Problem 73. Replace NaNs with the number that appears to its left in the row.

Solution 497881

Submitted on 9 Sep 2014 by Aslak Grinsted

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Test	Status	Code Input and Output
1	Pass	%% x = [NaN 1 2 NaN 17 3 -4 NaN]; y_correct = [0 1 2 2 17 3 -4 -4]; assert(isequal(replace_nans(x),y_correct)) x = 0 1 2 2 17 3 -4 NaN x = 0 1 2 2 17 3 -4 -4
2	Pass	%% x = [NaN 1 2 NaN NaN 17 3 -4 NaN]; y_correct = [ 0 1 2 2 2 17 3 -4 -4]; assert(isequal(replace_nans(x),y_correct)) x = 0 1 2 2 NaN 17 3 -4 NaN x = 0 1 2 2 2 17 3 -4 NaN x = 0 1 2 2 2 17 3 -4 -4
3	Pass	%% x = [NaN NaN NaN NaN]; y_correct = [ 0 0 0 0]; assert(isequal(replace_nans(x),y_correct)) x = 0 0 NaN NaN x = 0 0 0 NaN x = 0 0 0 0
4	Pass	%% x = [1:10 NaN]; y_correct = [ 1:10 10]; assert(isequal(replace_nans(x),y_correct)) x = 1 2 3 4 5 6 7 8 9 10 10