I have this data already in long format suitable for ggplot$2.$ I am using this R code to plot cumulative returns of all stocks in $1$ graph. Can you provide the R code. Mine keeps giving error "geom$\_$path: Each group consists of only one observation. Do you need to adjust the group aesthetic?" WHy?

ggplot$($merged$\_$data$\_$long, aes$($x $=$ Date, y $=$ Cumulative$\_$Return, color $=$ Stock$))+$

geom$\_$line$()+$

labs$($title $=$ "Cumulative Returns of AAPL and TSLA",

x $=$ "Date",

y $=$ "Cumulative Returns",

color $=$ "Stock"$)+$

theme$\_$minimal$()$te Stock Cumulative$\_$Return

Data below:

$2015-02-27$ AAPL $0\mathrm{.}105252332$

$2015-02-27$ TSLA $-0\mathrm{.}001276991$

$2015-03-31$ AAPL $0\mathrm{.}070578632$

$2015-03-31$ TSLA $-0\mathrm{.}072838823$

$2015-04-30$ AAPL $0\mathrm{.}076773467$

$2015-04-30$ TSLA $0\mathrm{.}110265248$

$2015-05-29$ AAPL $0\mathrm{.}130565242$

$2015-05-29$ TSLA $0\mathrm{.}231827110$

$2015-06-30$ AAPL $0\mathrm{.}088477075$

$2015-06-30$ TSLA $0\mathrm{.}317583607$

$2015-07-31$ AAPL $0\mathrm{.}052637118$

$2015-07-31$ TSLA $0\mathrm{.}307220127$

$2015-08-31$ AAPL $-0\mathrm{.}012049551$

$2015-08-31$ TSLA $0\mathrm{.}223280999$

$2015-09-30$ AAPL $-0\mathrm{.}033602889$

$2015-09-30$ TSLA $0\mathrm{.}220039303$

$2015-10-30$ AAPL $0\mathrm{.}047003010$

$2015-10-30$ TSLA $0\mathrm{.}016355609$

$2015-11-30$ AAPL $0\mathrm{.}045945104$

$2015-11-30$ TSLA $0\mathrm{.}130943095$

$2015-12-31$ AAPL $-0\mathrm{.}069347331$

$2015-12-31$ TSLA $0\mathrm{.}178831155$

$2016-01-29$ AAPL $-0\mathrm{.}139371937$

$2016-01-29$ TSLA $-0\mathrm{.}060903677$

$2016-02-29$ AAPL $-0\mathrm{.}135436453$

$2016-02-29$ TSLA $-0\mathrm{.}057318265$

$2016-03-31$ AAPL $-0\mathrm{.}025454898$

$2016-03-31$ TSLA $0\mathrm{.}128536379$

$2016-04-29$ AAPL $-0\mathrm{.}161814314$

$2016-04-29$ TSLA $0\mathrm{.}182514793$

$$

$2016-10-31$ AAPL $0\mathrm{.}03928824$

$2016-10-31$ TSLA $-0\mathrm{.}02883099$

$2016-11-30$ AAPL $0\mathrm{.}02246611$

$2016-11-30$ TSLA $-0\mathrm{.}06974453$

$2016-12-30$ AAPL $0\mathrm{.}07149890$

$2016-12-30$ TSLA $0\mathrm{.}04955802$

$2017-01-31$ AAPL $0\mathrm{.}12265923$

$2017-01-31$ TSLA $0\mathrm{.}23737730$

$2017-02-28$ AAPL $0\mathrm{.}27850483$

$2017-02-28$ TSLA $0\mathrm{.}22784880$

$2017-03-31$ AAPL $0\mathrm{.}34075469$

$2017-03-31$ TSLA $0\mathrm{.}36689593$

$2017-04-28$ AAPL $0\mathrm{.}34066172$

$2017-04-28$ TSLA $0\mathrm{.}54258354$

$2017-05-31$ AAPL $0\mathrm{.}43785011$

$2017-05-31$ TSLA $0\mathrm{.}67490178$

$2017-06-30$ AAPL $0\mathrm{.}35558538$

$2017-06-30$ TSLA $0\mathrm{.}77608054$

$2017-07-31$ AAPL $0\mathrm{.}39991809$

$2017-07-31$ TSLA $0\mathrm{.}58875253$

$2017-08-31$ AAPL $0\mathrm{.}55601880$

$2017-08-31$ TSLA $0\mathrm{.}74803549$

$2017-09-29$ AAPL $0\mathrm{.}46227750$

$2017-09-29$ TSLA $0\mathrm{.}67534386$

$2017-10-31$ AAPL $0\mathrm{.}60383714$

$2017-10-31$ TSLA $0\mathrm{.}62833989$

$2017-11-30$ AAPL $0\mathrm{.}64269510$

$2017-11-30$ TSLA $0\mathrm{.}51694506$

$2017-12-29$ AAPL $0\mathrm{.}61765110$

$2017-12-29$ TSLA $0\mathrm{.}52922399$