Plot two cell strings

Wei
2013 12 9
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更新时间：2013 12 9
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Here is my code, I want to plot the B as the X-axis and C as the Y-axis in one plot. At the same time, show the time value of B on the X-axis. I have tried different ways but no success achieved. Could anyone please help me with this problem?
Thanks
A=dataset('file','xxx.csv','delimiter',',','ReadVarName','off');
rows=size(A,1);
FormatOut=13;
for i=1:2:rows-1
B{(i+1)/2}=datestr(str2double(A{i+1,3}),13);
C{(i+1)/2}=str2double(A{i+1,7});
end

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Walter Roberson
Walter Roberson 2013-12-9

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B = str2double( A(1:2:end, 3) );
C = str2double( A(1:2:end, 7) );
plot(B, C);
datetick('X', 13);

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