Databases
StackOverflow2013
Postsdbo
POCan boxplot in base R display 'NA' when the grouping factor has missing values?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCan boxplot in base R display 'NA' when the grouping factor has missing values?
    primarykey
    data
    text
    <p>I want this: </p> <p><img src="https://i.stack.imgur.com/xr0S0.png" alt="a boxplot with NA as a category name"></p> <p>And I thought that passing <code>na.action=na.pass</code> to boxplot would let NA show up in the grouping names. Here is some sample code: </p> <pre><code>#Build a fake dataset set.seed(212012) nn = 100 sample_data &lt;- data.frame( score = c( rpois(nn, 1), rpois(nn, 2), rpois(nn, 1.5), rpois(nn, 3)), category = c( rep(0, nn), rep(1, nn), rep(2, nn), rep(NA, nn) )) boxplot( score ~ category, data=sample_data, na.action=na.pass ) </code></pre> <p>But that produces this: </p> <p><img src="https://i.stack.imgur.com/vuujA.png" alt="enter image description here"></p> <p>The 'simple' way to get what I want is the following code, but it's not great for exploratory data analysis: </p> <pre><code>sample_data$category2 &lt;- sample_data$category sample_data$category2[ is.na(sample_data$category) ] &lt;- 'NA' boxplot( score ~ category2, data=sample_data ) </code></pre> <p>Any hints from the R Guru's out there? I was able to find out about na.pass from <a href="https://stackoverflow.com/questions/5557676/what-are-the-options-for-na-action-in-boxplot">this more general discussion</a>, and the origin of na.pass from <a href="https://stat.ethz.ch/pipermail/r-devel/2004-May/029589.html" rel="nofollow noreferrer">Prof. Ripley here</a>. But there doesn't seem to be a distinction between missing data (NA's) appearing in the data that will be split by the factor and missing data in the factor itself. Am I missing something simple, or is this more of a feature request? </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USNathan VanHoudnos
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCan boxplot in base R display 'NA' when the grouping factor has missing values?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POCan boxplot in base R display 'NA' when the grouping factor has missing values?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POCan boxplot in base R display 'NA' when the grouping factor has missing values?
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload