[R] Stacking several vectors from the list

Gabor Grothendieck ggrothendieck at gmail.com
Tue Jun 29 01:40:11 CEST 2010

On Mon, Jun 28, 2010 at 7:30 PM,  <astarodo at uci.edu> wrote:
> Hi everybody,
> I'm working on the very
> messy data, I have tried to clean it up in SAS and
> SAS/IML but there is not enough info on how to handle certain things
> in SAS so I have turned to R. The thing itself should be rather
> simple, so i was wondering if someone could help me out.
> The original .csv has ([1] 7138 6338 ) dimensions with funds with the corresponding dates and observations for each date for around 10 years and 4000+ funds, meaning in COL5 has the next fund's name and so on.
> COL1                  COL2               COL3           COL4
> HBNNF US Equity Date            EQY_SH_OUT      PX_VOLUME
>                        #NAME?         #N/A N/A   135000
>                        7/7/2008        #N/A N/A          105000
>                        7/17/2008       #N/A N/A          590000
>                        7/22/2008       #N/A N/A          40000
> so in R this .csv is somehow read as list (using typeof) and not as dataframe, and a lot of stuff like regexpr searches in the

The typeof of a data.frame is "list" so you do have a data frame --
not a list.  Perhaps the problem is that you do not want factor
columns but want character columns instead.  Use read.csv(..., as.is =

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