Community Profile # Luca

##### Last seen: 4 days ago
14 total contributions since 2021

#### Luca's Badges

• View details...

Contributions in
View by

Question

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...

1 month ago | 1 answer | 0

### 1

answer

Question

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...

1 month ago | 1 answer | 0

### 1

answer

Question

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...

1 month ago | 1 answer | 0

### 1

answer

Question

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...

1 month ago | 2 answers | 0

### 2

answers

Question

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...

1 month ago | 0 answers | 0

### 0

answers

Question

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...

2 months ago | 1 answer | 0

### 1

answer

Question

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...

2 months ago | 1 answer | 0

### 1

answer

Question

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...

2 months ago | 0 answers | 0

### 0

answers

Question

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 ~= ...

2 months ago | 0 answers | 0

### 0

answers

Question

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...

2 months ago | 0 answers | 0

### 0

answers

Question

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 ...

2 months ago | 1 answer | 0

### 1

answer

Question

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...

2 months ago | 0 answers | 0

### 0

answers

Question

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...

2 months ago | 1 answer | 1

### 1

answer

Question

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...

2 months ago | 1 answer | 0

answer