r - How to retrieve contents of ... as list of calls? -


अगर मैं एक समारोह में पारित किया गया था, तो मैं इसे substitute । (

)

f वर्ग कोड के ऑब्जेक्ट को वापस देता है। विकल्प को आमतौर पर deparse के साथ जोड़ दिया जाता है, इसे एक चरित्र वेक्टर में बदल दिया जाता है, लेकिन मुझे इसके बारे में कोई परवाह नहीं है।)

मैं इसे ... में तर्क के साथ दोहराना चाहता हूं। यह प्रयास केवल पहली तर्क देता है: 

  जी <- फ़ंक्शन (...) {विकल्प (...)} जी (पाप (पीआई), कॉस (पी / 2)) ## पाप (पी)   
 यह प्रयास एक त्रुटि फेंकता है:  
  h & lt; - फ़ंक्शन (...) {lapply (..., (पिन (पीआई), कॉस (पी / 2)) ## Match.fun (FUN) में त्रुटि: ## 'कॉस (पी / 2)' फ़ंक्शन, कैरेक्टर या प्रतीक नहीं है   
 यह प्रयास एक अलग त्रुटि फेंकता है:  
  i & lt; - फ़ंक्शन (...) {lapply (सूची (...), विकल्प)} i (पाप (पीआई), कॉस (पी / 2)) ## लापली में त्रुटि (सूची (...), विकल्प): ## '...' गलत संदर्भ में उपयोग किया जाता है   
 मैं  ... ?   
 
 
 में कैसे पारित किए गए अभिव्यक्ति को कैसे प्राप्त करूं? यदि आप क्लास कॉल के ओजेटेट्स रखना चाहते हैं:  
  i & lt; - फ़ंक्शन (...) {l <- match.call () l <- as.list (l) L & lt; - l [-1] l & i; lt; - फ़ंक्शन (...) {l <- match.call () एल [[1]] & lt; - as.name ("अभिव्यक्ति") l} मैं (पाप (पी), कॉस (पी / 2))   
 या हो सकता है कि आपको मैच केल की ज़रूरत है कि आप उसके बाद क्या करना चाहते हैं। Hth   

 





























    




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