Cody

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

Solution 130188

Submitted on 23 Aug 2012 by Carsten
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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))

ans = 2 5 9 xx = 0 0 1 2 2 17 3 -4 -4 ans = 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))

ans = 2 5 6 10 xx = 0 0 1 2 2 NaN 17 3 -4 -4 ans = 6 xx = 0 0 1 2 2 2 17 3 -4 -4 ans = 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))

ans = 2 3 4 5 xx = 0 0 NaN NaN NaN ans = 3 4 5 xx = 0 0 0 NaN NaN ans = 4 5 xx = 0 0 0 0 NaN ans = 5 xx = 0 0 0 0 0 ans = 0 0 0 0

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

ans = 12 xx = Columns 1 through 10 0 1 2 3 4 5 6 7 8 9 Columns 11 through 12 10 10 ans = Columns 1 through 10 1 2 3 4 5 6 7 8 9 10 Column 11 10