geomaterials_optical2v_max {OpenMindat}

retrieve the geomaterials that less than the given optical 2v.

Description

: Queries the geomaterials have the lower optical 2v value than the given lt.

Usage

geomaterials_optical2v_max(lt, ...)

Arguments

lt

list of the signs.Please refer to the details.

...

Further named parameters.Other optional arguments.

Details

This function releated to the field "optical2v_max" of geomaterials. optical2vcalc:The calculated 2V angle minimum or average of biaxial minerals optical2vcalc2:The calculated 2V angle maximum of biaxial minerals optical2vmeasured:The measured 2V angle minimum or average of biaxial minerals optical2vmeasured2:The measured 2V angle maximum of biaxial minerals

Value

df, a data frame of geomaterials

Examples

## Not run: 
df <-geomaterials_optical2v_max(0.2)

## End(Not run)