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Long Hong


Last seen: alrededor de 1 año hace |  Con actividad desde 2020

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How to get linearly independent subset of matrix columns in a high-dimensional matrix
Dear all: I have a few sets of fixed effects in my linear model, which has a collinearity problem since the rank does not match...

más de 3 años hace | 1 respuesta | 0

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sparse matrix with data type as 'single'
Dear all: I have a very large sparse matrix that I hope to reduce the size further more. I noticed that in full matrix, one cou...

casi 4 años hace | 1 respuesta | 1

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identify peers within a firm - sparse matrix only
Dear all: This is a follow-up post from my previous one, which has been solved by @Image Analyst. Now I have encountered a new ...

casi 4 años hace | 0 respuestas | 0

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Get the diagonal without calculating the explicit matrix
Dear all: I am trying to calculate a diagonal of a matrix (denoted A), which is formed by multiplying two large-dimensional mat...

alrededor de 4 años hace | 2 respuestas | 0

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Identify the peers within a firm
Dear all: I am working on a panel dataset, which contains worker ID, firm ID, and year. Each worker works for one firm only in ...

alrededor de 4 años hace | 1 respuesta | 0

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