How to plot datetime in garfh?

1 次查看（过去 30 天）
Gili Kurtser
Gili Kurtser 2019-10-19
回答： Peter Perkins 2019-10-30
hello,
I have a grafh that looks like this.
Insted of the numbers in the X-axis I have a list of dates in the format ot datetime (DD/MM/YYYY)
this list is taken from a table.
I want to name the X-axis by the Dates (for exapmle 1=(datelist(1)) and so on...
how can I do this?
I am Using the contourf function to plot.
Thank you

请先登录，再回答此问题。

回答（2 个）

Payas Bahade
Payas Bahade 2019-10-22
Hi Gili,
Function ‘xticklabels’ can be used to change the x-axis labels. For that labels needs to be specified as a string array eg. {‘dd/mm/yyyy’,‘dd/mm/yyyy’}. If your list of dates is not in string array format, you can use function ‘char’ to convert your list into string array.
Following sample code illustrates use of ‘xticklabels’:
A={'22/01/2019','23/01/2019','24/01/2019','25/01/2019','26/01/2019'};% string array of dates
x=[1 2 3 4 5];% x-axis data
y=[4 7 11 8 16];% y-axis data
plot(x,y); % plotting x&y
xticks([1 2 3 4 5]); % specifying x-axis data whose labels needs to be displayed
xticklabels(A);% changing x-axis labels to dates stored in variable ‘A’
For more details please refer to the following documentation of ‘xticklabels’: https://www.mathworks.com/help/matlab/ref/xticklabels.html?s_tid=doc_ta#bvaeark-1
HTH!
Peter Perkins
Peter Perkins 2019-10-30
Gili, you say datetime and table, so I'm going to assume you are using those datatypes. contour does not currently support datetimes, but it should be straight-forward to use an integer vector to define that axis of the mesh, and then use something like Payas' suggestion, using
timestamps = string(myTable.MyTimes)
as the text tick labels.

类别

在 Help Center 和 File Exchange 中查找有关 Dates and Time 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