Displaying 3 results from an estimated 3 matches for "gamma_i".
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gamma_ij
2013 Mar 22
1
Integration of vector syntax unknown
Hello,
I'm very new to using R, but I was told it could do what I want. I'm not sure how best to enter the information but here goes...
I'm trying to transfer the following integral into R to solve for ln(gamma_1), on the left, for multiple instances of gamma_i and variable N_i.
gamma_i is, for example, (0, 0.03012048, 0.05000000, 0.19200000, 0.44000000, 0.62566845)
N_i (N_1 or N_2) is between 0 and 1 so that N_1+N_2=1, so if N_1=(0,.166,.180,.250,.325,.374), then N_2=(1.000, 0.834, 0.820, 0.750, 0.675, 0.626)
a_i (a_1 or a_2)
So, for gamma_i (in thi...
2013 Oct 19
2
ivreg with fixed effect in R?
I want to estimate the following fixed effect model:
y_i,t = alpha_i + beta_1 x1_t + beta_2 x2_i,tx2_i,t = gamma_i + gamma_1
x1_t + gamma_2 Z1_i + gamma_3 Z2_i
I can use ivreg from AER to do the iv regression.
fm <- ivreg(y_i,t ~ x1_t + x2_i,t | x1_t + Z1_i + Z2_i,
data = DataSet)
But, I'm not sure how can I add the fixed effects.
Thanks!
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2011 Nov 24
1
Changing graphic titles when using bquote and resizing the graphic window
...raphic window using the mouse. It happens on both quartz and x11 devices. Here's a reproducible example:
par(mfrow = c(1,3))
for (i in 1:3){
title <- as.expression(bquote(gamma[.(i)]))
plot(1:10, main = title)
}
Once you ran the code, the figure displays as expected --- each title is $\gamma_i$, $i=1, 2, 3$. Now if you resize manually the graphic window using the mouse all the titles will be set to $\gamma_3$.
In case this is useful, here's the ouput of sessionInfo().
> sessionInfo()
R version 2.14.0 (2011-10-31)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
locale:
[1] C...