Assigns values to
rawDist objects for spatial density plotting.
a character or function defining the name for the assigned value. Can be
This function can be used to plot values as color-densities on sample maps. The function is useful e.g. for examining the spatial distribution of geochemical data, such as element ratios or isotope ratios, along sample materials. If the
rawDist object contains only one sample spot sequence, the
value parameter should be expressed as a data.frame with two columns. If the
rawDist object consists of several sample spot sequences, the
value parameter should be a list of data.frames with length equivalent to number of spot sequences. The first column in all
value data.frames represents spot number and should be equivalent to
$spots marks in the
rawDist object. The second column represents the values to be assigned. Column names are ignored.
Returns a list of class
rawDist containing spot value information.
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data(barium) data(shellsizes) ## rawDist shellvalues <- assign.value(shellsizes, barium, value.name = "Ba/Ca") plot(shellvalues, spot.size = "actual", spot.type = "value", main.type = "none") ## spotDist shellvalues.aligned <- spot.dist(shellvalues) plot(shellvalues.aligned, spot.size = "actual", spot.type = "idvalue", spot.color = "darkgrey", highlight.gbs = c("WG_start", "WG_end"))
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