How to hide grid when plotting a large matrix

[vsimko]

This might be a bug, inconsistent API, missing feature or bug in the documentation.

In corrplot.mixed.R the parameter addgrid.col is documented as:

#' @param addgrid.col The color of grid, if \code{NULL}, don't add grid.

In corrplot.R the parameter addgrid.col is documented as:

#' @param addgrid.col The color of grid. The default value is depends on
#'   \code{method}, if \code{method} is \code{color} or \code{shade}, the
#'   default values is \code{"white"}, otherwise \code{"grey"}.

It looks like it should be possible to use addgrid.col to disable the rendering of the grid.
But it does not work. See the following code snippet:

M <- matrix(runif(2500, 0.5, 1), nrow = 50)
corrplot(M, method = "color", cl.pos = "n", tl.pos = "n", addgrid.col = NULL)

However, I would like to generate something like this:

[taiyun]

M <- matrix(runif(2500, 0.5, 1), nrow = 50)
corrplot(M, method = "color", cl.pos = "n", tl.pos = "n", addgrid.col = NA)

[vsimko]

Thanks, it works !
It means, that the @param addgrid.col documentation in R/corrplot.mixed.R and R/corrplot.R needs some update.

[taiyun]

YES. Many thanks for your passion and great job!

[vsimko]

It looks like that current API works as follows:

• addgrid.col = NA : no grid is rendered
• addgrid.col = NULL : chooses color based on the method parameter
• addgrid.col = <string or number> : renders the grid with user-defined color

And I'm not sure if it is a feature or a bug.

[taiyun]

YES.

It's a feature:)

[vsimko]

fixed in #47