Displaying 8 results from an estimated 8 matches for "caliculating".
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calculating
2009 Jun 08
2
problem with bulk insert into a *.csv file
Hi all,
I am trying to create a "index.csv" with caliculating different
types of caliculations .
In that i have to caliculate on 10,000 studies and have to insert many no of
rows more than 500,000
for that right now I am inserting every row after caliculating and doing
data.frame
but its taking much time to create that index.csv
is there any thing like bulk...
2010 Mar 09
2
Problem with mean
Hi all,
I got one intresting problem with caliculating mean that is
while i am taking mean of values
*0.6, -0.8, 4, -3.8*
using
*val<-c(0.6, -0.8, 4, -3.8)*
*mean(val)*
it given result as
*2.775558e-17*
but the actual result is *"0"*
can any one suggest how can I get correct mean result in this case
can any one suggest how I can far...
2009 Jan 20
2
problem with writing data to *.xls file
Hi all,
I read data from *.xls file and i did some caliculations on that data and
now i have to create a column in the same .xls file
and i have to insert the data in to the consicutive rows related to the
previous data
i tried it with *write.xls() *but the thing is it deleted all the columns
previously presented in that file and it created a column and inserted data
can any one suggest what to do
2009 Feb 02
2
parsing problem
Hi all,
I am trying to parse a vector for caliculating minimum in that vector the
vector having values like
1 Kontrolle
2 Placebo
3 125mg/kg
4 250mg/kg
5 500mg/kg
6 1000mg/kg
hear i tries for comverting it into numeric with using "as.numaric()"
function
but i got values like
5
6
2
3
4
1
it gi...
2009 Jun 22
2
problem with checking wether file is present or not
Hi all,
I have a problem with checking File is present in the directory or not
like
I have a sequence of files in one folder I have to take each file in order
and have to caliculate on those files data but in order some files are
missing for that I have to check and load those files for that I am using
condition like
if(file.exists(findings)==TRUE){}
its giving results for files which are
2009 Jan 23
1
problem in appending data into*.csv file
Hi all,
I got a problem with appending data into the *.csv file
like
abc<-read.csv("bbb.csv") # reading data from one csv file
abc1<-mean(subset(abc,Group=="A"))
hear i have to creat a .csv file and in that i have to create
column's with names *group, mean* and farther i have to caliculate for
Groups:-A, B, C, D, F
and i have to append data to consicutive rows of
2009 Mar 19
1
problem with Dates
Hi all,
I am strugling with date formates and caliculating diferent operations like
different between 2 dates and
getting minimum in vector of dates
that is i m working with dates in formate "6/22/1992 12:00:00 AM"
and the vector is
[1] 6/4/1992 12:00:00 AM 2/13/1992 12:00:00 AM 6/19/1992 12:00:00 AM
[4] 2/11/1992 12:00:00 AM...
2010 Jan 12
1
Problem with toString
Hi all,
I got a problem with * "toString()"* function
its behaving odd in some times most of the times its giving correct results
but in peculier cases its giving results like *"愭]"*
especially while i am working with c# +R-project
thats also after getting some error like
after trying to caliculate "*mean("NA")" *
can any one help me why its