r - Need help creating the following sequence: -


in r, need create vector b = (1, 1+pi, 1+2pi, 1+3pi,...,1+19pi). unsure how this. keep trying use seq command (i.e. seq(1, 1+npi n = 1:19) , that's totally wrong!), don't know proper syntax make work, never does.

any appreciated.

r needs multiplication operator.

b <- 1+ seq(0,19)*pi

or faster in situations speed might matter:

 b <- 1+ seq.int(0,19)*pi

you use equivalent:

b <- 1+ 0:19*pi

because ":" operator has high precedence ( see ?syntax), it's reasonable safe. careful understand precedence when use minus or plus sign might parse binary operator (remembering spaces ignored , unary-minus has higher precedence single-colon, binary minus or plus has lower precedence :

> 1: 5+5 [1]  6  7  8  9 10

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