How to plot some xtickslabel that correspond to y data?

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Arthur
Arthur 2012-12-12
Hello!
I've read a lot of answers about xticklabel and datetick, but i'm very confusing yet.
I have two vectors of 30 points.
y = 30 points
x = 30 points type date string (i've used datestr() from a datenum() number) (HH:MM:SS.FFF). See like this:
' 06:22:19.041'
' 06:22:19.048'
' 06:22:19.050'
' 06:22:19.055' ...
I used the plot function only for the y data:
plot(y);
The x data on the graphic was = 1...5...10...15...20...25...30. (7 numbers!)
So, i changed the xtickslabels:
set(gca, 'XTickLabel', x);
And the xtickslabels changed for the only the first 7 numbers of my x vector.
I need plot few points, as i did, but the points on xticks have to correspond to the y data.
Thanks. Sorry about the language

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回答（1 个）

Walter Roberson
Walter Roberson 2012-12-12
set(gca, 'XTick', 1:length(x), 'XTickLabel', x);
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Arthur
Arthur 2012-12-13
I did some tests here. I realy thank your help.
In some plots, the seconds, miliseconds and the minutes are changing. i want to plot the x axis in MM:SS.FFF format. So guess only the strings will do it to me.
Can you plot on x axis a string vector 'dateticks' and erase some data to improve the visualization? Replacing some data to a blank ' '?
This graphics will be a part of an research article and the reviser suggested that i should do in this way... :s. I'm sending here the two complete vectors to plot.
K>> v_fase_a_evento_agreg{1,1}
ans =
99.1
99.1
99.2
99.1
99
99.1
99.1
99.1
99.1
99.2
99.1
99.1
99
98.4
98.5
98.4
98.2
99.1
99.4
98.6
98.5
99
99.1
98.6
98.4
98.9
99.1
98.8
98.5
99
K>> t_event_agreg{1,1}
ans =
' 06:22:19.041'
' 06:22:19.046'
' 06:22:19.050'
' 06:22:19.054'
' 06:22:19.058'
' 06:22:19.062'
' 06:22:19.066'
' 06:22:19.071'
' 06:22:19.075'
' 06:22:19.079'
' 06:22:19.083'
' 06:22:19.087'
' 06:22:19.088'
' 06:22:19.096'
' 06:22:19.097'
' 06:22:19.104'
' 06:22:19.108'
' 06:22:19.112'
' 06:22:19.116'
' 06:22:19.121'
' 06:22:19.125'
' 06:22:19.129'
' 06:22:19.133'
' 06:22:19.137'
' 06:22:19.141'
' 06:22:19.145'
' 06:22:19.150'
' 06:22:19.154'
' 06:22:19.158'
' 06:22:19.162'
Arthur
Arthur 2012-12-13
Walter,
I found a solution for now, but a manual solution. plot(y); f=datestr(t_event_agreg{1,1},'HH:MM:SS.FFF'); set(gca,'XTick',1:length(f),'XTickLabel', f);
So i went to figure properties /Ticks and erase some LABELS keeping the locations. It is my solution for only one graphic.
after, I used this command to check:
get(gca,'Xticklabel') ans =
'06:22:19.041'
''
''
''
'06:22:19.058'
''
''
''
''
'06:22:19.079'
''
''
''
''
'06:22:19.097'
''
''
''
''
'06:22:19.121'
''
''
''
''
'06:22:19.141'
''
''
''
''
'06:22:19.162'
How can i modify the orginal vector of time e fill it with 'blanks'???

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