Is possible to do an one line plot for structure array with different vector sizes

Hello there,

First of all I am using R2020a

I usually organize my data input in a structure array and then is fairly easy to plot if all I have are integers/doubles by simply doing a

plot(data.x, data.y)

with data being something like (in parenthesis is the type of the variable)

data = 

  1×5 struct array with fields:

    reference (str)
    x (integer)
    y (double)
    w (double)
    z (double)
    l (double)

Now if I want to plot a data with the following format

data = 

  1×5 struct array with fields:

    reference (str)
    x (vector of integers)
    y (vector of doubles)
    w (double)
    z (double)
    l (double)

where the vector can alternate between 1x3 to 1x8, with length(data(i).x) = length(data(i).y).

I know I could create a for loop having

for i = 1:length(data)
    plot(data(i).x, data(i).y)
end

But I was wondering if there was a way to do this in one line and if there is, how.

Thanks!

[Stephen23]

Your first example does not make sense. Given that structure array

data = 
  1×5 struct array with fields
    x (integer)
    y (double)
...

and then calling

plot(data.x, data.y)

is exactly equivalent to

plot(data(1).x, data(2).x,... data(5).x, data(1).y, data(2).y,... data(5).y)

which is unlikely to be a very useful plot.

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

Answer 1

[Mehmed Saad]

1- The long method

dc = struct2cell(data);
x = squeeze(dc(1,1,:));% as x is the 1st field
y = squeeze(dc(2,1,:));% as y is the 2nd field
figure,hold on,cellfun(@plot,x',y')

2-The short method(1 line)

figure,hold on,cellfun(@plot,{data.x},{data.y})