logspace: Generate logarithmically spaced vector

In ODS: Statistical Methods for Outcome-Dependent Sampling Designs

Description

logspace generates n logarithmically spaced points between 10^d1 and 10^d2. The utility of this function is equivalent to logspace function in matlab.

Usage

logspace(d1, d2, n)

Arguments

d1	first bound
d2	second bound
n	number of points

Value

a vector of n logarithmically spaced points between 10^d1 and 10^d2.

Examples

logspace(-6,7,30)

Example output

 [1] 1.000000e-06 2.807216e-06 7.880463e-06 2.212216e-05 6.210169e-05
 [6] 1.743329e-04 4.893901e-04 1.373824e-03 3.856620e-03 1.082637e-02
[11] 3.039195e-02 8.531679e-02 2.395027e-01 6.723358e-01 1.887392e+00
[16] 5.298317e+00 1.487352e+01 4.175319e+01 1.172102e+02 3.290345e+02
[21] 9.236709e+02 2.592944e+03 7.278954e+03 2.043360e+04 5.736153e+04
[26] 1.610262e+05 4.520354e+05 1.268961e+06 3.562248e+06 1.000000e+07

ODS documentation built on May 1, 2019, 8:45 p.m.