Cody

Problem 970. Piecewise linear interpolation

Solution 2643733

Submitted on 2 Jul 2020
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Test Suite

Test Status Code Input and Output
1   Fail
x=[1 1 ; 3 0 ; 1 1]; y=[5 3]; y_correct=[1 1 ; 1.5 0.75 ; 2 0.5 ; 2.5 0.25 ; 3 0 ; 2 0.5 ; 1 1]; assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

out = 1.0000 2.0000 1.5000 1.5000 2.0000 1.0000 2.5000 0.5000 3.0000 0 2.5000 0.5000 1.0000 1.0000

Assertion failed.

2   Fail
x=[1 1 ; 2 3 ; 4 2 ; 5 -2]; y=[6 5 3]; y_correct=[1 1 ; 1.2 1.4 ; 1.4 1.8 ; 1.6 2.2 ; 1.8 2.6 ; 2 3 ; 2.5 2.75 ; 3 2.5 ; 3.5 2.25 ; 4 2 ; 4.5 0 ; 5 -2]; assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

Error using reshape Product of known dimensions, 2, not divisible into total number of elements, 27. Error in tracers (line 14) out=[reshape(b,[],2);x(end,:)] Error in Test2 (line 4) assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

3   Fail
a=ceil(100*rand)+10; x=[0 0 ; a a]; y=a+1; y_correct=[0:a ; 0:a]'; assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

Index exceeds the number of array elements (1). Error in tracers (line 10) a=linspace(x(i,j),x(i+1,j),y(j)); Error in Test3 (line 5) assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

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