=unit(0.5,'cm'),
axis.ticks.y = element_blank(),
axis.ticks.x = element_line(),
axis.line.x...=unit(0.5,'cm'),
axis.ticks.y = element_blank(),
axis.ticks.x = element_line(),
axis.line.x...=unit(0.5,'cm'),
axis.ticks.y = element_blank(),
axis.ticks.x = element_line(),
axis.line.x...=unit(0.5,'cm'),
axis.ticks.y = element_blank(),
axis.ticks.x = element_line(),
axis.line.x...=unit(0.5,'cm'),
axis.ticks.y = element_blank(),
axis.ticks.x = element_line(),
axis.title