# Reading csv file tests

Students have report a problem with the 
read.csv() function not finding the targeted file.  

1. Apparently on a MAC the file must be double quotes not single quotes
2. On windows the path part of the name needs to have forward slashes. 
 
Below are my tests on a windows operating systems.  Everything worked except
the backward slashes

Side Note:  One of my firsts test failed because my target file was not a .csv
            but rather a Excel file that uses the same icon.   

#_______________________________________________________________________________

# Test 1: the file in the working direction
read.csv("hsaPoly.csv")   # works

# Test 2a for windows - copying and the path as is
pathFile1 = "C:\Documents and Settings\Daniel Carr\My Documents\R-2.4.0\hsaPoly.csv"
read.csv(file=pathFile1)    # Fails

# Test 2b using forward slashes
pathFile2 = "C:/Documents and Settings/Daniel Carr/My Documents/R-2.4.0/hsaPoly.csv"
read.csv(file=pathFile2)    # works


# Test 3 using forward slashes for a file not in the working directory
pathFile3 = "C:/Documents and Settings/Daniel Carr/My Documents/CSI703/Data/Tretinoin.csv"
read.csv(file=pathFile3)    #works


# Test 4 With the R Console active, under the File menu there is a change dir
# options the lead to a brower.  Using this I changed the working directory
# to C:\Documents and Settings\Daniel Carr\My Documents\CSI703\Data 
read.csv("Tretinoin.csv")    #works