simone zappalà

Last seen: 3 years 前 | 自 2022 起处于活动状态

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统计学

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how to calculate beta
i've 51 stocks with daily yields, i want to know the BETA of my portfolio, someone can help? i know what is the formula and the ...

3 years 前 | 0 个回答 | 0

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choose multiple functions from a larger group
I've 7 function, i want to be able to choose several of them, I know with if and swich i can pick only one of these seven, i nee...

3 years 前 | 3 个回答 | 0

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how to take a value from multiple arrays defined from an expression.
I've 7 arrays(may call them A,B,C to G), each one contain 130 rows and 1 column with different numbers, these numbers are divide...

3 years 前 | 1 个回答 | 0

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max value of N arrays
I've several arrays, all are 130 rows and 1 column with different numbers created from a for cycle, so every row is the result o...

3 years 前 | 2 个回答 | 0

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copy and paste datas from two Arrays into one
I want to create an array containig datas from two different arrays (with the same colmuns but different rows). A=[3 4 6] B=[5...

3 years 前 | 1 个回答 | 0

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HOW TO GROUP THE ELEMENTS OF AN ARRAY
I've a 252*51 array, i want to group it three-by-three elements and do mean of these groups one-by-one, creating a new array 84*...

3 years 前 | 3 个回答 | 0

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HOW CAN CREATE A MATRIX FROM A SINGLE ROW?
I have 12 elements distributed on a single row, i've to put them on a 3x4 matrix, how i do that?

3 years 前 | 1 个回答 | 0

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