Hi, is it present a native matlab command able to verify if a matrix, or an array, given as input is only composed by zero-values? Often i use the find function with the condition matrix == 0 and then i check if the results of find function is equal to the length of the input matrix or array. Thank you!
MATLAB: Matrix or array composed by zero-values
arrayfindmatrixzero values
Related Solutions
cellArray is your cell array.
threshold is the percent of 0-values per column that defines "several".
See inline comments for details.
% Define a threshold that defines "several".
% For example. 0.5 means 50% of the values in a column is 0 (ignoring 1st row)
% 1.0 means 100% of the values in a column is 0 (ignoring 1st row)
threshold = 0.5;% Compute the percent of 0-values per column in rows 2:end (pZero)
isZero = cellfun(@(x) isnumeric(x) && x==0, cellArray(2:end,:)); % <--- UPDATED FROM ORIGINAL ANSWER
pZero = mean(isZero,1); % Remove columns with "several" zeros
cellArray(:,pZero >= threshold) = [];If you want to retain the original cell array, copy it to a different variable before the final line.
Change the color of the bar graph, use the different face color and edge color
as following
y=[75 91 105 123.5 0 150 179 203 226 249 281.5];bar(y,'r','FaceColor',[0 .5 .5],'EdgeColor',[0 .9 .9],'LineWidth',5)You can do some sorts of ways, change values as per your requirements-
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