[R-SIG-Mac] Unexpected input error

[Steven McKinney]

Hi Alan,

This is probably more appropriately addressed on the R-help email list,
as it is not really Mac-specific.

Copying your code into R on my Mac, it appears to work, no error message for me.

I see you have an older version of R, so it's unclear if it is a version issue.
My version isn't the latest, but more recent than yours.




> require("rattle")
Loading required package: rattle
Rattle: A free graphical interface for data mining with R.
Version 2.6.26 r77 Copyright (c) 2006-2013 Togaware Pty Ltd.
Type 'rattle()' to shake, rattle, and roll your data.

> weatherDS <- new.env()
> evalq({
+    data <- weather
+    nobs <- nrow(weather)
+    vars <- -grep('^(Data|Location|RISK_)', names(data))
+    form <- formula(RainTomorrow ~ .)
+    target <- all.vars(form)[1]
+    set.seed(42)
+    train <- sample(nobs, 0.7*nobs)
+ }, weatherDS)

> get("train", env = weatherDS)
  [1] 335 343 105 302 233 188 266  49 236 252 163 256 331  91 356 330 365  42 166 195 313  48
 [23] 341 325  29 176 133 308 152 282 248 272 130 229   2 276   3  69 298 201 124 142  13 315
 [45] 140 339 285 205 309 197 106 110 126 246 324 362 210  53  81 158 207 300 231 172 257  58
 [67]  82 336 306  72 312 349  64 141 301 310 351 109 149   1 167  46 102 183 219 159  66  26
 [89]  24  85 185 287 292 255 357 199  90 139 200 348 286 274 265 103 247 366 193 190 269 275
[111] 156 214 191 115 136 135 363  89 338 319  88 101 322 144 175  96 221 304  56 303 273 350
[133] 148 337 198 134 189  27 242 235  34  19 104 174 352 181  38 328  65  33 355  70 360 277
[155] 243 164  40   7 342 293 260 113 123 291 289  37 353 294 278 327 212 321 347  93  83 333
[177] 157 112 150 196 171 160  59 345 261 182 267 227 232  51  35 138  23 223 296  10 268 225
[199] 125 204 147  86 244  73 279 297 155  78 203  41 213 245  52 186 329 127  87 318 305 132
[221] 161  25  79 228  45 116  43 162 209 226 283  22 259 290 180 316  12 262  71  54   9 128
[243] 314 254  68 184  20  18 121 111  39 251  31  60 340 249
> 

> sessionInfo()
R version 2.15.3 (2013-03-01)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] en_CA.UTF-8/en_CA.UTF-8/en_CA.UTF-8/C/en_CA.UTF-8/en_CA.UTF-8

attached base packages:
 [1] stats4    grid      splines   stats     graphics  grDevices utils     datasets  methods  
[10] base     

other attached packages:
 [1] rattle_2.6.26     rpart_4.1-1       glmnet_1.9-3      glinternet_0.9.0  lme4_0.999999-0  
 [6] Matrix_1.0-12     lattice_0.20-15   party_1.0-6       vcd_1.2-13        colorspace_1.2-1 
[11] MASS_7.3-23       strucchange_1.4-7 sandwich_2.2-10   zoo_1.7-9         coin_1.0-21      
[16] mvtnorm_0.9-9994  modeltools_0.2-19 survival_2.37-4  

loaded via a namespace (and not attached):
[1] nlme_3.1-108 tools_2.15.3
> 

Steven McKinney

Statistician
Molecular Oncology and Breast Cancer Program
British Columbia Cancer Research Centre


________________________________________
From: r-sig-mac-bounces at r-project.org [r-sig-mac-bounces at r-project.org] On Behalf Of Alan Randolph [alan_randolph at hotmail.com]
Sent: September 25, 2013 2:58 PM
To: r-sig-mac at r-project.org
Subject: [R-SIG-Mac] Unexpected input error

Hi, I am newbie to R so pardon me if this is not the forum for asking this question.

I am getting the error "unexpected input in "evalq({‚" in the Boost Tutorial example section 13.3 of Graham William's, "Data Mining with Rattle and R.  Below is the line as I have entered it and version information.

To me it looks like I have copied the command verbatim from the book.  What can I try to resolve the problem?

> evalq({
   data <- weather
   nobs <- nrow(weather)
   vars <- -grep('^(Data|Location|RISK_)', names(data))
   form <- formula(RainTomorrow ~ .)
   target <- all.vars(form)[1]
   set.seed(42)
   train <- sample(nobs, 0.7*nobs)
}, weatherDS)
Error: unexpected input in "evalq({‚"


Mac OS X version 10.8.5
platform       i386-apple-darwin9.8.0
arch           i386
os             darwin9.8.0
system         i386, darwin9.8.0
status
major          2
minor          14.2
year           2012
month          02
day            29
svn rev        58522
language       R
version.string R version 2.14.2 (2012-02-29)
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