How do I limit plotting the values from a row variable say time?

2022 6 27
1 个回答
更新时间：2022 6 28
7 次查看（30 天）

0 个投票

I want to make a plot with the time for 41665 values only. How do I achieve this?
figure('position',[50 100 1400 400])
pcolor(datenum(time),rng,zh)
datetick('x')
shading flat

请先登录，再回答此问题。

回答（1 个）

KSSV
KSSV 2022-6-27
Ran in:

0 个投票

Ran in:
Z = peaks(30) ;
x = datetime(2022,01,01):datetime(2022,01,30) ; % datetime class
y = 1:30 ;
pcolor(x,y,Z)
shading flat

3 个评论
显示 1更早的评论 隐藏 1更早的评论

Tunde Adubi
Tunde Adubi 2022-6-27
编辑：Tunde Adubi 2022-6-27
Hey, Thanks but I'm still having errors seen below.
Numeric input data must be a matrix with three or six columns, or else three, six, or seven separate numeric
arrays. You can also create datetimes from a single numeric array using the 'ConvertFrom' parameter.
How can I correct that so the X-axis of the plot should be limited at '27-Dec-2021 00:00:00'?
time1 = ncread(fname,'time');
units = ncreadatt(fname,'time','units');
year = str2num(units(15:18)); month = str2num(units(20:21));
day = str2num(units(23:24)); hr = str2num(units(26:27));
minutes = str2num(units(29:30));
test_time = datetime(year,month,day,hr,minutes,time1);
time = [time;test_time];
figure('position',[50 100 1400 400])
xtime= datetime(26:12:2021: 00:00:00):datetime(27:12:2021 : 00:00:00);
pcolor(xtime,rng,zh)
KSSV
KSSV 2022-6-28
What are dimensions of xtime, rng and zh?
Tunde Adubi
Tunde Adubi 2022-6-28
The time variable (x-axis) should be 41665x1; The rng is the Y-axis 600 x1(double); zh has no dimension as its a 2D plot, see attached figure. In the attachment, The vertical space on the RHS with an extra hour (00:00 to 01:00) is to be eliminated from time.

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Line 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