> I believe that the issue may be that you don?t have an Excel converter which
> xlsread can use. I?m not sure (1) what libraries are acceptable, and (2)
> whether we have them in Fink or not.
>
> --
> Alexander Hansen, Ph.D.
> Fink User Liaison
Good Morning Alexander,
After much searching and trying, I finally found the solution. You were
correct: an additional library or more precisely, Java class library is
required as the interface for importing the *.xls files. I found a solution by
calling the POI Java-based class library <https://poi.apache.org/>. Following
is an example:
octave:3> chk_spreadsheet_support
ans = 0
octave:4> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
- empty -
$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home
octave:8> javaaddpath
('/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home')
$ octave
GNU Octave, version 3.8.2
Copyright (C) 2014 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. For details, type 'warranty'.
Octave was configured for "x86_64-apple-darwin".
Additional information about Octave is available at http://www.octave.org.
Please contribute if you find this software useful.
For more information, visit http://www.octave.org/get-involved.html
Read http://www.octave.org/bugs.html to learn how to submit bug reports.
For information about changes from previous versions, type 'news'.
octave:1> cd ~/Documents/MATLAB
octave:2> chk_spreadsheet_support
error: 'chk_spreadsheet_support' undefined near line 1 column 1
octave:2> pkg load all
warning: function /sw/share/octave/3.8.2/packages/specfun-1.1.0/ellipke.m
shadows a core library function
warning: function /sw/share/octave/3.8.2/packages/specfun-1.1.0/erfcinv.m
shadows a built-in function
warning: function /sw/share/octave/3.8.2/packages/specfun-1.1.0/expint.m
shadows a core library function
warning: function
/sw/lib/octave/3.8.2/packages/specfun-1.1.0/x86_64-apple-darwin-api-v49+/ellipj.oct
shadows a built-in function
octave:3> chk_spreadsheet_support
ans = 0
octave:4> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
- empty -
octave:5> setenv
("JAVA_HOME","/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home")
octave:6> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
- empty -
octave:7> javaaddpath
('/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home')
octave:8> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home
octave:9> M1 = xlsopen ('MATRIX1.xls')
Detected XLS interfaces: None.
warning: xlsopen.m: no support for spreadsheet I/O
M1 = [](0x0)
octave:10> javaaddpath (‘~/Desktop/poi-3.14')
octave:11> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home
~/Desktop/poi-3.14
octave:15> chk_spreadsheet_support
ans = 0
octave:16> javaaddpath(‘~/Desktop/poi-3.14/poi-3.14-20160307.jar')
octave:17> chk_spreadsheet_support
ans = 0
octave:18> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home
~/Desktop/poi-3.14
~/Desktop/poi-3.14/poi-3.14-20160307.jar
octave:19> javaaddpath(‘~/Desktop/poi-3.14/poi-ooxml-3.14-20160307.jar')
octave:20> javaclasspath
STATIC JAVA PATH
- empty -
DYNAMIC JAVA PATH
/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home
~/Desktop/poi-3.14
~/Desktop/poi-3.14/poi-3.14-20160307.jar
~/Desktop/poi-3.14/poi-ooxml-3.14-20160307.jar
octave:21> chk_spreadsheet_support
ans = 2
octave:22> M1 = xlsopen('MATRIX1.xls')
Detected XLS interfaces: POI*; (* = default interface)
M1 =
scalar structure containing the fields:
xtype = POI
app =
<Java object: java.io.FileInputStream>
filename = MATRIX1.xls
workbook =
<Java object: org.apache.poi.hssf.usermodel.HSSFWorkbook>
changed = 0
limits = [](0x0)
octave:24> chk_spreadsheet_support
ans = 2
octave:25> M2 = xlsread('MATRIX2.xls')
M2 =
3.50000
0.00000
NaN
0.50000
NaN
NaN
2.50000
NaN
NaN
0.00000
3.00000
NaN
0.00000
3.00000
NaN
2.50000
1.00000
1.00000
4.00000
2.50000
2.50000
octave:26> M1 = xlsread('MATRIX1.xls')
M1 =
4.00000
0.00000
NaN
3.00000
4.00000
NaN
3.00000
3.50000
NaN
3.00000
3.50000
3.00000
3.50000
4.00000
NaN
3.00000
3.50000
3.50000
NaN
4.00000
octave:27> size(M1)
ans =
1603 1
octave:28> size(M2)
ans =
1603 1
octave:29> length(M1)
ans = 1603
octave:30> length(M2)
ans = 1603
Have a great weekend,
Ebrahim------------------------------------------------------------------------------
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