Fehler mit Textplot in Wordcloud

Question

Ich erhalte einen Fehler, wenn ich die Textplot() - Funktion im Wordcloud-Paket verwende, um Punkte in einem Diagramm (einem PCA) zu beschriften.

Der Fehler ist: Error in match.arg(halign) : 'arg' must be NULL or a character vector

Hier sind die Variablen x und y:

> pca1$li 
     Axis1  Axis2 
01 -26.3659354 18.0330276 
02 -19.3576309 -18.9132485 
03 -27.2273522 3.3373583 
04 -23.0849100 0.9764428 
05 8.1548417 29.4034493 
06 14.9676626 -8.4668479 
07 -9.2283936 4.5088119 
08 17.9377761 -11.3030900 
09 -0.8272139 2.3342824 
10 30.3111878 18.8577228 
11 2.0019239 -6.2150041 
12 22.2964319 34.6544348 
13 25.4172737 -39.6409997 
14 4.4278974 -5.5672158 
15 4.2769304 -11.4208116 
16 19.2807143 -7.9307193 
17 5.1918409 -5.2005851 
18 -17.6999115 -26.7897873 
19 -15.5909519 6.0809629 
20 -3.6095312 1.2653160 
21 -12.7500774 8.5864060 
22 1.4774272 13.4100946 

Der Text (was ich Etiketten hier nennen) soll ein Zeichen Vektor sein, die ich sicher von :

> labels 
[1] "Vipond Park"  "Little Joe"  "Napa Sunset"  "Deadline"  "Deschutes"  "Gifford Pinchot" 
[7] "Mount Hood"  "Okanogan"  "Warm Springs" "Colville"  "Wenatchee"  "Olympic"   
[13] "Smithers"  "Mount Stevens" "Jesmond"   "McBridePeak"  "Cataract"  "Prairie Bluff" 
[19] "Tom Beal"  "Humboldt"  "Warner"   "Goosenest"  

> class(labels) 
[1] "character" 

Hier sind Plotten Spezifika (I weitere Informationen hinzufügen, als nötig, weil ich manchmal mehr Datenpunkte Plot):

> myPch <- c(18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 
+   18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18) 
> 
> myCol <- transp(c("blue","red","darkgreen","black","purple","blue","red","darkgreen","black","purple", 
+ "blue","red","darkgreen","black","purple", "blue","red","darkgreen","black","purple", "blue","red", 
+  "darkgreen","black","purple", "blue","red","darkgreen","black","purple", "blue","red","darkgreen", 
+  "black","purple", "blue","red","darkgreen","black","purple","blue","red","darkgreen","black","purple", 
+  "blue","red","darkgreen","black","purple","blue","red","darkgreen","black","purple", "blue","red", 
+  "darkgreen","black","purple","blue","red","darkgreen","black","purple"),1) 
> 
> 
> 

ich die Daten plotten:

> plot(pca1$li, col=myCol, cex=3, pch=myPch) 

> abline(h=0,v=0,col="grey",lty=2) 

ich dann gehen die Etiketten auf dem Grundstück hinzuzufügen, aber ich habe den unten Fehler.

> textplot(pca1$li[,1], pca1$li[,2], words = labels, cex=1.4, new=FALSE) 
Error in match.arg(halign) : 'arg' must be NULL or a character vector 
> 

Answer 1

Der Fehler, den Sie bekommen ist durch falsche Syntax für textplot Funktion:

textplot(object, halign=c("center","left","right"), 
    valign=c("center", "top", "bottom"), cex, ...) 

In Ihrem Beispiel das "Objekt" Argument als PCA1 $ li gegeben [1], während "halign" wird als pca1 $ li [, 2] angegeben.

Da "halign" nur die Argumente "center", "left" oder "right" akzeptiert, gibt das falsche Argument pca $ li [, 2] die Fehlermeldung zurück.