Re: Using Stata’s SEM Features to Model the Beck Depression Inventory
The short answer is "No" - Stata currently fits SEM models for continuous data only.
View ArticleRe: Using Stata’s SEM Features to Model the Beck Depression Inventory
Thank you very much for this post. It is excellent and fits well with my psychometric analysis.I can not reproduce the calculation of the coefficient of Spearman-Brown:corr TotalEven TotalOddlocal SBPF...
View ArticleRe: Using Stata’s SEM Features to Model the Beck Depression Inventory
Thanks Cedric - glad you found it helpful. It looks like there may be a typo in the slides or a something may have happened in the copy-and-paste process. The formatting should be %5.4f rather than...
View ArticleRe: Using Stata’s SEM Features to Model the Beck Depression Inventory
Thank you! it works
View ArticleRe: Using Stata’s SEM Features to Model the Beck Depression Inventory
Thanks for the prompt reply. This is a huge limitation for any kind of psychometric work which is a shame since the sem suite seems fairly powerful. I'm sure you're working on it but this would be...
View ArticleRe: Understanding matrices intuitively, part 1
wow! Extremely informative and valuable article.
View ArticleRe: Understanding matrices intuitively, part 1
It blows my mind that is not how linear algebra is introduced, I realized the same thing doing computer graphics and now find matrices easy. What's more, you can explain vector-matrix multiplication...
View ArticleRe: Understanding matrices intuitively, part 1
Great article, very valuable, this makes understanding matrices so much easier.
View ArticleRe: Comments are now open!
If I understand correctly, the eigenaxes and eigenvalues describe the amount and direction of compression/expansion. I find myself wondering what the universe of possible transformations looks like -...
View ArticleRe: Understanding matrices intuitively, part 1
I get everything up until the part about linear regressions. I kind of get it but you're using terminology that I don't know. What is X`X? Is that matrix multiplication?
View ArticleRe: Understanding matrices intuitively, part 1
X'X is a way of writing X-transpose multiplied by X. I'm using prime to indicate transpose.
View ArticleRe: Understanding matrices intuitively, part 1
Let X = a, b \ c, d then X' = a, c \ b, d?
View ArticleRe: Comments are now open!
Hello? can someone answer my question? Im getting this ERROR message after going to the postestimation and prediction part for creating a regression line : . predict predicted wage, xb wage already...
View ArticleRe: How to successfully ask a question on Statalist
Hi everyone! I was wondering if you could help me I got this output and it seems strange.... What is wrong with this output? chi2 values???Thank you a ton! Structural | t4_YARC_Acc_ASc_mean <- |...
View ArticleRe: How to successfully ask a question on Statalist
Hi. I'd like to run a Markov chain. I don't even know how to organise data.Thank you!
View ArticleRe: Understanding matrices intuitively, part 2, eigenvalues and eigenvectors
This applet allows to interactivelly manipulate this concepts (for only two dimensions):http://scienceapplets.blogspot...
View ArticleRe: Using Stata’s random-number generators, part 1
Thanks for the very helpful explanation, William.I am trying to build up "fake" dataset, using random generated variables. Of each variable I know:1) number of observations2) mean3) std error4) min and...
View ArticleRe: Use poisson rather than regress; tell a friend
Dear Bill,I was delighted to see your recommendation to use poisson rather than regress, but I have to confess that I was a bit disappointed not to see a mention to the paper Silvana Tenreyro and I...
View ArticleRe: Use poisson rather than regress; tell a friend
Joao Santos Silva is correct, my blog post is directly related to Santos Silva and Tenreyro's paper, Santos Silva, J.M.C., S. Tenreyro 2006. "The log of gravity", The Review of Economics and Statistics...
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