How to find the NaN's cell address in a file.

1  20
3  NaN
5  35
7  46
9  32
11  56
13  50
15  54
17  NaN
19  64
21  69
23  74
25  35
27  84
29  56
31  94
33  98
35  NaN
37  10
39  98
41  11
43  12
45  51
47  13
49  13
51  NaN
53  14
55  15
57  11
59  NaN
61  16
63  56
65  17
67  18
69  54
71  19
73  97
75  20
77  20
79  NaN
81  21
83  22
85  65
87  23
89  23
91  48
93  24
95  25
97  NaN
99  26

Answer 1

[Walter Roberson]

[r, c] = find(isnan(YourDataArray))

Answer 2

[lokeswara reddy]

thank's alot Mr. Walter Roberson for your grateful answer

Answer 3

[lokeswara reddy]

thank's Mr. Star Strider for your responce