Please read the last line of every message to r-help and provide
reproducible code.
On Thu, Oct 16, 2008 at 12:44 AM, Ted Byers <[EMAIL PROTECTED]> wrote:
> Thanks Gabor,
>
> To be clear, would something like testframe$est[[i]] <- fp$estimate be
> valid within my loop, as in (assuming I created te
Thanks Gabor,
To be clear, would something like testframe$est[[i]] <- fp$estimate be
valid within my loop, as in (assuming I created testframe before the
loop):
for (i in 1:length(V4) ) {
x = read.csv(as.character(V4[[i]]), header = FALSE, na.strings="");
y = x[,1];
fp = fitdistr(y,"expo
testframe$newvar <- ...whatever...
(or see ?transform for another way)
adds a new column to the data frame. The table does not
have to pre-exist in your MySQL database and you don't need
a create statement; however, if the table does pre-exist the columns
of your data frame and those of the datab
Thanks Gabor,
I get how to make a frame using existing vectors. In my example, the
following puts my first three columns into a frame (and displays it:
> testframe <- data.frame(mid=V1,year=V2,week=V3)
> testframe
mid year week
1 251 2008 18
2 251 2008 19
3 251 2008 20
4 251 2008
Put the data in an R data frame and use dbWriteTable() to
write it to your MySQL database directly.
On Wed, Oct 15, 2008 at 9:34 PM, Ted Byers <[EMAIL PROTECTED]> wrote:
>
> Here is my little scriptlet:
>
> optdata =
> read.csv("K:\\MerchantData\\RiskModel\\AutomatedRiskModel\\soptions.dat",
> hea
Here is my little scriptlet:
optdata =
read.csv("K:\\MerchantData\\RiskModel\\AutomatedRiskModel\\soptions.dat",
header = FALSE, na.strings="")
attach(optdata)
library(MASS)
setwd("K:\\MerchantData\\RiskModel\\AutomatedRiskModel")
for (i in 1:length(V4) ) {
x = read.csv(as.character(V4[[i]]),
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