How can I skip empty cells when averaging during a function?

4 次查看（过去 30 天）
lil brain
lil brain 2022-6-3
回答： Chunru 2022-6-3
Ran in:
Hi,
I have a function in which I average the values of the doubles within each cell of a cell array.
for i = 1:length(explained_balls)
explained_pc1_avg_part_x_phase(1,2) = mean(explained_balls{i}(1,:));
end
Unrecognized function or variable 'explained_balls'.
Because I have a cell which is empty I get the error
Index in position 1 exceeds array bounds.
I was wondering if I can write the functiion so that it skips the empty cell and doesnt throw the error? Help is greatly appreciated.

请先登录，再回答此问题。

回答（1 个）

Chunru
Chunru 2022-6-3
Ran in:
load explained_balls
whos
Name Size Bytes Class Attributes ans 1x44 88 char cmdout 1x33 66 char explained_balls 1x15 3912 cell
for i = 1:length(explained_balls)
%explained_balls{i}
if isempty(explained_balls{i})
explained_pc1_avg_part_x_phase(i) = NaN; % or 0
else
% explained_pc1_avg_part_x_phase(1,2) = mean(explained_balls{i}(1,:));
% The above find average of the 1st row, which is a single number.
% Check it out!!!
explained_pc1_avg_part_x_phase(i) = mean(explained_balls{i});
end
end
explained_balls
explained_balls = 1×15 cell array
{21×1 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double} {0×0 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double} {21×1 double}
explained_pc1_avg_part_x_phase
explained_pc1_avg_part_x_phase = 1×15
4.7619 4.7619 4.7619 4.7619 4.7619 4.7619 4.7619 4.7619 NaN 4.7619 4.7619 4.7619 4.7619 4.7619 4.7619

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by