plot and ignore certain values
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I have a vector I need to plot that contains numerics gathered from a data acquisition board collecting at 1 hz (1 point / sec).
any time signal is lost, a placeholder "-1" value is used in that cell and I need to plot this vector but not have it plot the "-1"s
is the plot function capable of such a task? or do I have to remove all the "-1"s first?
1 件のコメント
Nathaniel Menefee
2017 年 3 月 10 日
So i want to do that same thing but i want to do it with 2 different plots. is there any way to do this.
採用された回答
Wayne King
2012 年 4 月 25 日
You can set those values to NaN
x(x == -1) = NaN;
plot(x)
They will show up as gaps in your plot.
2 件のコメント
その他の回答 (1 件)
Wayne King
2012 年 4 月 24 日
You can just plot x for x~= -1 or did you mean that the character array "-1" is entered? Not sure what you mean by the " ".
x = randi([-1 4],20,1);
plot(x(x~= -1))
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