sparktable: graphical tables with R

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1 sparktable: graphical tables with R Alexander Kowarik 1, Bernhard Meindl 1, Stefan Zechner 2 1 Department of Methodology, Statistics Austria 2 Department of Statistics and Probability Theory, TU WIEN, Austria Workshop on Exploratory Data Analysis and Visualisation Vienna, Mai 27-28, 2010 Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

Probability Theory, TU WIEN, Austria Workshop on Exploratory Data Analysis and

2 Contents 1 Motivation 2 Introductory examples 3 The R-package sparktable 4 Examples revisited 5 Outline Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

3 Motivation B Motivation Providing quick access to additional insights by the use of graphical tables Presentation of numerous data in a well-arranged way Improving data density by using spark-graphs Results should be easy to modify Development of a tool to create graphical tables easily How can this be achieved? R-package sparktable Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

Results should be easy to modify Development of a tool to create graphical tables easily How can this

4 Introductory examples Example (production indices) A Seasonally adjusted production indices by branch, monthly. Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

5 Introductory examples Example (production indices enhanced) A Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

6 Introductory examples Example (developments of the Austrian population) B Bevölkerung zu Jahresbeginn seit 1981 nach Geschlecht bzw. breiten Altersgruppen (Absolutwerte) Nach Geschlecht Nach Altersgruppen Jahr Insgesamt Männer auf Männer Frauen Frauen 0 bis 19 Jahre 20 bis 64 Jahre 65 Jahre und älter dar.: 75 Jahre und älter Q: STATISTIK AUSTRIA, Statistik des Bevölkerungsstandes.- Revidierte Ergebnisse für 2002 bis Erstellt am: Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

: 75 Jahre und älter 1981 7.553.326 3.570.172 3.983.154 896 2.184.224 4.212.971 1.156.131 454.278 1982 7.584.094 3.590.286 3.993.808 899 2.159.778 4.292.823 1.131.493 465.300 1983 7.564.185 3.582.

7 Introductory examples Example (developments of the Austrian population, enhanced) B Bevölkerung zu Jahresbeginn seit 1981 nach Geschlecht bzw. breiten Altersgruppen (Überblick) Minimum Maximum Insgesamt Männer Frauen Männer auf Frauen Jahre Jahre Jahre Jahre Bevölkerung zu Jahresbeginn seit 1981 nach Geschlecht bzw. breiten Altersgruppen (Absolutwerte) Geschlecht Altersgruppen Jahr Insgesamt Männer Frauen Männer auf Frauen 0-19 Jahre Jahre 65+ Jahre 75+ Jahre Kowarik, Meindl,.. Zechner. (STAT,... TU) sparktable Vienna,... Mai 27-28, / 18

609 4.287.213 Männer auf 1.000 Frauen 896 949 896 949 0-19 Jahre 2.184.224 1.763.948 1.763.948 2.184.224 20-64 Jahre 4.212.971 5.140.425 4.212.971 5.140.425 65+ Jahre 1.156.131 1.450.887 1.068.944 1.

8 The R-package sparktable A The R-package sparktable R-package sparktable (available on CRAN) provides the following features 1 Different graphical representations Combining numerical with graphical information into a table Creation of tables for online- or print publication 1 for details, see: The Visual Display of Quantitative Information, E. R. Tufte Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

into a table Creation of tables for online- or print publication 1 for details, see: The Visual Display of

9 The R-package sparktable B Overview of sparktable spark_init(): This functions allows to set a list of properties depending on the type of the desired spark-graph for any given numerical input data-vector sparktable_config(): Using this function, meta-objects are created in order to generate multiple spark-graphs from multidimensional input-data setpara(): Allows to set or change (graphical) parameters for data-objects generated with sparktable_config() print.sparktable(): Output of graphical tables in EPS or HTML-format given objects generated with sparktable_config() Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

multidimensional input-data setpara(): Allows to set or change (graphical) parameters for data-objects generated with sparktable_config() print.

10 The R-package sparktable A A (very) simple example We show a very simple example to create a single spark-graph Generating random input-data: dat <- rnorm (25, 100, 25) Creating a suitable input-object and setting several graphic parameters: dat <- spark _ init (dat, cw =100, ch =50, showiqr = FALSE, pointwidth =4, type = line ) Drawing the eps-image spark (" example.eps ", dat, type =" line ", output =" eps ") Displaying the image (scalable!) Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

(dat, cw =100, ch =50, showiqr = FALSE, pointwidth =4, type = line ) Drawing the eps-image spark (" example.

