retrieve the geomaterials whose density are lower density than a given value.

: Queries the list of geomaterials that have lower density than lt.

Usage

geomaterials_dens_less_than(lt, ...)

Arguments

lt

float value. dmeas: measured density of the mineral. This is either the lower limit (if there is a dmeas2) or average (if there is no dmeas2). dmeas2:measured maximum density of mineral

...,

Further named parameters.Other optional arguments.

Value

df, a data frame of geomaterials

Details

This function releated to the field "density_max" of geomaterials. retrieve all the geomaterials that has higher density than the given density(lt).

Examples

if (FALSE) { # \dontrun{
df <-geomaterials_dens_less_than(3)
} # }