peek: Data Frame Viewing
In wakefield: Generate Random Data Sets

Description Usage Arguments Details Value See Also Examples

Convenience function to view all the columns of the head of a truncated data.frame. peek invisibly returns x. This makes its use ideal in a dplyr/magrittr pipeline.

1	peek(x, n = 10, width = 10, ...)

`x`	A `data.frame` object.
`n`	Number of rows to display.
`width`	The width of the columns to be displayed.
`...`	For internal use.

By default dplyr does not print all columns of a data frame (tbl_df). This makes inspection of data difficult at times, particularly with text string data. peek allows the user to see a truncated head for inspection purposes.

Prints a truncated head but invisibly returns x.

head

(dat1 <- r_data_frame(100, id, sentence, paragraph))
peek(dat1)
peek(dat1, n = 20)
peek(dat1, width = 40)

library(dplyr)

## Use in a dplyr/magrittr pipeline to view the data (silly example)
par(mfrow = c(2, 2))

r_data_frame(1000, id, sex, pet, employment, eye, sentence, paragraph) %>%
    peek %>%
    (function(x, ind = 2:5){ invisible(lapply(ind, function(i) pie(table(x[[i]]))))})

## A wider data set example
dat2 <- r_data_theme()

dat2
peek(dat2)

# A tibble: 100 x 3
      ID
   <chr>
 1   001
 2   002
 3   003
 4   004
 5   005
 6   006
 7   007
 8   008
 9   009
10   010
# ... with 90 more rows, and 2 more variables: Sentence <chr>, Paragraph <chr>
Source: local data frame [100 x 3]

    ID   Sentence  Paragraph
1  001 The reason Lorem ipsu
2  002 When I cam Magna frin
3  003 Mister Pre Ante lacus
4  004 But going  Lacinia an
5  005 President  Non lobort
6  006 Well, let  Commodo vu
7  007 Number one Eu faucibu
8  008 And do you Lectus dui
9  009 Governor R Pulvinar e
10 010 And I don' Quisque et
.. ...        ...        ... 
Source: local data frame [100 x 3]

    ID   Sentence  Paragraph
1  001 The reason Lorem ipsu
2  002 When I cam Magna frin
3  003 Mister Pre Ante lacus
4  004 But going  Lacinia an
5  005 President  Non lobort
6  006 Well, let  Commodo vu
7  007 Number one Eu faucibu
8  008 And do you Lectus dui
9  009 Governor R Pulvinar e
10 010 And I don' Quisque et
11 011 I did not  Sodales al
12 012 And one of Eu urna eg
13 013 The look,  Adipiscing
14 014 I'll get i Dictumst e
15 015 Since both Netus non 
16 016 And what I Euismod se
17 017 They have  Erat phase
18 018 Attacking  Hac a cong
19 019 Here's wha Sollicitud
20 020 Is it with Litora mag
.. ...        ...        ... 
Source: local data frame [100 x 3]

    ID                                 Sentence                                Paragraph
1  001 The reason is, is because, when we refor Lorem ipsum dolor sit amet, metus sed ni
2  002 When I came into office, we were still b Magna fringilla vestibulum vitae sed dic
3  003                        Mister President? Ante lacus, nunc in aliquam massa, curae
4  004 But going back to Libya because this is  Lacinia ante ac lectus donec nunc tempor
5  005                   President Bush didn't. Non lobortis vitae sem, cum. Quam, dapib
6  006 Well, let me first of all talk about our Commodo vulputate sed cursus montes done
7  007 Number one, I want to build manufacturin Eu faucibus, eget sollicitudin amet arcu
8  008                         And do you yeah. Lectus duis ac consequat interdum primis
9  009   Governor Romney, pay equity for women? Pulvinar egestas ex mollis eget et, matt
10 010 And I don't mean you, Mister President,  Quisque et et nascetur in vel amet sit. 
.. ...                                      ...                                      ... 

