what is the difference between smoothing splines and r functions can i use multiple independent variables in smoothing r can you use a smooth spline in r which r function allows smoothing splines with multiple independent variables? how to use multiple variables smoothing spline? can you use multiple variables in r r smooth functions with variables which function smooths the splines for independent variable in r can you use multiple variables in smooth splines r how to do smoothing splines with multiple variables what variables do smoothing smoothing splines use smooth spline function can you use a smooth spline function with multiple variables can you use a smoothing spline on multiple variables which function to use for smoothing r spline how can i smooth a spline in r what is smooth spline how to use smooth spline in r smooths spline function which type of smoothing is used to smooth a spline