1 // Part 2 and 3 about a really dumb investment strategy |
1 // Main Part about a really dumb investment strategy |
2 //====================================================== |
2 //=================================================== |
3 |
3 |
4 |
4 |
5 //two test portfolios |
5 //two test portfolios |
6 |
6 |
7 val blchip_portfolio = List("GOOG", "AAPL", "MSFT", "IBM", "FB", "AMZN", "BIDU") |
7 val blchip_portfolio = List("GOOG", "AAPL", "MSFT", "IBM", "FB", "AMZN", "BIDU") |
8 val rstate_portfolio = List("PLD", "PSA", "AMT", "AIV", "AVB", "BXP", "CCI", |
8 val rstate_portfolio = List("PLD", "PSA", "AMT", "AIV", "AVB", "BXP", "CCI", |
9 "DLR", "EQIX", "EQR", "ESS", "EXR", "FRT", "HCP") |
9 "DLR", "EQIX", "EQR", "ESS", "EXR", "FRT", "HCP") |
10 |
10 |
11 |
11 |
12 // (1) The function below takes a stock symbol and a year as arguments. |
12 // (1) The function below takes a stock symbol and a year as arguments. |
13 // It should read the corresponding CSV-file and reads the January |
13 // It should read the corresponding CSV-file and then extract the January |
14 // data from the given year. The data should be collected in a list of |
14 // data from the given year. The data should be collected in a list of |
15 // strings for each line in the CSV-file. |
15 // strings (one entry for each line in the CSV-file). |
16 |
16 |
17 import io.Source |
17 import io.Source |
18 import scala.util._ |
18 import scala.util._ |
19 |
19 |
20 //def get_january_data(symbol: String, year: Int) : List[String] = ... |
20 //def get_january_data(symbol: String, year: Int) : List[String] = ... |
21 |
21 |
22 |
22 |
23 // (2) From the output of the get_january_data function, the next function |
23 // (2) From the output of the get_january_data function, the next function |
24 // should extract the first line (if it exists) and the corresponding |
24 // should extract the first line (if it exists) and the corresponding |
25 // first trading price in that year with type Option[Double]. If no line |
25 // first trading price in that year with type Option[Double]. If no line |
26 // is generated by get_january_data then the result is None; Some if |
26 // is generated by get_january_data then the result is None; and Some if |
27 // there is a price. |
27 // there is a price. |
28 |
28 |
29 |
29 |
30 //def get_first_price(symbol: String, year: Int) : Option[Double] = ... |
30 //def get_first_price(symbol: String, year: Int) : Option[Double] = ... |
31 |
31 |
36 // stock symbols and the outer list for the years. |
36 // stock symbols and the outer list for the years. |
37 |
37 |
38 |
38 |
39 //def get_prices(portfolio: List[String], years: Range) : List[List[Option[Double]]] = ... |
39 //def get_prices(portfolio: List[String], years: Range) : List[List[Option[Double]]] = ... |
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44 //============================================== |
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45 // Do not change anything below, unless you want |
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46 // to submit the file for the advanced part 3! |
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47 //============================================== |
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48 |
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49 |
42 |
50 // (4) The function below calculates the change factor (delta) between |
43 // (4) The function below calculates the change factor (delta) between |
51 // a price in year n and a price in year n + 1. |
44 // a price in year n and a price in year n + 1. |
52 |
45 |