I am working with a largish dataset of 25k lines and I am now tying to use predict. pred = predict(cuDataGlmModel, length + meanPitch + minimumPitch + maximumPitch + meanF1 + meanF2 + meanF3 + meanF4 + meanF5 + ratioF1ToF2 + rationF3ToF1 + jitter + shimmer + percentUnvoicedFrames + numberOfVoiceBreaks + percentOfVoiceBreaks + meanIntensity + minimumIntensity + maximumIntensity + ratioIntensity + noSyllsIntensity + startSpeech + syllables) I keep on getting this error message Error in eval(expr, envir, enclos) : numeric envir arg not of length one To be quite frank I am at a bit of a loss to know where to start looking to solve the problem. Any help most welcome. Stephen
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