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Ingy döt Net 2013-10-27 22:24:23 +00:00
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Task/Text-processing-1/00DESCRIPTION
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{{Template:clarify task}}
Often data is produced by one program, in the wrong format for later use by another program or person. In these situations another program can be written to parse and transform the original data into a format useful to the other. The term "Data Munging" is [http://www.google.co.uk/search?q=%22data+munging%22 often] used in programming circles for this task.
A [http://groups.google.co.uk/group/comp.lang.awk/msg/0ecba3a3fbf247d8?hl=en request] on the comp.lang.awk newsgroup lead to a typical data munging task:
@ -20,7 +19,7 @@ longest period with successive invalid measurements (i.e values with
flag<=0)</pre>
The data is [http://www.eea.europa.eu/help/eea-help-centre/faqs/how-do-i-obtain-eea-reports free to download and use] and is of this format:
<pre style="height:20ex;overflow:scroll">
<pre style="overflow:scroll">
1991-03-30 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1
1991-03-31 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 10.000 1 20.000 1 20.000 1 20.000 1 35.000 1 50.000 1 60.000 1 40.000 1 30.000 1 30.000 1 30.000 1 25.000 1 20.000 1 20.000 1 20.000 1 20.000 1 20.000 1 35.000 1
1991-03-31 40.000 1 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2 0.000 -2