r - Reshaping dataframe - two columns from correlation variables -

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मेरे पास निम्न डीएफ है 

  var1 var2 freq 1 अब 10 2 बीए 5 3 बीडी 10

से बना 

  सहायता & lt; - data.frame (var1 = c ("a", "b", "b"), var2 = C ("b", "a", "d"), फ़्रीक = सी (10, 5, 10))

अब तक के संबंध बीए के समान हैं, और मैं उम्मीद कर रहा हूं 

  var1 var2 freq 1 ab 15 2 bd 10

कोई भी विचार?

यहाँ एक तरीका है: 

  setNames (सकल ($ freq, as.data.frame (t # Var1 var2 फ़्राइक # 1 एबी 15 # 2 बीडी 10
(लागू करें [3], 1, सॉर्ट करें)), राशि), नाम (सहायता) एचटीएमएल>

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