search for: dfrm2

I am new to R and am sure this is simple, but I been unable to find a solution. I have 5 columns of data labeled "X", "Y", "A","B","C". I can easily xyplot(Y ~ X | A) but I want the colors of the symbols to be based upon the values of B and the shape of the symbols to be determined by C. There are approximately four distinct values of B and C

Hi there, I have a huge dataframe containing 70,000 observations. I have filtered this dataframe (let it's name be "transformed_dataframe") as I wanted to select only those observations which are greater than or equal to 60,001 regarding the very first identity column. So I have a transformed dataframe now including 10,000 obeservations (from 60,001 - to 70,000) and if you send