How to add extra columns at specified locations

3 次查看（过去 30 天）
GMabilleau
GMabilleau 2024-2-1
编辑： Bruno Luong 2024-2-1
Hi!
I have a variable called "dataset" that corresponds to a vector containing numbers and nan values. Let say :
dataset = [1, 2, 3, nan, 4, 5, nan, 6, 7]
For the rest of the computation, i need to create a second vector, "dataset2", that lacks the nan values. Let say:
dataset2 = [1, 2, 3, nan, 4, 5, nan, 6, 7]
Some computation is done on dataset2. Let say "dataset2" is transformed into:
dataset2 = [2, 5, 7, 8, 4, 8, 10]. Now, I need to reconstruct a vector that is the same size as the "dataset" vector, and that contains the values of dataset2 after computation and also contains nan at their original location as:
dataset3 = [2, 5, 7, nan, 8, 4, nan, 8, 10]
I'm stuck to perform the last step. Any help would be appreciated.
Best,
Guillaume

请先登录，再回答此问题。

采纳的回答

Bruno Luong
Bruno Luong 2024-2-1
编辑：Bruno Luong 2024-2-1
Ran in:
After computing dataset2
dataset = [1, 2, 3, nan, 4, 5, nan, 6, 7];
% ...
dataset2 = [2, 5, 7, 8, 4, 8, 10];
do this:
dataset3 = dataset;
dataset3(~isnan(dataset3)) = dataset2
dataset3 = 1×9
2 5 7 NaN 8 4 NaN 8 10

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Data Preprocessing 的更多信息

标签

产品


版本

R2023b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by