How to scatter plot a cell array
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I have a 1x18 cell array like the picture. The indices of the cells (1:18) represent the depths of my system. And each depth includes corresponding amount of data (for example, the 1st depth has 529 data). Now I want to plot these data as a function of depth. How can I achieve that? Should I use scatter function? But scatter function requires the length of x, y dimension to be same.
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The cell array is 18x1, not 1x18.
"I want to plot these data as a function of depth"
Does that mean that you want there to be 18 values along the x axis (1:18) and for each x value, you want there to be a vertical stack of dots along the y axis? For example, at x=1, there would be 529 values of y. Is that your goal?
If you want lines that connect values between depths, you'll have to explain how 28 values at x=18 correspond to 93 values at x=17 etc.
Adam Danz
2020-2-11
Weihao Fan's answer moved here as a comment.
Yeah that is my goal. And what do you mean by explaining the correspondence between depths
" what do you mean by explaining the correspondence between depths"
As you can see in the demo in my answer, each stack of dots has a different number of dots. So, if you expected to see trend lines connecting the dots between x values, you'd need to explain how those values are related since there is not a 1:1 mapping.
采纳的回答
Adam Danz
2020-2-11
Input: data, an 18x1 cell array where each element is a 1xn double precision vector varying in size.
Output: a figure with x values 1:18 and y values defined by the elements of data.
% Create data that loosly match OP's description
data = arrayfun(@(i){rand(1,i)},randi(500,18,1)+27);
% Define Depths (x values_
depths = 1:numel(data);
% Create figure and plot each element of data
clf()
hold on % important
arrayfun(@(i)plot(depths(i),data{i},'o'),1:numel(depths));
% Specify the color here -----------^
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