清空筛选条件
清空筛选条件

Insert NaN into specific values

1 次查看（过去 30 天）
Augusto Gabriel da Costa Pereira
评论： Augusto Gabriel da Costa Pereira 2023-1-7
I use this code to insert all the lines in column 4 the numbers equal to 0 equal to NaN, but nothing happens.
That is, I want to insert NaN in all numbers equal to 0 of all rows in column 4.
Does anyone have an idea?
s=load('spi_dca.mat');
spi_dca = s.spi_dca;
mask=spi_dca(:,4)==0;
spi_dca(mask,4)=spi_dca(mask,4)==NaN;

请先登录，再回答此问题。

采纳的回答

Arif Hoq
Arif Hoq 2023-1-7
try this:
s=load('spi_dca.mat');
spi_dca = s.spi_dca;
col4=spi_dca(:,4);
col4(col4==0)=NaN;
output=[spi_dca(:,[1 2 3]),col4];

更多回答（1 个）

Voss
Voss 2023-1-7
s=load('spi_dca.mat');
spi_dca = s.spi_dca;
mask=spi_dca(:,4)==0;
spi_dca(mask,4)=NaN;

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by