Selecting a portion of the tables

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BN
BN el 16 de En. de 2020
Comentada: Adam Danz el 16 de En. de 2020
I have C.mat which includes 125 tables. I need to list only the first row of each 125 tables and put them under each other. I want only station_name, lat, and lon columns.
something like this:
station_name lat lon
Abadan 30.37 48.21
Abadeh 31.19 52.61
Abali 35.75 51.88
... ... ...
I was attached C.mat for you.

Respuesta aceptada

Adam Danz
Adam Danz el 16 de En. de 2020
% extract row 1 of each table stored in cell array C
firstRows = cellfun(@(m)m(1,:),C,'UniformOutput',false).';
% Vertically concatenate the first-rows into new table
T = vertcat(firstRows{:});
  2 comentarios
BN
BN el 16 de En. de 2020
Thank you. I didn't know that. Then I simply use this to remove unwanted columns:
T = removevars(T,{'station_id','region_id', 'station_elevation', 'data', 'tmax_m', 'tmin_m', 'rrr24', 'tm_m'});
Adam Danz
Adam Danz el 16 de En. de 2020
Or, if you know the column numbers and you know that all tables have the same column order, you could specify a vector of column numbers here
firstRows = cellfun(@(m)m(1,COLUMN_NUMBERS),C,'UniformOutput',false).';
% ^^^^^^^^^^^^^^

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