[Octave-bug-tracker] [bug #49546] importdata() fails for textfiles with missing values

[Avinoam Kalma]

Follow-up Comment #1, bug #49546 (project octave):

This problem is caused probably by changeset
[http://hg.savannah.gnu.org/hgweb/octave/rev/a93887d7f0da] which
fix a bug in dlmread to Use EmptyValue option correctly.

Now that  EmptyValue is used correctly, the lines


  if (delimiter == " ")
    output.data = dlmread (fname, "", header_rows, header_cols,
                           "emptyvalue", NA);
  else
    output.data = dlmread (fname, delimiter, header_rows, header_cols,
                           "emptyvalue", NA);


cause NA to be written in the empty place, and that causes the error.

The NA can be replaced by 0, and then you get
1 2
1 0

or by NaN, and then you get
1 2
1 NaN

but you do not get an error.


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