Log log plot

11 vues (au cours des 30 derniers jours)
Marin
Marin le 17 Jan 2012
I have a set of data wich I want to plot in a log scale, not with the base 10, but with the base 2. How can I do that?

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Grzegorz Knor
Grzegorz Knor le 17 Jan 2012
Try this code:
plot(log2(rand(100,1)*128))
ytick = get(gca, 'YTick')
str = cellstr( num2str(ytick(:),'2^{%d}') )
format_ticks(gca,' ',str)
format_ticks function you can download from:
http://www.mathworks.com/matlabcentral/fileexchange/15986

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C.J. Harris
C.J. Harris le 17 Jan 2012
See:
doc loglog
  2 commentaires
Marin
Marin le 17 Jan 2012
yeah, I did that, severaltimes, but I haven't found the solution there. it just doesn't say anything about changing the log base. am I missing it maybe?
C.J. Harris
C.J. Harris le 17 Jan 2012
log10/log2 is a constant, so can't you simply modify the axis labels?

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