11 The R-package sparktable B Graphical representations Creation of customized time-series, box- and barplots Time series plots Bar plots Box plots Graphical options include (among others) Highlighting of specific values in time series plots Choice of colors Choice of boundaries Inclusion of interquartile-range in time-series plots Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

of specific values in time series plots Choice of colors Choice of boundaries Inclusion of

12 The R-package sparktable A Choosing the output-format The user can decide to generate eps or html output Eps graphics can be included in L A TEX for scientific use Html code can be used to show both data and graphics on websites Use of open-source JavaScript libraries in sparktable to create the graphics for html-output 23 2 jquery: 3 jquery.sparkline: Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

open-source JavaScript libraries in sparktable to create the graphics for html-output 23 2 jquery: http://jquery.

13 Examples revisited Example (production indices) A The data: head (pi) group values values2 1 BbisF BbisF BbisF BbisF BbisF BbisF Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

2 96.2 4 BbisF 99.3 99.3 5 BbisF 98.6 98.6 6 BbisF 100.9 100.

14 Examples revisited Example (production indices) A Create an object of class sparktable: meta <- sparktable _ Config (df=pi, groups = unique (pi [,1]), groupvar = names (pi )[1], vars = names (pi )[2:3], typenumeric = list (NA,c(" ")), typeplot = list (" line ",NA), output =" html ") Change the height of the sparklines: meta $ metadata <- setpara ( meta $ metadata, "ch", 25, col =1) Create the HTML output: obj <- print (meta, outfile =" test.html ",outdir =" examples ") Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

=" html ") Change the height of the sparklines: meta $ metadata <- setpara ( meta $ metadata, "ch", 25, col =1) Create the HTML output: obj

15 Examples revisited Example (developments of the Austrian population) B The data: data ( population ) print ( head ( pop )) time variable value Insgesamt Insgesamt Insgesamt Insgesamt Insgesamt Insgesamt Create an object of class sparktable: out <- sparktable _ Config ( df=pop, groups = unique ( pop [,2]), groupvar =" variable ", vars =c(" value "), typenumeric = list (c("1--1", " ", " min ", " max ")), typeplot =" line ",output =" eps " ) Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

object of class sparktable: out <- sparktable _ Config ( df=pop, groups = unique ( pop [,2]), groupvar =" variable ", vars =c(" value "), typenumeric =

16 Examples revisited Example (developments of the Austrian population) B Change some graphical parameters: out $ metadata <- setpara ( out $ metadata, " top _ padding ", 0) out $ metadata <- setpara ( out $ metadata, " bottom _ padding ", 0) out $ metadata <- setpara ( out $ metadata, " pointwidth ", 4) colvec <- c(" 1981 ", " 2009 ", " Minimum ", " Maximum ", " ") Create outputfile outpop.tex objpop <- print ( out, outfile =" outpop.tex ", colvec = colvec ) Note: the resulting file outpop.tex is only a minimal working L A TEX-file. Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

c(" 1981 ", " 2009 ", " Minimum ", " Maximum ", " 1981-2009 ") Create outputfile outpop.tex objpop <- print ( out, outfile =" outpop.

17 Examples revisited Example (developments of the Austrian population) B Bevölkerung zu Jahresbeginn seit 1981 nach Geschlecht bzw. breiten Altersgruppen (Überblick) Minimum Maximum Insgesamt Männer Frauen Männer auf Frauen Jahre Jahre Jahre Jahre Bevölkerung zu Jahresbeginn seit 1981 nach Geschlecht bzw. breiten Altersgruppen (Absolutwerte) The graphical table Geschlecht helps to illustrate changes Altersgruppen and developments in thejahr Austrian Insgesamtpopulation. Männer Frauen Männer auf Frauen 0-19 Jahre Jahre 65+ Jahre 75+ Jahre Kowarik, Meindl, 2004 Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

18 Outline B Outline Package sparktable is at an early stage of development some improvements (e.g. additional customization options, additional graphs) are already planned to be implemented User-feedback is (of course) very welcome Kowarik, Meindl, Zechner (STAT, TU) sparktable Vienna, Mai 27-28, / 18

additional customization options, additional graphs) are already planned to

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