How can I change 'y axis' into 'Probability', not the 'number' when I use 'hist(variable)' ?

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wenhao yang
wenhao yang 2021-3-2
评论： Walter Roberson 2021-3-2
Figure 1 is what I get from hist(variable);
Figure 2 is what I want to get;
Figure 3 is what I want to to get as well.
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Walter Roberson
Walter Roberson 2021-3-2
https://www.mathworks.com/help/stats/histfit.html
h = histfit(___) returns a vector of handles h, where h(1) is the handle to the histogram and h(2) is the handle to the density curve.
So you could set the 'Normalization' option of h(1) to change how the axes got labeled. It is possible that you will need to rescale the curve on h(2) as well.

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回答（1 个）

KALYAN ACHARJYA
KALYAN ACHARJYA 2021-3-2
编辑：KALYAN ACHARJYA 2021-3-2
Is there any sense? Let's suppose I have the following array
> data
data =
4 3 5 3 5 5 3 4 3 5 2 5 2 1 4 5 5 2 5 3
Now the bins and counts as follows
bins: 1 2 3 4 5
counts: 1 3 5 3 8
If you plot the hist of the data, no issue
Once you wish to reverse bar plot, then issue arrise with random data, which is not unique (It suppose to be unique for variable data). However you can get the line plot in this case
[counts,bins]=hist(data);
plot(counts,bins);
Counts data in the variable axes have two issue.
  • Non unique data
  • No linear order (Incresing or Decreasing)
Although you can do other ways to plot the histogram appearance, like barh etc.
Hope it Helps! :)

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