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Please help me with this via R. Create a 29 elements ordered factor f, consisting of 4 missing values ( NA ) followed by the

image text in transcribed Please help me with this via R.

Create a 29 elements ordered factor f, consisting of 4 missing values ( NA ) followed by the letters a to z without y, with its levels being "z" a b 26 Levels: z The output of print(f[20:29], max. levels = 5) is [1] p q r s t u v w x z 26 Levels: z

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