table with NaNs into separate cells

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puccapearl
puccapearl 2024-4-24
评论： Voss 2024-4-25
I have a table (M) with 4 columns (columns named X, Y, Z,K) , there is a break between the data that loads as NaN.
I want place each data chunk into cells with all 4 columns (X, Y, Z,K).
Thank you!

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Voss
Voss 2024-4-24
Ran in:
% making a table with some all-NaN rows:
Var = randi(100,12,4);
Var([3 9],:) = NaN;
M = array2table(Var)
M = 12x4 table
Var1 Var2 Var3 Var4 ____ ____ ____ ____ 7 12 6 2 80 39 44 44 NaN NaN NaN NaN 48 78 45 83 3 97 37 62 35 55 21 4 37 44 22 79 85 95 92 85 NaN NaN NaN NaN 98 21 58 64 13 57 8 58 96 89 36 89
% split the table on the all-NaN rows into a cell array of tables:
idx = find(all(isnan(M{:,:}),2));
s_idx = [1; idx+1];
e_idx = [idx-1; size(M,1)];
result = arrayfun(@(s,e)M(s:e,:),s_idx,e_idx,'UniformOutput',false)
result = 3x1 cell array
{2x4 table} {5x4 table} {3x4 table}
celldisp(result)
result{1} = Var1 Var2 Var3 Var4 ____ ____ ____ ____ 7 12 6 2 80 39 44 44 result{2} = Var1 Var2 Var3 Var4 ____ ____ ____ ____ 48 78 45 83 3 97 37 62 35 55 21 4 37 44 22 79 85 95 92 85 result{3} = Var1 Var2 Var3 Var4 ____ ____ ____ ____ 98 21 58 64 13 57 8 58 96 89 36 89
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