Attaching package: 'dplyr'

The following object is masked from 'package:wakefield':

    id

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Source: local data frame [1000 x 7]

     ID    Sex   Pet Employment   Eye   Sentence  Paragraph
1  0001 Female   Dog    Retired Brown I believe  Lorem ipsu
2  0002   Male  None  Full Time Brown  Lorraine? Diam nunc 
3  0003   Male Horse  Full Time  Blue The head o Vel enim t
4  0004 Female   Cat    Retired  Blue First, lif In, ligula
5  0005   Male   Cat  Full Time Brown Governor,  Phasellus 
6  0006 Female  Bird    Retired Brown Now one of Enim eget 
7  0007   Male   Cat  Part Time Brown And we are Dui litora
8  0008 Female   Dog  Full Time  Blue Instead, i Netus cras
9  0009   Male  None  Full Time Brown I served a Ultrices j
10 0010   Male   Cat  Full Time Hazel But it's i Quam ac ve
..  ...    ...   ...        ...   ...        ...        ... 
# A tibble: 100 x 49
     Age                     Animal Answer     Area            Car Children
   <int>                     <fctr> <fctr>   <fctr>         <fctr>    <int>
 1    32             Little Penguin    Yes    Rural     Camaro Z28        3
 2    29     Anatolian Shepherd Dog     No Suburban   Lotus Europa        0
 3    26         African Palm Civet     No    Urban      Merc 280C        1
 4    23         African Palm Civet     No    Rural     Volvo 142E        2
 5    24                Nurse Shark    Yes    Rural   Ferrari Dino        5
 6    21     Anatolian Shepherd Dog    Yes    Rural    Merc 450SLC        4
 7    26             Little Penguin    Yes    Urban Ford Pantera L        0
 8    32 Staffordshire Bull Terrier    Yes    Urban      Mazda RX4        0
 9    30             Little Penguin    Yes    Rural   Lotus Europa        5
10    32                Nurse Shark     No    Rural  Maserati Bora       10
# ... with 90 more rows, and 43 more variables: Coin <fctr>, Color <fctr>,
#   Date <date>, Death <lgl>, Dice <int>, DNA <fctr>, DOB <date>, Dummy <dbl>,
#   Education <fctr>, Employment <fctr>, Eye <fctr>, Grade <dbl>,
#   Grade_Level <fctr>, Group <fctr>, hair <fctr>, Height <dbl>, Income <dbl>,
#   Browser <fctr>, IQ <dbl>, Language <fctr>, Level <int>, Likert <ord>,
#   Lorem_Ipsum <chr>, Marital <fctr>, Military <fctr>, Month <fctr>,
#   Name <chr>, Normal <dbl>, Political <fctr>, Race <fctr>, Religion <fctr>,
#   SAT <dbl>, Sentence <chr>, Sex_1 <fctr>, Sex_2 <fctr>, Smokes <lgl>,
#   Speed <dbl>, State <fctr>, String <chr>, Upper <chr>, Valid <lgl>,
#   Year <int>, Zip <chr>
Source: local data frame [100 x 49]

