Problem 1036. Cell Counting: How Many Draws?

Created by Ned Gulley

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>You are given a cell array containing information about a number of soccer games. Each cell contains one of the following:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>'H', meaning the home team won</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>'A', meaning the away team won</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>'D', meaning a draw, or tie game</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>So if</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ games = {'D','D','A','H','D','H'}]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>then</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ draws = 3]]></w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

1078 Solutions
598 Solvers

Last Solution submitted on Feb 26, 2021

Last 200 Solutions

Problem Comments

Solution Comments

Solution 4601370

1 Comment

1 Comment

Qin-Yong on 15 Jan 2021

function draws = how_many_draws(games)
draws=sum(count(games,'D'));
end

Solution 1868534

3 Comments

3 Comments

SJ Won on 8 Jul 2019

Can someone help? I'm trying to learn how to use cellfun and I don't understand it completely.

Ned Gulley on 9 Jul 2019

Here's one way you can use cellfun to solve this problem. I made an anonymous function called isDraw.

isDraw = @(letter) letter=='D'
d = cellfun(isDraw,games)
draws = sum(d)

JM Lippmann on 22 Oct 2020

Use contains to check how many elements == 'D', then sum

draws = sum(contains(games,'D'))

Solution 1817428

1 Comment

1 Comment

YiXiao Yu on 28 Jan 2021

draws = sum(strcmp(games, 'D'));

Problem Recent Solvers598

Problem Tags

cell arrays

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 1036. Cell Counting: How Many Draws?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers598

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

Problem 1036. Cell Counting: How Many Draws?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers598

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

Players