[BioC] Special Characters? (flowViz | R question)

[Keith Satterley]

Hi Matt,

try the help info on quotes, using the command:

?Quotes

Hope it helps,

cheers,

Keith

========================
Keith Satterley
Bioinformatics Division
The Walter and Eliza Hall Institute of Medical Research
Parkville, Melbourne,
Victoria, Australia
=======================

M. Jankowski wrote:
> Hi All,
> 
> Thank you all very much for your previous help answering my newbie questions!
> 
> I am working my way through the filter.pdf document that pertains to
> the flowViz package. When I copy this text from the *.pdf:
> 
> xyplot(`SSC-H` ~ `FSC-H` | Visit, data = GvHD, filter = n2gate,
> displayFilter = TRUE, subset = Patient == "6")
> 
> I see the plot indicated in the pdf.  Type in this:
> 
> xyplot('SSC-H' ~ 'FSC-H' | Visit, data = GvHD, filter=n2gate,
> displayFilter=TRUE, subset = Patient == "6")
> 
> and I get a bunch of errors. The difference seems to be '  vs `. What
> is reason for using ` vs ' or even "? Is there a resource that I can
> use to look up special characters like this? I've searched through the
> help files/etc. and no luck so far.
> 
> Thanks!
> Matt
> 
> 
> There were 42 warnings (use warnings() to see them)
>> warnings()
> Warning messages:
> 1: NAs introduced by coercion in: as.double.default(x)
> 2: NAs introduced by coercion in: as.double.default(y)
> 3: no non-missing arguments to min; returning Inf in: min(x[, id])
> 4: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 5: no non-missing arguments to min; returning Inf in: min(x[, id])
> 6: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 7: NAs introduced by coercion in: as.double.default(x)
> 8: NAs introduced by coercion in: as.double.default(y)
> 9: no non-missing arguments to min; returning Inf in: min(x[, id])
> 10: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 11: no non-missing arguments to min; returning Inf in: min(x[, id])
> 12: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 13: NAs introduced by coercion in: as.double.default(x)
> 14: NAs introduced by coercion in: as.double.default(y)
> 15: no non-missing arguments to min; returning Inf in: min(x[, id])
> 16: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 17: no non-missing arguments to min; returning Inf in: min(x[, id])
> 18: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 19: NAs introduced by coercion in: as.double.default(x)
> 20: NAs introduced by coercion in: as.double.default(y)
> 21: no non-missing arguments to min; returning Inf in: min(x[, id])
> 22: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 23: no non-missing arguments to min; returning Inf in: min(x[, id])
> 24: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 25: NAs introduced by coercion in: as.double.default(x)
> 26: NAs introduced by coercion in: as.double.default(y)
> 27: no non-missing arguments to min; returning Inf in: min(x[, id])
> 28: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 29: no non-missing arguments to min; returning Inf in: min(x[, id])
> 30: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 31: NAs introduced by coercion in: as.double.default(x)
> 32: NAs introduced by coercion in: as.double.default(y)
> 33: no non-missing arguments to min; returning Inf in: min(x[, id])
> 34: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 35: no non-missing arguments to min; returning Inf in: min(x[, id])
> 36: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 37: NAs introduced by coercion in: as.double.default(x)
> 38: NAs introduced by coercion in: as.double.default(y)
> 39: no non-missing arguments to min; returning Inf in: min(x[, id])
> 40: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 41: no non-missing arguments to min; returning Inf in: min(x[, id])
> 42: no non-missing arguments to max; returning -Inf in: max(x[, id])
> 
> _______________________________________________
> Bioconductor mailing list
> Bioconductor at stat.math.ethz.ch
> https://stat.ethz.ch/mailman/listinfo/bioconductor
> Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor