Displaying 8 results from an estimated 8 matches for "lnq".
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2010 May 03
2
question about the degrees of freedom
...several 2-digit industry codes that i want to use for conducting by-industry analysis but i think there is a problem with the degrees of freedom!
for example, when i do my analysis without any 2-digit industry code, i got the following summary (i have 146574 observations in total):
> abc<-lm(lnQ~lnC+lnM+lnL+lnE+eco+inno, data=ds)
> summary(abc)
Call:
lm(formula = lnQ ~ lnC + lnM + lnL + lnE + eco + inno, data = ds)
Residuals:
Min 1Q Median 3Q Max
-11.01340 -0.17637 -0.02217 0.14974 7.79005
Coefficients:
Estimate Std. Error t value Pr...
2010 May 03
1
question about the degrees of freedom
...he effect of the independent variables on the 11th industry i defined a dummy variable such as:
ind=(ind_2d==11)# this supposed to mean, ind is equal to 11th industry in other words just take into account the firms which has the code 11, am i mistaken here?
and then run the regression,
abc<-lm(lnQ~lnC+lnM+lnL+lnE+eco+inno+ind, data=ds)
>> summary(abc)
>
> Call:
> lm(formula = lnQ ~ lnC + lnM + lnL + lnE + eco + inno + ind,
> data = ds)
>
> Residuals:
> Min 1Q Median 3Q Max
> -11.03392 -0.17647 -0.02301 0.14901 7.74957
>
&g...
2010 Apr 23
1
creating dummy with loop command
...w that way that you have suggested but in fact my case is a little bit complicated than this,
therefore, i am writing a better explanation now,
my model is trying to see the effect of eco-innovative industries on total output, thats why i am trying to estimate by-industry regression:
the model is
lnQ~lnC+lnM+lnL+lnE+eco_inno+inno+(sum)ind_3d
capital,material expendtrs, #labor, energy expendtrs, eco-innovation expenditures and innovation expenditures
and i have in my disposal the 3-digit industry codes where total number of them are 99 ( not all of them belong to the same industry)
so in order t...
2010 Apr 08
1
plm package twoways effect problem
Hello everyone,
I have a peoblem to create the twoways effect in the plm package.
when i try to create the following
dsn1<-plm(lnQ~lnC+lnL+lnM+lnE+eco+RD,data=newdata,effect="twoways",model="within")
i have this error:
Error in rep.int(c(1, numeric(n)), n - 1L) : negative length vectors
are not allowed
and to be honest i have no idea what does it mean!! can someone give me any
idea what it would mean?...
2010 Apr 14
0
total. factor. prodctvty. help!!
...nation of the process, hope there will
be someone who can help me!
suppose i have a basic Cobb-Douglas production function, ( i am not gonna
give many information about the R commands or about the data since my
questionn is rather theoric)
and i run this model with OLS as following;
>mdl1 = lm(lnQ~lnC+lnL+lnM+lnE,data=newdata)
than in the second step, i need to get the predicted residual as a mesure
of "total factor productivity" ==> epsilon(hat)it= lnQit-lnQ(hat)it
and i get the residual by typing;
residuals(mdl1) ==> do i make mistake here or should i write another command...
2010 Mar 29
1
plm package duplication problem
...e effect
this command works just fine, i can even get the summary of "dsn" with
>summary(dsn) which works fine also, however my problem starts when i define
my model and i cant find where do i make mistake!!
i try to create my model with the following command
>dsn.plm <- plm(lnQ~lnC+lnL+lnM+lnE,data=ds,
random.method="walhus",effect="twoways",model="random")
and than i get this error message
duplicate couples (time-id)
Error in pdim.default(index[[1]], index[[2]]) :
so my question is; is there anyone who knows how to overcome with this
err...
2014 Feb 25
2
[LLVMdev] [GSoC 2014] Using LLVM as a code-generation backend for Valgrind
On 02/25/2014 04:50 PM, John Criswell wrote:
>
> I think a more interesting idea would be to use LLVM to perform
> instrumentation and then to use Valgrind to instrument third-party
> libraries linked into the program.
>
> What I'm imagining is this: Let's say you instrument a program with
> SAFECode or Asan to find memory safety errors. When you run the program
>
2014 Feb 26
2
[LLVMdev] [Valgrind-developers] [GSoC 2014] Using LLVM as a code-generation backend for Valgrind
...is it's address (which can vary between runs) and
the binary code itself.
[1] : "Dynamically Translating x86 to LLVM using QEMU"
http://infoscience.epfl.ch/record/149975/files/x86-llvm-translator-chipounov_2.pdf
[2] : llvm-qemu project.
http://code.google.com/p/llvm-qemu/
[3] : "LnQ: Building High Performance Dynamic Binary Translator
with Existing Compiler Backends"
http://people.cs.nctu.edu.tw/~chenwj/slide/paper/lnq.pdf
--
Kirill