bond.cir: no visible global function definition for 'melt'
bond.cir: no visible global function definition for 'ggplot'
bond.cir: no visible global function definition for 'aes'
bond.cir: no visible global function definition for 'geom_line'
bond.cir: no visible global function definition for 'ggtitle'
bond.vasicek: no visible global function definition for 'melt'
bond.vasicek: no visible global function definition for 'ggplot'
bond.vasicek: no visible global function definition for 'aes'
bond.vasicek: no visible global function definition for 'geom_line'
bond.vasicek: no visible global function definition for 'ggtitle'
est.cir: no visible global function definition for 'melt'
est.cir: no visible global function definition for 'ggplot'
est.cir: no visible global function definition for 'aes'
est.cir: no visible global function definition for 'geom_line'
est.cir: no visible global function definition for 'ggtitle'
est.cir: no visible global function definition for 'pseudoinverse'
est.feller: no visible global function definition for 'pseudoinverse'
est.ou: no visible global function definition for 'pseudoinverse'
est.vasicek: no visible global function definition for 'melt'
est.vasicek: no visible global function definition for 'ggplot'
est.vasicek: no visible global function definition for 'aes'
est.vasicek: no visible global function definition for 'geom_line'
est.vasicek: no visible global function definition for 'ggtitle'
est.vasicek: no visible global function definition for 'pseudoinverse'
sim.cir: no visible global function definition for 'melt'
sim.cir: no visible global function definition for 'ggplot'
sim.cir: no visible global function definition for 'aes'
sim.cir: no visible global function definition for 'geom_line'
sim.cir: no visible global function definition for 'ggtitle'
sim.vasicek: no visible global function definition for 'melt'
sim.vasicek: no visible global function definition for 'ggplot'
sim.vasicek: no visible global function definition for 'aes'
sim.vasicek: no visible global function definition for 'geom_line'
sim.vasicek: no visible global function definition for 'ggtitle'