Interpolate include NaN data.
显示 更早的评论
Data likes this
-----
3
NaN
NaN
7
NaN
NaN
2
NaN
NaN
19
NaN
NaN
12
-----
How interpolate NaN data?
I try interp1 fuction. But I failed.
Please help me.
1 个评论
Jan
2016-11-14
Whenever you post "failed" in the forum, add your code and explain the error.
采纳的回答
John D'Errico
2016-11-14
编辑：John D'Errico
2016-11-14
0 个投票
Download inpaint_nans from the File Exchange. Although interp1 would also have been able to solve the problem too. inpaint_nans is far simpler to use for this though.
4 个评论
Jeong_evolution
2016-11-14
John D'Errico
2016-11-14
编辑：John D'Errico
2016-11-14
Why is one line of code difficult, with NO extra arguments needed?
x = [3
NaN
NaN
7
NaN
NaN
2
NaN
NaN
19
NaN
NaN
12];
y = inpaint_nans(x)
y =
3
5.4342
7.0427
7
4.4804
1.9813
2
7.0339
13.796
19
19.359
16.487
12
Are you seriously trying to tell me that is difficult to use?
John D'Errico
2016-11-14
This is easier?
k = find(~isnan(x));
y = interp1(x(k),y(k),1:numel(x));
It is not difficult. But you cannot claim it to be simpler to use interp1 here.
Jeong_evolution
2016-11-18
更多回答（1 个）
Jan
2016-11-14
data = [3, NaN, NaN, 7, NaN, NaN, 2, NaN, NaN, 19, NaN, NaN, 12];
miss = isnan(data);
data(miss) = interp1(data(~miss), find(~miss), find(miss))
4 个评论
Jeong_evolution
2016-11-14
Jan
2016-11-14
"~" is the NOT operator. Try this:
data = [3, NaN, NaN, 7, NaN, NaN, 2, NaN, NaN, 19, NaN, NaN, 12];
miss = isnan(data);
disp(miss)
disp(~miss)
Jeong_evolution
2016-11-18
Jeong_evolution
2016-11-18
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