Posts Tagged ‘ gsub() ’

Example 8.27: using regular expressions to read data with variable number of words in a field

February 25, 2011
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Example 8.27: using regular expressions to read data with variable number of words in a field

A more or less anonymous reader commented on our last post, where we were reading data from a file with a varying number of fields. The format of the file was:1 Las Vegas, NV --- 53.3 --- --- 12 Sacramento, CA --- 42.3 --- --- 2The complication in the...

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Grabbing Tables in Webpages Using the XML Package

October 24, 2010
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ables are pretty common in web pages as data sources, and the most direct way to get these data is probably to copy and paste. This is OK if there are only two or three tables, and when we need to grab 5000 tables in 1000 web pages, we may not really wish to fulfill

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