How to improve my code for getting the output in the picture?

Question

Pijush 2017-12-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/372156-how-to-improve-my-code-for-getting-the-output-in-the-picture

评论： Star Strider 2017-12-10

采纳的回答： Star Strider

在 MATLAB Online 中打开

I want a output similar to this

the code I wrote is

R=1.09677*10^7;
p=1;
n=2;
Z=1
for n= 2:9
n=n+1;
k=R*Z^2*[1/(p^2)-1/(n^2)];
lamda=1/k
y=linspace(0,7*10^-9,20)
plot(lamda,y)
hold on
daspect([1,1,1])
endfor

here i am getting output as groups of points since i wrote plot(lamda,y)

what can i do to get a line instead of group of points
how to change the background to black
is there any way to change the colour of the line (plot) according to the wavelength
can we change the thickness?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Star Strider 2017-12-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/372156-how-to-improve-my-code-for-getting-the-output-in-the-picture#answer_295546

在 MATLAB Online 中打开

Try this:

R=1.09677E+7;
p=1;
n=2;
Z=1;
for n= 2:9
    n=n+1;
    k=R*Z^2*[1/(p^2)-1/(n^2)];
    lamda=1/k;
    y=linspace(0,7E-9,20);
    plot(lamda*ones(size(y)),y)
    hold on
    daspect([1,1,1])
end
set(gca, 'Color','k')

2 个评论
显示无隐藏无

Pijush 2017-12-10

this is great. can we somehow change the colour of line too and yeah can we make the lines appear a little thicker?

Star Strider 2017-12-10

在 MATLAB Online 中打开

Try this:

R=1.09677E+7;
p=1;
n=2;
Z=1;
cm = colormap(jet(9));
for n= 2:9
    k=R*Z^2*[1/(p^2)-1/(n^2)];
    lamda=1/k;
    y=linspace(0,7E-9,20);
    plot(lamda*ones(size(y)),y, 'Color',cm(n,:), 'LineWidth',2)
    hold on
end
daspect([1,1,1])
axis([xlim    0  max(y)])
set(gca, 'Color','k')