How to make the variable pace, a data type double
4 views (last 30 days)
Show older comments
I am trying to make a function that gives me the pace required given an athletes goal
function pace = required_pace(time,distance) % time = [hrs,mins,secs] distance = km
time=floor(time)
a=time/distance
pace=duration(a,'Format','hh:mm:ss')
end
% Calling the function
time=[0,33,3] % the altheltes goal times
distance=10 %km
required_pace(time,distance)
% i get pace=0:3:18 per km
So, i think i got the right answer but i am required to have the variable pace be a data type double and i am not sure how i am meant to write the function code to get that
0 Comments
Accepted Answer
Stephen23
on 1 Sep 2021
Edited: Stephen23
on 1 Sep 2021
T = [0,33,3]; % the atheletes goal time [H,M,S]
D = 10; % km
P = required_pace1(T,D)
class(P)
P = required_pace2(T,D)
% Using DURATION:
function pace = required_pace1(time,distance) % time = [H,M,S], distance = km
durn = duration(time,'Format','hh:mm:ss.SSSSSSSS');
pace = sscanf(char(durn/distance),'%f:',[1,Inf]);
end
% Without DURATION:
function pace = required_pace2(time,distance) % time = [H,M,S], distance = km
secs = [60*60,60,1]*time(:);
temp = secs/distance;
pace = nan(1,3);
pace(3) = mod(temp,60); % seconds
temp = fix(temp/60);
pace(2) = mod(temp,60); % minutes
temp = fix(temp/60);
pace(1) = temp; % hours
end
2 Comments
Stephen23
on 1 Sep 2021
"for future reference could you explain to me what line ... "
sscanf(char(durn/distance),'%f:',[1,Inf]);
% ^^^^^^^^^^^^^ divide duration by distance
% ^^^^^ ^ convert duration to character
%^^^^^^ ^^^^^^^^^^^^^^ convert character to double
You can easily see the intermediate results yourself by printing them to the command window.
More Answers (1)
See Also
Categories
Find more on Dates and Time in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!