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  • Interactive pivot tables with R(转)

    I love interactive pivot tables. That is the number one reason why I keep using spreadsheet software. The ability to look at data quickly in lots of different ways, without a single line of code helps me to get an understanding of the data really fast.

    Perhaps I can do the same now in R as well. At yesterday's LondonR meeting Enzo Martogliopresented briefly his rpivotTable package. Enzo builds on Nicolas Kruchten's PivotTable.jsJavaScript library that provides drag'n'drop functionality and wraps it with htmlwidget into R. The result is an interactive pivot table rendered in either your default browser or the viewer pane of RStudio with one line of code:

    ## Install packages
    library(devtools)
    install_github("ramnathv/htmlwidgets") 
    install_github("smartinsightsfromdata/rpivotTable")
    ## Load rpivotTable
    library(rpivotTable)
    data(mtcars)
    ## One line to create pivot table
    rpivotTable(mtcars, rows="gear", col="cyl", aggregatorName="Average", 
    vals="mpg", rendererName="Treemap")


    The following animated Gif from Nicolas' project page gives an idea of the interactive functionality of PivotTable.js.

    Example of PivotTable.js Source: Nicolas Kruchten

    Session Info

    R version 3.1.3 (2015-03-09)
    Platform: x86_64-apple-darwin13.4.0 (64-bit)
    Running under: OS X 10.10.2 (Yosemite)
    
    locale:
    [1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
    
    attached base packages:
    [1] stats     graphics  grDevices utils    
    [5] datasets  methods   base     
    
    other attached packages:
    [1] rpivotTable_0.1.3.4
    
    loaded via a namespace (and not attached):
    [1] digest_0.6.8      htmltools_0.2.6  
    [3] htmlwidgets_0.3.2 RJSONIO_1.3-0    
    [5] tools_3.1.3       yaml_2.1.13

    转自:http://www.magesblog.com/2015/03/pivot-tables-with-r.html
    ---------------------------------------------------------------------------------- 数据和特征决定了效果上限,模型和算法决定了逼近这个上限的程度 ----------------------------------------------------------------------------------
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  • 原文地址:https://www.cnblogs.com/payton/p/4390244.html
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