$\%\%$ Structures ABCs

$\%\%$ Given Input Variables:

$\%1.$ a$\_$time $-$ A string of some time

$\%2.$ a$\_$date $-$ Some numerical date

$\%3.$ b$\_$time $-$ A string of some time

$\%4.$ b$\_$date $-$ Some numerical date

$\%5.$ st$1-$ A structure with at least the field 'City'

$\%6.$ st$2-$ A structure with at least the fields 'State' and 'TimeZone'

$\%7.$ f$1-$ A string of a fieldname in the structure st$2$

$\%8.$ var$1-$ An unknown value

$\%$ A$.$ Creating structures manually. Create a structure with two fields:

$\%$ 'time' and 'date'. In the first field, 'time', store the value

$\%$ contained in the variable $"$a$\_$time". In the second field, 'date', store

$\%$ the value contained in the variable $"$a$\_$date". Do $*$NOT$*$ use the

$\%$ functions struct$()$ or setfield$()$ for this problem. Your final answer should

$\%$ be stored in the variable $\text{'}$A$\text{'}.$

A $=[]$;

A$.$time $="$a$\_$time"

A$.$date $="$a$\_$date"

$\%$ DO NOT DELETE OR MODIFY THIS LINE $($AUTOGRADER$\_$CHECK$\_$A$)$

$\%$ B$.$ Creating structures using struct$().$ Create a structure with two

$\%$ fields: 'time' and 'date'. In the first field, 'time', store the value

$\%$ contained in the variable A $=[]$;

$\%$ the value contained in the variable $"$b$\_$date". You $*$MUST$*$ use the

$\%$ function struct$()$ for this problem. Your final answer should

$\%$ be stored in the variable $\text{'}$B$\text{'}.$

B $=$ struct$($time$,"$b$\_$time",date,"b$\_$date"$)$;

$\%$ C$.$ Accessing. What is the value of the field named 'State' in st$2?$ You

$\%$ may $*$NOT$*$ use getfield$()$ for this problem. Your final answer should

$\%$ be stored in the variable $\text{'}$C$\text{'}.$

C $=$ st$2.$State;

$\%$ D$.$ Accessing indirectly. The variable f$1$ will contain a string

$\%$ representing a fieldname. What is the value of the field f$1$ in the

$\%$ structure st$2?$ You may $*$NOT$*$ use getfield$()$ for this problem. Your

$\%$ final answer should be stored in the variable $\text{'}$D$\text{'}.$

D $=[]$;

$\%$ E$.$ fieldnames$().$ Use the function fieldnames$()$ to create a cell array

$\%$ containing a list of all the fields from st$2.$ Your final answer should

$\%$ be stored in the variable $\text{'}$E$\text{'}.$

E $=[]$;

$\%$ F$.$ rmfield$().$ Use the function rmfield$()$ to create a structure equal to

$\%$ st$2$ with the field named 'TimeZone' removed. The original structure st$2$

$\%$ should not be changed. Your final answer should be stored in the variable $\text{'}$A$\text{'}.$

F $=[]$;

$\%$ G$.$ After running the following line of code, will the field named 'City'

$\%$ exist within st$1?$ If yes, the answer should yield the logical true,

$\%$ and if no$,$ the answer should yield the logical value false. $($I$)$

$\%>>$ rmfield$($st$1,$'City'$)$

$\%$ Important Note: This is not the same as st$1=$ rmfield$($st$1,$'City'$)$

G $=[]$;

$\%$ H$.$ isstruct$().$ Is the value of var$1$ a structure? You answer should be

$\%$ either the logical true if var$1$ is a structure and false otherwise.

H $=[]$;

$\%$ I. isfield$().$ Does st$1$ have a field named 'Major'? You answer should be

$\%$ either the logical value true if st$1$ does have a field named 'Major'

$\%$ and false otherwise.

I $=[]$;