News

GMT: Changing the color of a symbol within a xy file

This is a very specific problem with Generic Mapping Tools which I didn’t find well documented: if you map certain symbols to a list of coordinates specified in COORDINATES.xy, you can specify that subsets of those coordinates are mapped to symbols in different colors in two ways:

  1.  You add a column containing numerical values that map to colors in COLORS.cpt. This option is illustrated in my earlier post on making WALS maps.
  2. You add coloring instructions directly to your COORDINATES.xy file by adding a line such as > -Gred. The hard-to-find part here was the fact that you need to prefix the color option by >.

In this case, your COORDINATES.xy file might look like this:

8.74, 9.72
11.80, 29.28
-8.65, 141.52
66.40, 17.43
70.67, 130.91
-29.71, 19.08
43.50, -88.50
-2.91, -68.91
42.04, 43.99
-10.61, 150.73
> -Gwhite -Wblack
56.80, -120.35
-13.81, -65.63
7.60, 6.04
> -Ggray -Wblack
-16.27, 168.01
-16.17, 168.14
-16.31, 168.05
-17.70, 168.38
-15.43, 167.24

You can then use this file, for example, with the following commands to produce a world map displaying these coordinates:

pscoast -R-20/340/-70/80 -Dl -A100/0/1 -JQ9.5i -W -B -K > MAP.ps
psxy COORDINATES.xy   -R -J -O -Sc0.25c -i2,1 -Gblack >> MAP.ps

The result looks like this:

Mapping irreality in Konstanz

Last week, I had the privilege of giving two talks in Konstanz. In the colloquium of the linguistics department, I talked about our latest research on counterfactual futures in Oceanic and what they tell us about tense and mood in our subject languages. Download the slides here: Mapping Irreality in Konstanz. Read the paper here:  PrinceEtAlProceedingsLE2018.pdf.

Storyboard books in Daakaka.

Storyboard books in Daakaka Here is the pdf that I used to produce the storyboard picture books now available at amazon. I have used storyboards both from the Totem Field Storyboards site and storyboards I have produced as part of the MelaTAMP research project. The Daakaka text is a selection of the results from last year’s fieldwork on Ambrym. Enjoy!

Mapping Irreality in Göttingen

I went to Göttingen last week to talk about modality, which is turning into a pleasant tradition. In my talk, I outlined the typological debate on the irrealis distinction, introduced the tripartite branching-time model that I think will help us the relevant cross-linguistic variation, and discussed how the same approach also sheds new light on some long-standing questions about the nature of modality, counterfactuality and epistemic necessity. You can find the slides here.

Complexity at the POS level

There was an interesting small workshop in Torun in April on Measuring Linguistic Complexity. When the call came out, I had just finished a preliminary overview on the previous literature on the topic and was ready to get cracking, so I got together with Vera Demberg to test our hypothesis that focussing on POS tags rather than the token-level annotations would give us more reliable results on syntactic flexibility. Our results are in the proceedings.

Perspectives on Low-Resource Languages and Language Varieties

Internet penetration world map from wikimediaMy colleague Stefania Degaetano-Ortlieb and I, with generous support from Elke Teich, organised a workshop last week. We invited researchers from a variety of backgrounds, spanning language documentation, typology, language acquisition, computational linguistics and historical linguistics. We were very happy with the inspiring talks and vibrant discussions about challenges and solutions, which I am sure will continue beyond the small event we had.