"B"

Removed all X-axes under the graph.

"T"

Remove all X-axes on the graph.

"L"

Remove all Y axes on the left of the graph.

"R"

Remove all Y axes on the right side of the graph.

"B1" ~ "Bx"

The X-axis below the graph. The numbers are 1-based indices of the axis.

"T1"〜"Tx"

The X-axis on the graph. The number is the 1-based index of the axis.

"L1" ~ "Lx"

Y axis on the left of the graph. The numbers are 1-based indices on the axis.

"R1" ~ "Rx"

Y-axis on the right of the graph. The numbers are 1-based indices on the axis.