Boxplot using cell array where each cell has different size

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Enrico Gambini
Enrico Gambini 2021-5-19
评论： Enrico Gambini 2021-5-20
Hello to everyone!
I would like to obtain a single graph with boxplots using a 1x40 cell array, each cell has a different number of elements (vectors of type double) and represents observations for a single year .
I would like to group the boxplots from year 1981 to 2020 in a single graph.
Hope that my question is clear, thank you!

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dpb
dpb 2021-5-19
Fill each cell with NaN to the same size vector and then convert to an array. boxplot will ignore the NaN missing value indicators.
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dpb
dpb 2021-5-19
boxplot() is written to take a double array, not cell array, so not simply, no. It's easy enough to just augment the data and the result is/will be the same.
The alternative is to add each on top of an existing axes; the code to do that would be more complex than just rounding out the existing data.

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Adam Danz
Adam Danz 2021-5-19
Ran in:
boxplotGroup from the file exchange will accept the cell array you described.
c = arrayfun(@(i){rand(randi([5,20]),1)},1:40)
c = 1×40 cell array
{18×1 double} {8×1 double} {9×1 double} {8×1 double} {16×1 double} {14×1 double} {12×1 double} {12×1 double} {13×1 double} {19×1 double} {16×1 double} {9×1 double} {18×1 double} {11×1 double} {9×1 double} {12×1 double} {16×1 double} {15×1 double} {9×1 double} {14×1 double} {10×1 double} {9×1 double} {17×1 double} {5×1 double} {20×1 double} {6×1 double} {10×1 double} {10×1 double} {8×1 double} {12×1 double} {7×1 double} {13×1 double} {10×1 double} {11×1 double} {11×1 double} {18×1 double} {17×1 double} {15×1 double} {9×1 double} {5×1 double}
years = compose('%d',1981:2020)
years = 1×40 cell array
{'1981'} {'1982'} {'1983'} {'1984'} {'1985'} {'1986'} {'1987'} {'1988'} {'1989'} {'1990'} {'1991'} {'1992'} {'1993'} {'1994'} {'1995'} {'1996'} {'1997'} {'1998'} {'1999'} {'2000'} {'2001'} {'2002'} {'2003'} {'2004'} {'2005'} {'2006'} {'2007'} {'2008'} {'2009'} {'2010'} {'2011'} {'2012'} {'2013'} {'2014'} {'2015'} {'2016'} {'2017'} {'2018'} {'2019'} {'2020'}
boxplotGroup(c, years)
xlabel('year')

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