Cody

Problem 2050. remove nans fast

Solution 371508

Submitted on 17 Dec 2013 by Sean de Wolski
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Test Suite

Test Status Code Input and Output
1   Pass
%% T1 tm=[]; for t=1:100 rng('default'); m=rand(100,100,100); m(m>0.7)=nan; tic o=removenan(m); tm(t)=toc; end rng('default'); m=rand(100,100,100); m(m>0.7)=nan; m(isnan(m))=[]; t_correct=0.019; assert(mean(tm)<t_correct) assert(isequal(o,m'))

2   Pass
%% T2 tm=[]; for t=1:100 rng('default'); m=rand(100,10000); m(m>0.71)=nan; tic o=removenan(m); tm(t)=toc; end rng('default'); m=rand(100,10000); m(m>0.71)=nan; m(isnan(m))=[]; t_correct=0.019; assert(mean(tm)<t_correct) assert(isequal(o,m'))

3   Pass
%% T3 tm=[]; for t=1:100 rng('default'); m=rand(2,500000); m(m>0.69)=nan; tic o=removenan(m); tm(t)=toc; end rng('default'); m=rand(2,500000); m(m>0.69)=nan; m(isnan(m))=[]; t_correct=0.019; assert(mean(tm)<t_correct) assert(isequal(o,m'))

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