write_investment_value_panel.RdThe function writes the investment value for a given ticker
and day as a csv file to path. The investment value is defined as the sum
of the current value of the investment including current value of a sale and
dividends excluding current costs from purchasing the investment.
See write_investment_value_panels if you want to apply this function to all
tickers in your table of transactions.
write_investment_value_panel(ticker, path)A single character string containing the ticker symbol.
A single character string. Path where data are stored.