how to convert table to matrix?

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satya deep
satya deep 2018-2-5
编辑： MathWorks Support Team 2024-11-13，6:27
for minimization process Boolean function by using binary decision diagram.

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Walter Roberson
Walter Roberson 2024-11-13，0:00
编辑：MathWorks Support Team 2024-11-13，6:27
table2array() . Or, if the table is all numeric, you can give the table name and then {:, :} such as mytable{:,:}
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satya deep
satya deep 2018-2-7
I want the table to matrix sir.
Walter Roberson
Walter Roberson 2018-2-7
编辑：Walter Roberson 2018-2-7
The code I posted does that. Table objects are always 2 dimensional in MATLAB and for two dimensions the terms array and matrix are the same thing.

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FAS
FAS 2018-11-20
Suppose your table is X.
X = X{:,:}
MathWorks Support Team
编辑：MathWorks Support Team 2020-9-2
To convert a table to a matrix, use the “table2array” function. (A matrix is a 2-D array.)
As an alternative, you can convert a table to an array by using the syntax “T{:,:}”, where “T” is the table. This syntax is the equivalent of “table2array”.
All variables in the table must have sizes and data types that allow them to be horizontally concatenated. For example, if all variables in “T” are numeric, then “table2array” returns a numeric array.
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Arsalan Aftab Sayed
Arsalan Aftab Sayed 2020-12-16
I tried both table2array and “T{:,:}” but it changes the values inside the table from 0.7 to 1. Is there a way I can keep the original values, I tried using double datatype but it doesn't work
Walter Roberson
Walter Roberson 2020-12-16
table2array() converting 0.7 to 1 could happen if the table is mixed data type including at least one integer data type such as uint8 . Please check
unique( varfun(@class, T, 'outputformat', 'cell') )

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Sulaymon Eshkabilov
Ran in:
Another alternative to convert table to matrix is to use a syntax: M=T.Var, e.g.
T = table(magic(5))
T = 5×1 table
Var1 __________________________ 17 24 1 8 15 23 5 7 14 16 4 6 13 20 22 10 12 19 21 3 11 18 25 2 9
M=T.Var1
M = 5×5
17 24 1 8 15 23 5 7 14 16 4 6 13 20 22 10 12 19 21 3 11 18 25 2 9
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David Alejandro Ramirez Cajigas
David Alejandro Ramirez Cajigas 2021-8-18
What can I do if I have N var, with random names, inside a table that imports from excel, this table can vary.
that is, the method of putting T. "name var" is not possible if I have N quantity of varials with N different names
Walter Roberson
Walter Roberson 2021-8-18
@David Alejandro Ramirez Cajigas
You can use variable indexes if the indexes are constant.
If the variable order is not constant, then you can take T.Properties.VariableNames and extract whatever subset of those you want and sort them in whatever you want. Then you can loop doing dynamic field names.
Example, selecting variables that start with "run"
names = T.Properties.VariableNames;
runvars = sort(names(startsWith(names, 'run')));
nrun = length(runvars);
for varidx = 1 : nrun
thisvarname = runvars{varidx};
thiscontent = T.(thisvarname);
stuff here
end

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Sulaymon Eshkabilov
T_mat=table2array(T);

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