How to convert from excel to csv ( coma delimited ) to opened with weka 'arff file'? To convert an Excel spreadsheet to a.csv file just open the file and select the 'save as' option and you should be able to select.csv. Source(s): lapan 2 years ago.
ref: <http://slavnik.fe.uni-lj.si/markot/csv2arff/csv2arff.php?do=instructions>
CSV file can create by Excel or common text editor.
file extension '.csv'
CSV file can create by excel or common text editor.
File extension '.csv'
The cvs parser shown in figure 2.
Note: the csv parser allows the use of comma ',' or semicolon ';' to delimit the values.
ARFF is simpify of
'Attribute-Relation file format'
An input file format used by WEKA (The machine learning tool).
see also : <https://weka.wikispaces.com/ARFF><https://weka.wikispaces.com/ARFF+(stable+version)>
The converting can use both online tools and the WEKA to convert CSV file to ARFF file.
ref: <http://slavnik.fe.uni-lj.si/markot/csv2arff/csv2arff.php?do=instructions>
- CSV format is simple.
- Do you know about ARFF section format ?
- @relation
- @attribute
- @data
- @relation <relation-name>
- @attribure <attribute-name> <data-type>
- data-type : numeric or nominal
- @data
- consist of instance of data
- Declare relation name in top of file. (@relation)
- Count number of attributes from CSV and ask type of this.
- Declare type of all attributes. (@attribute)
- Put instance of data as below @data
@relation <relation-name>
@attribute <attribute-name> <attribute-type>
@attribute <attribute-name> <attribute-type>
@attribute <attribute-name> <attribute-type>
...
@data
... instance of data each record separate by comma (,) ...
- #include <stdlib.h>
- FILE *file
- fopen(<file-name>,<open-type>)
- r : read only
- w : write + create new file
- a : write + append if file that existed
- fgetc(<FILE-object>)
- fgets(<char []>,<buffer-size>,<FILE-object>)
- EOF, 'r', 'n'
- fputc('character',<FILE-object>)
- fputs('string',<FILE-object>)
- fprintf(<FILE-object>,<string-format>,[args,...])
- fclose(<FILE-object>)
1. open .csv file 'r'
2. <read> first line >> header
3. ask for attribute type each column is numeric or nominal
count attributes number
4. <close file> .csv file
[Relation / Attribute Section]
5. open .arff file 'w' <create new file>
6. <write>@relation whatever<n> //fix
..newlines..
@attribute [A] [numeric or nominal]<n>
@attribute [B] numberic<n>
@attribute ...
@attribute [E] nominal {m1,m2,m3,...}<n>
..newlines..
7. <close file>
[Data Section]
@data
..newline..
8. open .arff file 'a'
9. open .csv file 'r'
How To Convert Csv File To Excel Format
10. <read> .csv skip first line
11. <write> .arff for each data instance
data from .csv each line must change
comma (,) and semicolon (;) to space-comma-space (' , ')
12. <close> .arff and .csv file
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Conversion of arff file format to csv file format beta
Search for arff to csv converter or software able to handle these file types.
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Convert Weka attribute-relation data to Comma Separated Value.
We have found one software suitable in our database for this conversion.
Weka machine learning software from which .arff attribute files actually originate supports natively export of CSV format. We do not know about any other program or software that would be capable of this arff to csv conversion, so using the original software remains your only option.
Updated: May 14, 2019
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Microsoft Windows software - convert arff to csv on Windows
Weka
A machine learning software to solve data mining problems
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from arff file | No | Yes | Yes | arff editor | Yes | No | No | No |
to csv file | No | No | No | No | No | Yes | Yes | No |
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.
How To Convert Csv File To Arff Format In Weka
Additional links: Open arff file, Open csv file
ARFF
Files with arff file extension are related to Attribute-Relation file format. Some sort of ASCII format used by Machine Learning Project at the Department of Computer Science of The University of Waikato.
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CSV
A csv file extension is commonly used for Comma Separated Value file format. CSV is a simple text file with values divided by comma or other character used to separate values. Often used as an import/export format for databases and tables by many software.
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