Cody

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

Solution 40718

Submitted on 14 Feb 2012 by JerryJames
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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))

x = 0 1 2 NaN 17 3 -4 NaN rep = 1 rep = 2 x = 0 1 2 2 17 3 -4 NaN rep = 17 rep = 3 rep = -4 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 NaN NaN 17 3 -4 NaN rep = 1 rep = 2 x = 0 1 2 2 NaN 17 3 -4 NaN x = 0 1 2 2 2 17 3 -4 NaN rep = 17 rep = 3 rep = -4 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 NaN NaN NaN 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))

rep = 1 rep = 2 rep = 3 rep = 4 rep = 5 rep = 6 rep = 7 rep = 8 rep = 9 rep = 10 x = Columns 1 through 10 1 2 3 4 5 6 7 8 9 10 Column 11 10

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