assign unique pch characters to a string of rows
Hello,
Sometimes I have used a named vector of pch such as:
pch.vec <- c('june_2728'=1,'june_2829'=6,
'june_29'=8,'july_01'=15,'july_14' =17)
and, suposing that these dates are stored in a vector called date, then
use them as follows:
plot(data$sarp_avg ~data$cstar_avg, xlim=c(0,3), ylim=c(0,3.5), xlab="CSTAR LAI", ylab="SARP LAI", main="PISTACHIOS JUNE 27- JULY 14",
pch=pch.vec[date])
(a quick answer with no checking, use with caution!)
Al 30/09/2010 22:53, En/na jenna martin ha escrit:
Hi - I am trying to assign a unique pch character to 5 different sections of one row. For example, in my data set, i would like a unique character representing each group of rows (one character rep's the multiple values for each date, so 5 unique values for 5 dates) rows 1:26 are attached to june_2728, and rows 27:78 are june_2829 rows 79:104 are june_29 rows 105:114 are july_01 rows 115:146 are july_14 I tried
plot(data$sarp_avg ~data$cstar_avg, xlim=c(0,3), ylim=c(0,3.5),
xlab="CSTAR LAI", ylab="SARP LAI", main="PISTACHIOS JUNE 27- JULY 14", pch=c(1,6,8,15,17)) but I have a feeling it is just recycling the 5 pch values, instead of assigning them to the specific string of rows. Thanks for any help you might have!! [[alternative HTML version deleted]]
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