First of all thank you for reading my question.
I am trying to import data from a file with following format into Matlab:
#Text
#Text: Number
...
#Text: Number
Set1:
1 2
3 4
Set2:
5 6
7 8
...
I would like to get those numbers into two matrices of the form:
(1 5
3 7)
and
(2 6
4 8)
I started by only building the first of those two matrices.
Winkel = 15;
xp = 30;
M = readtable('Ebene_1.txt')
M([1:4],:) = [];
M(:,3) = [];
for i=0:Winkel-1
A = table2array(M((2+i*31:31+i*31),1))
end
But this solution only gave me cell arrays which I could not transform into normal vectors.
I also tried to use the importdata
command, but could not find a way to get this to work either. I know there are many other questions similar to mine, but I could not find one where all the data were in a single column. Also, there are many Matlab-commands for importing data into Matlab and I am not sure which would be the best.
First time asking such a question online so feel free to ask me for more details.
You can import the data you provided in your sample using readtable, however because of the format of your file you will need to tweak the function a bit.
You can use detectImportOptions to tell the function how to import the data.
%Detect import options for your text file.
opts = detectImportOptions('Ebene_1.txt')
%Specify variable names for your table.
opts.VariableNames = {'Text','Number'};
%Ignore last column of your text file as it does not contain data you are interested in.
opts.ExtraColumnsRule = 'ignore';
%You can confirm that the function has successfully identified that the data is numeric by inspecting the VariableTypes property.
%opts.VariableTypes
%Read your text file with detectImportOptions.
M = readtable('Ebene_1.txt',opts)
Now that you have table M
, simply apply basic Matlab operations to obtain the matrices as you specified.
%Find numerical values in Text and Number variables. Ignore NaN values.
A = M.Text(~isnan(M.Text));
B = M.Number(~isnan(M.Number));
%Build matrices.
A = [A(1:2:end)';A(2:2:end)']
B = [B(1:2:end)';B(2:2:end)']
Output:
A =
1 5
3 7
B =
2 6
4 8