search for: col2grey

In an R graphic, I'm using cond.col <- c("green", "yellow", "red") to represent a quantitative variable, where green means 'OK', yellow represents 'warning' and red represents 'danger'. Using these particular color names, in B/W, red is darkest and yellow is lightest. I'd like to find color designations to replace yellow and

...xamp, a tool for creating interactive Tk based examples of what options to functions do (mainly for plots, but one example shows a non-plotting function). dynIdentify and TkIdentify, tools that create a scatterplot with labels, then allow you to drag the labels with the mouse to better locations. col2grey, a tool to convert your colors to greyscale so you can get a general feel of how they would look when printed non-color, or copied, etc. SensSpec.demo, a demonstration of how to compute positive and negative predictive value from sensitivity, specificity, and prevelance using a virtual population...

...xamp, a tool for creating interactive Tk based examples of what options to functions do (mainly for plots, but one example shows a non-plotting function). dynIdentify and TkIdentify, tools that create a scatterplot with labels, then allow you to drag the labels with the mouse to better locations. col2grey, a tool to convert your colors to greyscale so you can get a general feel of how they would look when printed non-color, or copied, etc. SensSpec.demo, a demonstration of how to compute positive and negative predictive value from sensitivity, specificity, and prevelance using a virtual population...

I want to take the first row of each unique ID value from a data frame. For instance > ddTable <- data.frame(Id=c(1,1,2,2),name=c("Paul","Joe","Bob","Larry")) I want a dataset that is Id Name 1 Paul 2 Bob > unique(ddTable) Will give me all 4 rows, and > unique(ddTable$Id) Will give me c(1,2), but not accompanied by the name column.