Question

Write a function called get_distance that accepts two character vector inputs representing the names of two cities. The function returns the distance between them as an output argument called distance. For example, the call get_distance('Seattle, WA' Variable distance has an incorrect value.​

Answer 1

Answer:

function y = get_distance(city_3_1,city_3_2)

global raw;

[~,~,raw] = xlsread('Cities.xlsx');

city_3 = {};

for i = 1:337

   city_3{1,i} = raw{1,i};

end

city_3_4 = {};

for j = 1:337

   city_3_4{1,j} = raw{j,1};

end

search_c1 = strcmp(city_3_4,city_3_1);

for ii = 1:337

   if (search_c1(1,ii) == 1)

       break

   else

       ii = 1;

   end

end

search_c2 = strcmp(city_3,city_3_2);

for jj = 1:337

   if (search_c2(1,jj) == 1)

       break

   else

       jj = 1;

   end

end

if ((ii == 1) || (jj == 1))

   y = -1;

else

   y = raw{ii,jj}(1,1);

end

distance = y;

end

Step-by-step explanation:

Let's consider,

We have "Cities.xlsx" file with all the city names and distances. Above function will read data from "Cities.xlsx" file and search for the given cities in file, if city is found then it will calculate distance in y and return in distance veriable.

if cities not found then it will return -1 value as distance variable.