IO package: Difference between revisions

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24 bytes added ,  15 June 2012
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=== Matlab compatibility ===
=== Matlab compatibility ===


'''xlsread''', '''xlswrite''' and '''xlsfinfo''' are for the most part Matlab-compatible. Some small differences are mentioned below. When using the Java interfaces octave supplies some formula manipulation support.
'''xlsread''', '''xlswrite''' and '''xlsfinfo''' are for the most part Matlab-compatible. Some small differences are mentioned below.


* xlsread
* xlsread
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** Matlab's xlsread returns strings for cells containing date values. This makes for endless if-then-elseif-else-end constructs to catch all expected date formats. Octave returns numerical data (where 0 = 1/1/1900 – you can easily transfer them into proper octave date values yourself using e.g. datestr(), see bottom of this document for more info). For dates before 1/1/1900, Octave returns dates as text strings.
** Matlab's xlsread returns strings for cells containing date values. This makes for endless if-then-elseif-else-end constructs to catch all expected date formats. Octave returns numerical data (where 0 = 1/1/1900 – you can easily transfer them into proper octave date values yourself using e.g. datestr(), see bottom of this document for more info). For dates before 1/1/1900, Octave returns dates as text strings.
** Matlab's xlsread invokes csvread if no Excel interface is present. Octave-forge's xlsread doesn't.
** Matlab's xlsread invokes csvread if no Excel interface is present. Octave-forge's xlsread doesn't.
** Octave can read either formula results (evaluated formulas) or the formula text strings; Matlab can't.


* xlswrite
* xlswrite
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