plot of a string vector vs numeric vector

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Hassan 2011-6-24

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编辑： Stephen23 2017-4-13

I wonder how to make a plot as X-axis is a text vector. I get an error when I run the folloing code (??? Error using ==> plot Invalid first data argument). I apperciate your help.

y=[1 2 3 4 5 6]

x=['a','b','c','d','e','f']

plot(x,y)

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Stephen23 2017-4-13

编辑：Stephen23 2017-4-13

在 MATLAB Online 中打开

Note that in MATLAB [] is a concatenation operator and not a list operator, so this code:

x=['a','b','c','d','e','f']

is equivalent to this:

x = 'abcdef'

You can use a cell array or the string class to store strings as separate elements of an array.

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采纳的回答

Matt Fig 2011-6-24

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在 MATLAB Online 中打开

y=[1 2 3 4 5 6]
x=['a','b','c','d','e','f']
plot(y)
set(gca,'xticklabel',x.')

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Hassan 2011-6-24

thanks a lot Matt.

Christine Abou Nasr 2017-4-13

Hello! and if I want to select just a part of the x table, how can I do? For example, I would like to plot x values 'b' to 'e'. Thank you!

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