Set string labels for a plot with multiple lines

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Hi,
I create a plot with 3 lines with xTickLabels set as follows:
A=[1 2 3 8]; B=[2 4 5 6];
C=[5 7 11 12];
xaxis = [1:4];
semilogy(xaxis,A,'o-',xaxis,B,'o-',xaxis,C,'o-')
xlabel={'sample1','sample2','sample3','sample4'};
set(gca,'xticklabel',xlabel)
I want to mark the 4 points on the xaxis with the strings sample1,sample2,sample3 and sample4.
The above code is not quite doing that. Any suggestions on how to fix this?

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 19 Apr 2016
Edited: Azzi Abdelmalek on 19 Apr 2016
A=[1 2 3 8]; B=[2 4 5 6];
C=[5 7 11 12];
xaxis = [1:4];
semilogy(xaxis,A,'o-',xaxis,B,'o-',xaxis,C,'o-')
xlabel1={'sample1','sample2','sample3','sample4'};
xt=xlim
set(gca,'xtick',linspace(xt(1),xt(2),4))
set(gca,'xticklabel',xlabel1)
  2 Comments
Azzi Abdelmalek
Azzi Abdelmalek on 19 Apr 2016
To generate xlabel1, you can use
xlabel1=genvarname(repmat({'sample'},1,4),'sample')
Osh
Osh on 19 Apr 2016
Edited: Osh on 19 Apr 2016
Thanks, this worked! Can you pls explain what happened in line to fix my problem?
set(gca,'xtick',linspace(xt(1),xt(2),4))?
What will happen if the plot is loglog?

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