6[
3rd case:
c(1)....c(4)‹=0.6
can i make that the coef take value or take the value between interval.
you understood me.

EViews Gareth
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Re: starting values with interval and condition

Postby EViews Gareth » Fri Jan 08, 2016 10:36 am

ok, so you're not talking about starting values at all? You just want to impose restrictions on the final estimated values?
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ch2324
Posts: 133
Joined: Fri May 10, 2013 10:52 am

Re: starting values with interval and condition

Postby ch2324 » Fri Jan 08, 2016 12:45 pm

i can restrict this to use wald test after estimation the model, but how can starting values in this case.
1/c(1)=[0.1; 0.6], c(1) take value just in this interval
2/c(1)=[0.1; 0.6], c(1) take value out side this interval
3/c(1)=]0.1; 0.6] all values limited at 0.6
4/c(1)=[0.1; 0.6[ from 0.1 and all outhers values
5/c(1)‹0.2
6/c(1)‹=0.2
7/c(1)›0.5
8/c(1)›=0.5
9/c(1)=0.2 just take one value
for example for the first case, c(1) should be starting value from 0.1 to 0.6, the second case c(1) should start by value out side [0.1; 0.6]. :oops:

startz
Non-normality and collinearity are NOT problems!
Posts: 3775
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Re: starting values with interval and condition

Postby startz » Fri Jan 08, 2016 1:09 pm

ch2324 wrote:i can restrict this to use wald test after estimation the model, but how can starting values in this case.
1/c(1)=[0.1; 0.6], c(1) take value just in this interval
2/c(1)=[0.1; 0.6], c(1) take value out side this interval
3/c(1)=]0.1; 0.6] all values limited at 0.6
4/c(1)=[0.1; 0.6[ from 0.1 and all outhers values
5/c(1)‹0.2
6/c(1)‹=0.2
7/c(1)›0.5
8/c(1)›=0.5
9/c(1)=0.2 just take one value
for example for the first case, c(1) should be starting value from 0.1 to 0.6, the second case c(1) should start by value out side [0.1; 0.6]. :oops:


param c(1) 0.3
param c(1) -0.3

That does what you said, but I doubt it's what you want.

ch2324
Posts: 133
Joined: Fri May 10, 2013 10:52 am

Re: starting values with interval and condition

Postby ch2324 » Sat Jan 09, 2016 1:14 pm

i mean that i can put limits on estimated coefficient values in my linear regression.

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
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Re: starting values with interval and condition

Postby EViews Gareth » Sat Jan 09, 2016 1:26 pm

So, again, you are not talking about starting values at all?

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