Plotting a function with polyfit and a for loop

2 次查看（过去 30 天）
Ryan
Ryan 2013-3-5
I need to use polyfit and a for loop to create a plot in Matlab. However, here's the catch: The values that need to be graphed need to be taken out from an inputted matrix. For example: the matrix is: [1 2 3; 4 5 6; 7 8 9; 10 11 12]. But I only need to graph the first two rows as such: the first row are the x values and the second row are the y values. And then create another graph with the third row being the x values, and the fourth row being the y values. But this also has to work for an unlimited number of inputs or rows. Any help is appreciated!

请先登录，再回答此问题。

采纳的回答

the cyclist
the cyclist 2013-3-5
Here is one way
M = [1 2 3; 4 5 6; 7 8 9; 10 11 12];
nrows = size(M,1);
for nr = 1:2:nrows
figure
x = M(nr, :);
y = M(nr+1,:);
plot(x,y)
end
  2 个评论
Ryan
Ryan 2013-3-5
Thanks! Worked great. All i had to add was a polyfit function and then plot that.
the cyclist
the cyclist 2013-3-5
Please "accept" this answer, which may help people seeking similar answers in the future.

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 Interpolation 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