Question $1\mathrm{.}5.$ Assign the name by$\_$content to a DataFrame which counts the number of apps per 'Content Rating', indexed by 'Content Rating'.

Hint: To keep only certain columns in a DataFrame, call $.$get with a list of the names of the columns you want to keep.

In$[72]$:

by$\_$content $=$ apps.get$([\text{'}$Content Rating'$]).$groupby$(\text{'}$Content Rating'$).$count$()$

by$\_$content

Out$[72]$:

Content RatingAdults only $18+$EveryoneEveryone $10+$Mature $17+$TeenUnrated

In$[71]$:

grader.check$("$q$1\_5")$

Out$[71]$:

q$1\_5$

results:

q$1\_5-1$

result:

Test case passed!

q$1\_5-2$

result:

Test case passed!

q$1\_5-3$

result:

Trying: by$\_$content.get$($by$\_$content.columns$[0]).$index$[0]==$ 'Adults only $18+\text{'}$ Expecting: True $**********************************************************************$ Line $1,$ in q$1\_52$ Failed example: by$\_$content.get$($by$\_$content.columns$[0]).$index$[0]==$ 'Adults only $18+\text{'}$ Exception raised: Traceback $($most recent call last$)$: File $"/$opt$/$conda$/$lib$/$python$3\mathrm{.}9/$doctest$.$py$",$ line $1336,$ in $\_\_$run exec$($compile$($example$.$source, filename, "single", File $"",$ line $1,$ in by$\_$content.get$($by$\_$content.columns$[0]).$index$[0]==$ 'Adults only $18+\text{'}$ File $"/$opt$/$conda$/$lib$/$python$3\mathrm{.}9/$site$-$packages$/$pandas$/$core$/$indexes$/$base$.$py$",$ line $5320,$ in $\_\_$getitem$\_\_$ return getitem$($key$)$ IndexError: index $0$ is out of bounds for axis $0$ with size $0$

q$1\_5-4$

result:

Trying: by$\_$content.get$($by$\_$content.columns$[0]).$iloc$[0]==3$ # There are $3$ apps with Content Rating 'Adults only $18+\text{'}$ Expecting: True $**********************************************************************$ Line $1,$ in q$1\_53$ Failed example: by$\_$content.get$($by$\_$content.columns$[0]).$iloc$[0]==3$ # There are $3$ apps with Content Rating 'Adults only $18+\text{'}$ Exception raised: Traceback $($most recent call last$)$: File $"/$opt$/$conda$/$lib$/$python$3\mathrm{.}9/$doctest$.$py$",$ line $1336,$ in $\_\_$run exec$($compile$($example$.$source, filename, "single", File $"",$ line $1,$ in by$\_$content.get$($by$\_$content.columns$[0]).$iloc$[0]==3$ # There are $3$ apps with Content Rating 'Adults only $18+\text{'}$ File $"/$opt$/$conda$/$lib$/$python$3\mathrm{.}9/$site$-$packages$/$pandas$/$core$/$indexes$/$base$.$py$",$ line $5320,$ in $\_\_$getitem$\_\_$ return getitem$($key$)$ IndexError: index $0$ is out of bounds for axis $0$ with size $0$