Draw Three Dimensional Predict Plot Using Package 'rgl'
Add lines with labels to pre-existing ggplot
Whether a string vector can be converted to numeric
calculated slope and intercept from object of class lm
expand.grid with two data.frames
Make a new data set for prediction
Get aspect information of a ggplot
calculate mean values of two consecutive number
Make new formula
Pick default color
Visualize predictions from the multiple regression models.
Decide whether a vector can be treated as a numeric variable
Generate regular sequences of desired length between minimum and maxim...
Convert a numeric vector into groups
Draw 3d predict plot using package rgl
Rank a numeric vector using proportional table and returns character v...
Rank a numeric vector using proportional table and returns a new ordin...
Restore factors in data.frame as numeric
restore data column with I() function
Restore data from arithmetic operator
Restore factors in variable name as numeric
get opposite arithmetic operator
Find variable names in data.frame
Create a sequence over the range of a vector
Make angle data with slope data
change string to pattern
theme_bw with no grid
Draw 2 dimensional and three dimensional plot for multiple regression models using package 'ggplot2' and 'rgl'. Supports linear models (lm), generalized linear models (glm) and local polynomial regression fittings (loess).