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Ekaterina Serikova


Actif depuis 2016

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Question


How to see the time difference of the same day for different time zones?
Hello! Could anybody help me in time difference issue? I have a vector of dates with time, char type, like this: "29-Jan-2...

plus de 8 ans il y a | 2 réponses | 0

2

réponses

Question


How can I insert a sequental columns in a matrix with a lag of three columns?
Dear all, I have a two-dimensional matrix A, which contains 914 columns. I would like to create a matrix B and insert every c...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question


How to import dates so that MatLab sees them?
Dear all, I know that that problem was widely discussed, but still none of the previous solutions work for me (( I have a table...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question


How to change to nan values in one matrix based on another logical matrix?
Dear MatLab experts, I have two matrixes: "First" (24 000 by 915) and "Second" (24 000 by 915). "First" consists of differen...

plus de 8 ans il y a | 1 réponse | 0

1

réponse

Question


Why log returns in MatLab are different from log returns in Excel?
Hello, I'm completely stuck with return calculation in matlab. I have three different lines of code that deliver me the same ret...

presque 9 ans il y a | 1 réponse | 0

1

réponse

Question


How to set a condition for sequential number of non NaN values in a vector?
Hello, I have a matrix like that: NaN -0.00042 0.00073 -0.00298 NaN NaN -0.00114 0.00029 0.00265 NaN NaN -0....

presque 9 ans il y a | 2 réponses | 0

2

réponses

Question


Subscript indices must either be real positive integers or logicals only in the loop
Dear all, I'm stuck with the error "Subscript indices must either be real positive integers or logicals." in the code below. ...

presque 9 ans il y a | 2 réponses | 0

2

réponses

Question


How to make 30min intervals from 1min data taking the previous value for NaNs?
Hello, I have a matrix of type double(below). It consists of 1min stock prices (StockA, StockB, etc.). Year ...

presque 9 ans il y a | 2 réponses | 0

2

réponses

Question


How can I make a logical array by comparing two date vectors?
Hello, could you please help me on the following issue. I imported an Excel file containing the vector of dates (44 by 1, type ...

presque 9 ans il y a | 2 réponses | 0

2

réponses