How can I change the tick values on x axis?

Question

Pul 2021-12-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1606145-how-can-i-change-the-tick-values-on-x-axis

评论： Pul 2021-12-8

采纳的回答： Peter Bonavita

MODESTAMMEQ.mat

在 MATLAB Online 中打开

Hello everyone,

I would like to put the tick label on x axis every 2 years instead of every 5 years. How can I do it?

Thank you!

LD = load('MODESTAMMEQ.mat');
MODESTAMMEQ = LD.MODESTAMMEQ;
dv = regexp(MODESTAMMEQ.Jan1989, '\d*\-\w*\-\d*','match');
MODESTAMMEQ.Var1 = datetime([dv{:}], 'InputFormat',"dd-MMM-yyyy").';
x = MODESTAMMEQ.Var1;
y = MODESTAMMEQ.Var2*10*0.35;
figure
plot(x, y)
grid

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

Peter Bonavita 2021-12-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1606145-how-can-i-change-the-tick-values-on-x-axis#answer_850545

Hi Pul,

You can use xticks to specify the values where you want the ticks to appear, and xticklabels to customize the labels themselves, if you wish.

In your case, you'll specify something like xticks([0 5 10 15]), etc.

Thanks,

Peter

4 个评论
显示 2更早的评论隐藏 2更早的评论

Peter Bonavita 2021-12-8

在 MATLAB Online 中打开

Hi Pul, this should get you started.

First, check out the value of xticks from your original plot:

>> ticks = xticks
ticks = 
  1×4 datetime array
   2000   2005   2010   2015

Create a datetime array as Rik suggested:

newTicks = datetime({'2000','2002','2004','2006'},'InputFormat','u');

Use this to update the labels on the plot with xticks:

>> xticks(newTicks)

Pul 2021-12-8

在 MATLAB Online 中打开

Thank you @Peter Bonavita.

The only problem is that then I can't plot my y with the new x, because they have a different length.

newTicks = datetime({'2000','2002','2004','2006','2008','2010','2012','2014','2016','2018'},'InputFormat','u');
xticks(''2000','2002','2004','2006','2008','2010','2012','2014','2016','2018');