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assertive.reflection (version 0.0-3)

assert_r_has_jpeg_capability: Does R have a capability?

Description

Check to see if R has a specific capability.

Usage

assert_r_has_jpeg_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_png_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_tiff_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_tcltk_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_x11_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_aqua_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_http_ftp_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_sockets_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_libxml_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_fifo_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_cledit_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_iconv_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_nls_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_profmem_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_cairo_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_icu_capability(severity = getOption("assertive.severity", "stop"))


 assert_r_has_long_double_capability(severity = getOption("assertive.severity", "stop"))


assert_r_has_libcurl_capability(severity = getOption("assertive.severity", "stop"))


r_has_jpeg_capability()


r_has_png_capability()


r_has_tiff_capability()


r_has_tcltk_capability()


r_has_x11_capability()


r_has_aqua_capability()


r_has_http_ftp_capability()


r_has_sockets_capability()


r_has_libxml_capability()


r_has_fifo_capability()


r_has_cledit_capability()


r_has_iconv_capability()


r_has_nls_capability()


r_has_profmem_capability()


r_has_cairo_capability()


r_has_icu_capability()


r_has_long_double_capability()


r_has_libcurl_capability()

Arguments

severity
How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".

Value

The is_* functions return TRUE if R has the capability and FALSE (with a cause) otherwise. The assert_* functions return nothing but throw an error if the corresponding is_* function returns FALSE.

See Also

capabilities

Examples

Run this code
## Not run: 
# if(r_has_png_capability())
# {
#   png("test.png")
#   with(cars, plot(speed, dist))
#   dev.off()
# } else 
# {
#   pdf("test.pdf")
#   with(cars, plot(speed, dist))
#   dev.off()
# }
# ## End(Not run)

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