matrix multiplication - multiply two non-na matrices in R, result is all-NA -


मेरे पास दो मैट्रिक्स हैं, ए और बी। 

  sum (is.na (ए )) = 0 योग (is.na (B)) = 0

लेकिन जब मैं उन्हें गुणा करता हूँ, परिणाम (एक 45x1 मैट्रिक्स) सभी एनए है 

 < कोड> योग (is.na (A% *% B)) = 45

कोई भी विचार? मैं अब डेटा अपलोड करने पर काम करूंगा, ताकि लोग रुचि ले सकें अगर लोग पुन: उत्पन्न कर सकें।


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