I have 2 surveys with a similar structure, can Displayr analyze or compare them?

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Displayr can only generate a report for a single data file at a time.  At the moment, it can't link the reports or compare them - however, this is a frequently requested feature and we will consider developing it in future.</div>
If the data is an Excel file or can be converted to Excel file, we would recommend to combine all the responses into 1 file. You can add a new variable to distinguish the respondents (eg. Online vs paper survey). See here for more details on getting the data file: http://mktresearch.org/wiki/Getting_a_Data_File