Please solve in R Studio. $(7$ pts$)$ Plot the time series of average monthly temperature and sunshine with months $($directly

plot the values given in the Average column with months$).$ Plot separate legends for MERRA and

NARR on the same plot. Provide axis labels, titles, and legends. Comment on the seasonal

variation of these climatic factors.

Hints: Please do not copy paste from here to create an index. These steps are for your references

only. You can consult the video lectures to learn about the syntax.

a$.$ Clear your console and environment.

b$.$ Set up working directory and read your file.

c$.$ Create an index for where Station $=$ MERRA & factor $=$ temperature.

d$.$ Repeat same steps for other three requirements.

i$.,$ Station $=$ MERRA & factor $=$ sunshine.

ii$.$ Station $=$ NARR & factor $=$ temperature.

iii. $,$ Station $=$ NARR & factor $=$ sunshine.

e$.$ Using these indices extract the data from column named as "Monthly Average".

f$.$ Plot the extracted columns with months. For simplicity you can plot the months as $x=1$:$24$

on x$-$axis. Provide all labels and put limits on axis. g$.$ Use par$($new$=$TRUE$)$ and create plot for NARR over the previous plot. Remember to put

your axis and labels as blank. xlab$="",$ ylab$="".$ Put the same limits for y axis in both plots.

Put legend

h$.$ In total you need to create two plot as:

i$.,$ Plot $1$: Station $=$ MERRA & factor $=$ temperature and Station $=$ NARR & factor $=$

temperature

ii$.,$ Plot $2$: Station $=$ MERRA & factor $=$ sunshine and Station $=$ NARR & factor $=$

sunshine

Your plots should look like above plots.