Cody

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

Solution 1698474

Submitted on 22 Dec 2018 by Jaap Rijnders
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### 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 NaN 1 2 NaN 17 3 -4 NaN NaNList = 1×9 logical array 0 1 0 0 1 0 0 0 1 NaNPos = 2 x = 0 0 1 2 NaN 17 3 -4 NaN NaNList = 1×9 logical array 0 0 0 0 1 0 0 0 1 NaNPos = 5 x = 0 0 1 2 2 17 3 -4 NaN NaNList = 1×9 logical array 0 0 0 0 0 0 0 0 1 NaNPos = 9 x = 0 0 1 2 2 17 3 -4 -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 NaN 1 2 NaN NaN 17 3 -4 NaN NaNList = 1×10 logical array 0 1 0 0 1 1 0 0 0 1 NaNPos = 2 x = 0 0 1 2 NaN NaN 17 3 -4 NaN NaNList = 1×10 logical array 0 0 0 0 1 1 0 0 0 1 NaNPos = 5 x = 0 0 1 2 2 NaN 17 3 -4 NaN NaNList = 1×10 logical array 0 0 0 0 0 1 0 0 0 1 NaNPos = 6 x = 0 0 1 2 2 2 17 3 -4 NaN NaNList = 1×10 logical array 0 0 0 0 0 0 0 0 0 1 NaNPos = 10 x = 0 0 1 2 2 2 17 3 -4 -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 NaN NaNList = 1×5 logical array 0 1 1 1 1 NaNPos = 2 x = 0 0 NaN NaN NaN NaNList = 1×5 logical array 0 0 1 1 1 NaNPos = 3 x = 0 0 0 NaN NaN NaNList = 1×5 logical array 0 0 0 1 1 NaNPos = 4 x = 0 0 0 0 NaN NaNList = 1×5 logical array 0 0 0 0 1 NaNPos = 5 x = 0 0 0 0 0 x = 0 0 0 0

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

x = 0 1 2 3 4 5 6 7 8 9 10 NaN NaNList = 1×12 logical array 0 0 0 0 0 0 0 0 0 0 0 1 NaNPos = 12 x = 0 1 2 3 4 5 6 7 8 9 10 10 x = 1 2 3 4 5 6 7 8 9 10 10