Problem with CSVExampleSource
VD
New Altair Community Member
Hi,
I have no problem when loading the data of the following table with Excel:
However, after saving this table with CSVExampleSetWriter and loading the file with CSVExampleSource RM complains the line 3 (and 4): "Number of columns in line 3 was unexpected, was: 5, expected: 4". I guess it's due to the character combination ...\" in the csv-file.
Due to the very huge size of my original database file I cannot open it and replace the string \" with another combination. How can I handle this problem??
I'm using RM 4.6 on WindowsXP machine.
<operator name="Root" class="Process" expanded="yes">
<operator name="ExcelExampleSource" class="ExcelExampleSource" breakpoints="after">
<parameter key="excel_file" value="test.xls"/>
<parameter key="first_row_as_names" value="true"/>
</operator>
<operator name="CSVExampleSetWriter" class="CSVExampleSetWriter">
<parameter key="csv_file" value="test.csv"/>
</operator>
<operator name="CSVExampleSource" class="CSVExampleSource">
<parameter key="filename" value="test.csv"/>
</operator>
</operator>
Thanks for your help and Best Regards
VD
I have no problem when loading the data of the following table with Excel:
1 XXXX XX\\XX XXXX XXXX 2 XXXX XXXX XXXX XXXX 3 XXXX XXXX\ XXXX XXXX 4 XXXX XXXX\ XXXX XXXX 5 XXXX XX\\XX XXXX XXXX 6 XXXX XX\\XX XXXX XXXX |
Due to the very huge size of my original database file I cannot open it and replace the string \" with another combination. How can I handle this problem??
I'm using RM 4.6 on WindowsXP machine.
<operator name="Root" class="Process" expanded="yes">
<operator name="ExcelExampleSource" class="ExcelExampleSource" breakpoints="after">
<parameter key="excel_file" value="test.xls"/>
<parameter key="first_row_as_names" value="true"/>
</operator>
<operator name="CSVExampleSetWriter" class="CSVExampleSetWriter">
<parameter key="csv_file" value="test.csv"/>
</operator>
<operator name="CSVExampleSource" class="CSVExampleSource">
<parameter key="filename" value="test.csv"/>
</operator>
</operator>
Thanks for your help and Best Regards
VD
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0
Answers
-
G'Day,
You're right, the single backslash "escapes" the following character, which in the problem lines is a space, ....which is also meant to be a separator. All quite annoyingly logical. It's not a problem to flip '\' to '/', like this...<operator name="Root" class="Process" expanded="yes">
<operator name="backslash_in" class="CSVExampleSource">
<parameter key="filename" value="C:\Users\CJFP\Documents\rm_workspace\slash.txt"/>
<parameter key="read_attribute_names" value="false"/>
<parameter key="column_separators" value=",\s*|;\s*;\s+"/>
<parameter key="trim_lines" value="true"/>
</operator>
<operator name="back_2_forwards_slash" class="Replace">
<parameter key="attributes" value=".*"/>
<parameter key="replace_what" value="\\"/>
<parameter key="replace_by" value="/"/>
</operator>
<operator name="forward_slash_out" class="CSVExampleSetWriter">
<parameter key="csv_file" value="C:\Users\CJFP\Documents\rm_workspace\forward_slash.csv"/>
<parameter key="write_attribute_names" value="false"/>
<parameter key="quote_nominal_values" value="false"/>
</operator>
<operator name="Forward_slash_in" class="CSVExampleSource">
<parameter key="filename" value="C:\Users\CJFP\Documents\rm_workspace\forward_slash.csv"/>
<parameter key="read_attribute_names" value="false"/>
<parameter key="column_separators" value=",\s*|;\s*;|\s+"/>
<parameter key="trim_lines" value="true"/>
</operator>
</operator>
/code]
( I just pasted the examples into slash.txt )0 -
Hello Haddock,
Wow - Thanks!!
Best Regards
VD0