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Luca


Last seen: 11 months 前 |  自 2021 起处于活动状态

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统计学

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Reshape data the first row becomes the different columns
Hi, I would like to reshape my data set, that includes different stocks i a year and is in the form of a table. Currently it loo...

1 year 前 | 1 个回答 | 0

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Use splittapply with division
Hi, I have data of total 76 stocks over a year. I would like to normalize the data of each stock by dividing the whole stock t...

1 year 前 | 2 个回答 | 0

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Dividing a row in a table by its first entry which results in a new column with a 1*1 table in each row. How can i change it to the number?
Hi, I want to normalize my row by dividing it by its first entry. Which I'm doing in the following way. D1990.pricenorm = D19...

1 year 前 | 1 个回答 | 0

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Expand a table to match number of rows of an other table
Hi, I have a table T with dimension 1*2. The first column is month and the second year. For example month year...

3 years 前 | 1 个回答 | 0

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Counting years from a date time variable
Hi, I have table with a datetime variable in it from 02.January.1962 to 31.December 2016. i would like to create a new you col...

3 years 前 | 1 个回答 | 0

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How to run if and exist ?
Hi, I'm trying to run this loop. for year= 1962:2016 for id=10000:93436 sub_regress = sub...

3 years 前 | 1 个回答 | 0

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Creating a new column in a table which is true or false
Hi, I have to tables. One is called subsetx the other one is called subsety. In subsetx are two columns one is called ID and t...

3 years 前 | 2 个回答 | 0

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How to keep numbers that are smaller than a certain value?
Hi, I created a table with the value of the 20% percentile for a certain year. I have a second table with diffrent stocks and ma...

3 years 前 | 1 个回答 | 0

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How to sort a table into five subsets?
Hi, I have table with stocks. Now I would like to sort them into subsets according to their size. My goal is to create the 5 s...

3 years 前 | 1 个回答 | 0

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How to reshape a dataset?
Hi, I have a dataset with stock returns for around 50 stocks, which I attached to the question. The time period is from 1962-20...

3 years 前 | 1 个回答 | 0

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How to create subsets?
Hi, I have a dataset of couple of thousend stocks, which is attached to this question. I calculated the market capitalisation...

3 years 前 | 1 个回答 | 0

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Error ~= Invalid types for comparison
Hi, I tried to run this code: D2sub1.RETsm(D2sub1.ID ~= lagmatrix(D2sub1.ID, 1)) = NaN; and get the error Error using ~= ...

3 years 前 | 0 个回答 | 0

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regress function error for matrix multiplication
Hi, I tried to regress stock returns on market returns and I get this error: Applying the function '@(x,y){regress(y,x)}' to...

3 years 前 | 0 个回答 | 0

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How to split an cell array of two numbers into two columns
Hi, After running regress with splitapply(). I get a cell array where each row contains a cell with two numbers. I would like ...

3 years 前 | 1 个回答 | 0

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Problem with accessing data after splitapply and regress
Hi, I have two stocks with daily stock returns and the marketreturns also daily. I ran a regression seperatly for each year an...

3 years 前 | 1 个回答 | 0

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How to use splitapply with fitlm
Hi, I want to run a regression for 2 diffrent stocks for each year of observation separately. So i get a new Betas for each s...

3 years 前 | 1 个回答 | 1

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Calculating standard deviation for each year
Hi, I need to calculate for each stock the standard deviation for each year of observation. I created a subset with to stocks...

3 years 前 | 1 个回答 | 0

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