   Age     Animal Answer     Area        Car Children  Coin     Color       Date Death Dice      DNA        DOB Dummy  Education Employment   Eye Grade Grade_Leve     Group   hair Height   Income Browser  IQ   Language Level     Likert Lorem_Ipsu   Marital   Military     Month   Name     Normal  Political     Race  Religion  SAT   Sentence  Sex_1    Sex_2 Smokes Speed      State     String Upper Valid Year   Zip
1   32 Little Pen    Yes    Rural Camaro Z28        3 Heads Peachpuff 2017-10-06 FALSE    5  Adenine 2005-03-27     1 9th Grade     Retired Green  81.6          8 Treatment    Red     70 22845.04      IE  90    Konkani     3   Disagree Lorem ipsu Separated Marine Cor      June  Merle -1.4112721 Republican    White    Muslim 1492 Governor R   Male Intersex  FALSE    59       Ohio N7Fjw52nNn     C FALSE 2004 66580
2   29 Anatolian      No Suburban Lotus Euro        0 Tails     Gray6 2017-10-06 FALSE    3  Guanine 2004-02-01     0 Associate'  Part Time  Blue  86.7          3   Control  Black     72 48485.65  Safari  83     Pashto     3    Neutral Vel nulla   Divorced       Army       May  Chong 0.35636999   Democrat    White Christian 1431 They're ju   Male   Female  FALSE    59 Massachuse my7snqD8wO     E  TRUE 2006 79032
3   26 African Pa     No    Urban  Merc 280C        1 Tails  Hotpink4 2017-10-06  TRUE    1  Guanine 2004-11-05     0 No Schooli  Full Time Green  80.5          7   Control Blonde     73 61047.72  Chrome  82 Kinyarwand     2 Strongly A Adipiscing   Widowed       Navy      July George 0.31083852   Democrat    White Christian 1620 Where are  Female   Female   TRUE    55    Georgia b6rPtm0Ty7     D  TRUE 2015 68387
4   23 African Pa     No    Rural Volvo 142E        2 Tails Peachpuff 2017-10-06  TRUE    5  Adenine 2004-08-02     0 Nursery Sc  Full Time Brown  79.1          9   Control  Brown     63 47376.78  Chrome 105    Bengali     4    Neutral Lacus per   Divorced       Navy  November  Jesus -0.1427016 Republican    White     Hindu 1461 Oh, well,  Female   Female   TRUE    51       Utah Kjc17wLoOk     C  TRUE 2015 79032
5   24 Nurse Shar    Yes    Rural Ferrari Di        5 Heads     Gray6 2017-10-06  TRUE    2 Cytosine 2004-06-12     0 Some Colle Unemployed  Blue  87.5          4 Treatment  Brown     68 29925.52      IE  97    Bengali     3    Neutral Phasellus  Separated       Navy September  Peter -1.4761608   Democrat    White Christian 1470 In fact, h Female     Male  FALSE    52 California zei2mIJjBz     A FALSE 2013 71165
6   21 Anatolian     Yes    Rural Merc 450SL        4 Tails    Grey26 2017-10-06  TRUE    3  Thymine 2003-11-12     0 Bachelor's Unemployed  Blue  84.8          9 Treatment    Red     73 13148.28  Chrome 108   Maithili     3 Strongly A Amet mauri  Divorced Marine Cor  November Sammie -0.0089083   Democrat Hispanic     Hindu 1563 Those are    Male     Male  FALSE    62   Colorado tZWfbtXfD6     D  TRUE 2000 66580
7   26 Little Pen    Yes    Urban Ford Pante        0 Tails    Gray39 2017-10-06  TRUE    5  Guanine 2004-03-12     1 Some Colle  Full Time Brown  84.6         10 Treatment  Black     76 39605.67  Safari  98    Persian     4 Strongly D Quis nostr  Divorced Marine Cor   October   Yong -1.1479564   Democrat    White     Hindu 1614 Nothing co   Male     Male  FALSE    51  Minnesota 3I2zeDOCy8     D  TRUE 1999 71165
8   32 Staffordsh    Yes    Urban  Mazda RX4        0 Tails   Thistle 2017-10-06 FALSE    2  Adenine 2005-02-03     0 Regular Hi  Full Time  Blue    88          8 Treatment Blonde     70  6565.41  Chrome 104       Akan     4 Strongly A Taciti sit  Divorced       Army      June   Jean -0.5514795   Democrat Hispanic      None 1570 And I will   Male Intersex  FALSE    58   Virginia T6icwaNtVL     B  TRUE 2000 63589
9   30 Little Pen    Yes    Rural Lotus Euro        5 Tails Peachpuff 2017-10-06  TRUE    2  Adenine 2005-03-22     1 9th Grade  Unemployed  Blue  90.4          4   Control  Black     68 12229.04      IE 106    Spanish     2 Strongly D Tellus, le   Married       Navy     April  Andre 1.45192817 Republican    White    Muslim 1386 Bringing d Female     Male   TRUE    59 Washington txKaJIeIx9     D FALSE 2000 15400
10  32 Nurse Shar     No    Rural Maserati B       10 Heads     Gray6 2017-10-06 FALSE    3 Cytosine 2003-09-17     1 Regular Hi  Full Time  Blue  86.8         11   Control  Brown     66  21176.4  Chrome  99     Telugu     4      Agree Aliquam fe   Widowed       Army       May  Micah -0.6472541   Democrat    White  Buddhist 1618 That's the Female   Female  FALSE    60 California 9j47VQTiGD     A FALSE 2010 63589
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