MATLAB Answers

loading a file .mat problem

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mado
mado on 21 Apr 2014
Commented: mausam on 22 Apr 2014
when i load a file.mat and i tried to open it , matlab hang out and gives this message
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
at javax.swing.table.DefaultTableColumnModel.getSelectedColumns(Unknown Source)
at javax.swing.JTable.getSelectedColumns(Unknown Source)
at com.mathworks.widgets.spreadsheet.SpreadsheetTable.areOnlyEntireRowsSelected(SpreadsheetTable.java:1115)
atcom.mathworks.widgets.spreadsheet.SpreadsheetTable.access$2200(SpreadsheetTable.java:65)
atcom.mathworks.widgets.spreadsheet.SpreadsheetTable$UnamInsertDeleteAction.reexamineActionEnabled(SpreadsheetTable.java:1724)
atcom.mathworks.widgets.spreadsheet.SpreadsheetTable.reexamineRegionAmbiguities(SpreadsheetTable.java:651)
atcom.mathworks.widgets.spreadsheet.SpreadsheetTable.access$900(SpreadsheetTable.java:65)
atcom.mathworks.widgets.spreadsheet.SpreadsheetTable$RowSelectionListener.valueChanged(SpreadsheetTable.java:640)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.changeSelection(Unknown Source)
at javax.swing.DefaultListSelectionModel.changeSelection(Unknown Source)
at javax.swing.DefaultListSelectionModel.removeSelectionIntervalImpl(Unknown Source)
at javax.swing.DefaultListSelectionModel.clearSelection(Unknown Source)
>>

Answers (3)

mausam
mausam on 21 Apr 2014
your data may be too large. try 'whos' to get variables inside it and then try loading it separately.
  3 Comments
mausam
mausam on 22 Apr 2014
i was assuming your data is in "D:\foldername"

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Image Analyst
Image Analyst on 21 Apr 2014
2 by 425,041 is not that large. 6.8 megabytes for a double - pretty small actually. Were you running a remote session with someone at a different computer at all (running VNC, Webex, Lync, TeamCenter, etc.)? I've seen weird java errors sometimes when sharing my screen with others.

Star Strider
Star Strider on 21 Apr 2014
Please post your relevant code that causes the error.
When you use the load function for a ‘.mat’ file, load adds the variables in the file to your workspace. You do not need to ‘open’ anything after you load it. The variables in it are there in your workspace for you to work with.

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