How to read date time from 2 columns with zoo?

问题:

I have a csv file contains minutes exchange rate

,,,,,,, EURUSD,20110103,000000,1.3353,1.3354,1.3353,1.3354,4 EURUSD,20110103,000100,1.3355,1.3356,1.3355,1.3356,4 EURUSD,20110103,000200,1.3355,1.3356,1.3350,1.3350,4 EURUSD,20110103,000300,1.3349,1.3349,1.3348,1.3348,4 EURUSD,20110103,000400,1.3347,1.3348,1.3347,1.3348,4 ...

Trying to do below but not working for me. How to read date time from 2 columns?

rate 

above code generated error : index has 5 bad entries at data rows: 1 2 3 4 5

回答1:

You need to specify colClasses to keep the leading zeros on the third column, and to remove the first column (since you can't have both numbers and characters in a zoo object). Note that the default action if multiple index columns are specified is to paste them together with a space between them.

Lines ,,,,,,, EURUSD,20110103,000000,1.3353,1.3354,1.3353,1.3354,4 EURUSD,20110103,000100,1.3355,1.3356,1.3355,1.3356,4 EURUSD,20110103,000200,1.3355,1.3356,1.3350,1.3350,4 EURUSD,20110103,000300,1.3349,1.3349,1.3348,1.3348,4 EURUSD,20110103,000400,1.3347,1.3348,1.3347,1.3348,4 "  rate 

MODIFIED: Simplified.

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