cood.conv {RoMEBS} | R Documentation |
The function performs conversion between the coordinates' formats: decimal degrees and MEDITS formats
cood.conv(x,y,q=NA,type=1)
x |
vector of longitude coordinates in either decimal degrees format or in MEDITS' projects format |
y |
vector of latitude coordinates in either decimal degrees format or in MEDITS' projects format |
q |
vector of quadrant information. Default value is NA. It is used, and ence it is mandatory, in case of MEDITS' format coordinates. |
type |
type code defining the type of coordinates' conversion to be applied. Allowed values are 1 and 2: 1 should be used to convert digital degrees to MEDITS format. 2 should be used to convert MEDITS coordinates in decimal degrees |
The cood.conv
function performs conversion between the coordinates' formats: decimal degrees and MEDITS formats. Use type=1
to perform decimal degrees to MEDITS format conversion, otherwise use type=2
. The q
field has NA default value, even if it should be used in case of type=2
conversion. x
, y
and q
should have the same length.
The function cood.conv
returns a data.frame that is made of 3 columns (x,y,q) in case of type=1
conversion, and 2 columns in case of type=2
conversions.
Walter Zupa <zupa@coispa.it>
ta <- RoMEBS::TA coord1 <- cood.conv(x=ta$SHOOTING_LONGITUDE, y=ta$SHOOTING_LATITUDE, q=ta$SHOOTING_QUADRANT,type=2) coord2 <- cood.conv(coord1$x,coord1$y,NA,1)