Dear all,
I know it is as simple as c <- (a + b)/2 to compute the average
(element-wise) of two data vectors. However, I can't work out to compute the
average when you have many data vectors in a directory. I have done this:
------------------------------------
setwd("/.../data/")
listfiles <- list.files(pattern=".pre") # list all datafiles in the
directory
loadfiles <- lapply(listfiles,read.csv) # read the csv files
meanData <- lapply(loadfiles,mean) # intended to compute the element-wise
average.
------------------------------------
Which does not produce the right result. Let me explain myself better... The
data files have the form (500 rows):
Time,Pressure
0,300
1,320
2,350
And I want to compute the average time (which is trivial since all time
vectors are the same) and the average pressure (from all the data files
collected). I know the function "mean" is not the one to use, but I cannot
find any function that allows me to compute average of two vectors. I hope
this is clear enough for you guys to understand. Thanks in advance for your
kind attention.
Best regards,
Peter
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