Cody

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

Solution 201301

Submitted on 6 Feb 2013 by Jeremy
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Test Suite

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))

y = [] y = 0 y = 0 1 y = 0 1 2 y = 0 1 2 2 y = 0 1 2 2 17 y = 0 1 2 2 17 3 y = 0 1 2 2 17 3 -4 y = 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))

y = [] y = 0 y = 0 1 y = 0 1 2 y = 0 1 2 2 y = 0 1 2 2 2 y = 0 1 2 2 2 17 y = 0 1 2 2 2 17 3 y = 0 1 2 2 2 17 3 -4 y = 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))

y = [] y = 0 y = 0 0 y = 0 0 0 y = 0 0 0 0

4   Pass
%% x = [1:10 NaN]; y_correct = [ 1:10 10]; assert(isequal(replace_nans(x),y_correct))

y = [] y = 1 y = 1 2 y = 1 2 3 y = 1 2 3 4 y = 1 2 3 4 5 y = 1 2 3 4 5 6 y = 1 2 3 4 5 6 7 y = 1 2 3 4 5 6 7 8 y = 1 2 3 4 5 6 7 8 9 y = 1 2 3 4 5 6 7 8 9 10 y = 1 2 3 4 5 6 7 8 9 10 10