	I have developed a R script that works perfectly. Since it is long and complicated, I want to create a R package and share it with my team members. With one exception of the function ’TrafficData,’ all functions of the package version of my script works fine. 

> datasets = TrafficData()
Error in as.numeric(q) : 
  cannot coerce type 'builtin' to vector of type  ‘double'

I have checked all functions of my script where `q` is called in ’TrafficData.' They all work fine. For example, TrafficData calls the functions ‘K’, ‘phi.X.’ and ‘qk.’ ‘K’ is only one that requires ‘q.’

> K
function (q, x) 
{
    kjam = as.numeric(kjam)
    kstar = as.numeric(kstar)
    qstar = as.numeric(qstar)
    x = as.numeric(x)
    q = as.numeric(q)
    m = qstar/(kjam - kstar)
    kf = (kstar/qstar) * q
    kc = (m * kjam - q)/m
    if (x == 1) 
        k = kc
    else k = kf
    return(k)
}
<environment: namespace:traffic>
> K(3.2,1)
[1] 0.4207143

	As I was developing the script, I found that I needed ‘as.numeric' command. I use it throughout the script. Removing ‘q = as.numeric(q)’ from ‘K’ gives the same Error message. 

	I am a novice with package.skeleton. I am unsure how to find the bug. Any suggestions will be greatly appreciated.

Thanks,
Paul

	To be thorough, I provide the following Warnings. I don’t believe they are connected to the above Error. Suggestions for eliminating these warnings are also welcome. Incidentally, I did not provide an Example.

* checking whether package ‘traffic’ can be installed ... WARNING
Found the following significant warnings:
  Warning: /Users/PJO/traffic/man/traffic-package.Rd:29: All text must be in a section
  Warning: /Users/PJO/traffic/man/traffic-package.Rd:30: All text must be in a section
* checking DESCRIPTION meta-information ... WARNING
Non-standard license specification:
  What license is it under?
* checking Rd cross-references ... WARNING
Unknown package ‘<pkg>’ in Rd xrefs
* checking for code/documentation mismatches ... WARNING
Data with usage in documentation object 'C' but not in code:
  C
* checking data for ASCII and uncompressed saves ... WARNING
  
  Note: significantly better compression could be obtained
        by using R CMD build --resave-data
               old_size new_size compress
  datasets.rda    150Kb     76Kb       xz
  df.plot.rda      57Kb     29Kb       xz
  df.plot1.rda     70Kb     35Kb       xz
  df.rda           20Kb     10Kb       xz
  output.rda       36Kb     23Kb    bzip2
  runs.rda         34Kb     22Kb    bzip2
* checking examples ... ERROR
Running examples in ‘traffic-Ex.R’ failed
The error most likely occurred in:

> ### Name: traffic-package
> ### Title: traffic package
> ### Aliases: traffic-package traffic
> ### Keywords: package
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