Shulou(Shulou.com)06/02 Report--

This article introduces the knowledge of "r language and pyhthon data shaping and length-width conversion method". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Data length-width conversion is a common requirement, especially when summary tables are imported from Excel, they often need to be converted to one-dimensional tables (long data) before they can be provided to chart functions or models.

In the R language, there are two main packages that provide data length-width conversion:

Reshape2::melt/dcast

Tidyr::gather/spread

Library ("reshape2")

Library ("tidyr")

Mydata

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