Problem 44314. A Simple Tide Gauge with MATLAB

Created by AMITAVA BISWAS

Solve Later

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You are standing in a few inches of sea water on a beach.

You are wondering whether the high tide is coming soon or it has just passed.

Therefore, you will write a code in MATLAB to analyze following data.

You followed the sequence of water lines left by several swash of waves.

The data array A contains the distances the water traveled past your feet during each upward swash of waves.

Your code will return 1 if the high tide is coming soon.

Your code will return 0 if the high tide has just passed.

Solve

Solution Stats

687 Solutions
429 Solvers

Last Solution submitted on Jul 02, 2020

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Shibabrat on 8 Dec 2017

Is there a reference, that I can use, for predicting high/low tide from the water line height? I don't want to construct a solution based on the test suite data.

Rafael Siqueira Telles Vieira on 2 Jul 2020 at 3:39

We can use derivatives for predicting the high tide (diff) when we can assume that a function is increasing or decreasing (even with some noise).

Solution Comments

Solution 1305556

2 Comments

2 Comments

Ashley Goddard on 20 Oct 2017

I would love to see some better solutions than my cheat!

Danuanping on 21 Dec 2017

what about tide=A(1)<10 !

Solution 1289911

1 Comment

1 Comment

James on 16 Oct 2017

Lots of ways to get the right answer for this test suite...but I think this is one of the silliest.

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Problem Tags

beach cody5 earth ebb forecast moon ocean prediction regression sun tide