Extracting from a matrix

1 次查看（过去 30 天）
G
G 2018-10-26
编辑： Stephen23 2018-10-26
I have a 6 row 800 column matrix... How do I extract the data in row 2 only to the 600th column?

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2018-10-26
编辑：Stephen23 2018-10-26
Where A is your matrix:
B = A(2,1:600)
Basic MATLAB concepts, like how to use indexing, are explained in the introductory tutorials:
https://www.mathworks.com/help/matlab/getting-started-with-matlab.html
  2 个评论
G
G 2018-10-26
编辑：G 2018-10-26
Ok thank you. Can you help me with plotting also? I am trying to plot this: I keep getting an error about the vectors not being the same length
clear,clc
load('DATA_01_TYPE01.mat')
A = sig;
x = A(2,1:600)
t=0:200:600;
subplot(3,1,1)
plot(t,x)
Stephen23
Stephen23 2018-10-26
编辑：Stephen23 2018-10-26
x has 600 elements, whereas t has exactly five elements:
>> t = 0:200:600
t =
0 200 400 600
It is not possible to plot 600 x points against 5 t points. Perhaps you meant this:
t = 0:599

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by