similar to: how to extract a specific group of data from a table?

Displaying 20 results from an estimated 10000 matches similar to: "how to extract a specific group of data from a table?"

2008 Jun 04
2
linear model in the repeated data type~
here is the data: y<-c(5,2,3,7,9,0,1,4,5) id<-c(1,1,6,6,7,8,15,15,19) t<-c(50,56,50,56,50,50,50,60,50) table1<-data.frame(y,id,t)//longitudinal data what I want to do is to use the linear model for each id ,then get the estimate value,like: fit1<-lm(y~t,data=table1,subset=(id==1)) but ,you can see the variable "id" is quite irregular,they are not arranaged in order
2008 Jun 05
1
quite complicated case(the repeated data arranage~)
Hi everyone: I have been struggling with this repeated data type for whole afternoon,I sent two emails to server for help,many people kindly responded , hereby thank you so much,but since I dont want to write to much in email,so I divide the problem in parts,so far this seem did not work out very well,so this is my whole problem~ first I have example of data here:
2008 Jun 04
1
linear model with the repeated data type~
here is the data: y<-c(5,2,3,7,9,0,1,4,5) id<-c(1,1,6,6,7,8,15,15,19) t<-c(50,56,50,56,50,50,50,60,50) table1<-data.frame(y,id,t)//longitudinal data the above is only part of data. what I want to do is to use the linear model for each id ,then get the estimate value,like: fit1<-lm(y~t,data=table1,subset=(id==1)) but ,you can see the variable "id" is quite
2009 Mar 04
5
how to create many variables at one time?
Hi: I need to create many variables at one time,how to do this in R? for eg ,X1,X2.......X100? Thanks~ [[alternative HTML version deleted]]
2011 Jan 01
3
Plot symbols: How to plot (and save) a graphic symbols originating from a table
Dear all, Please, I have a doubt regarding symbol plotting with data originating from a table. Please, see below: I have a tab delimited file called table1.txt with 4 columns: ypos animal var1 var2 5 cat gina <= lady gina \u2264 lady 7 dog bill >= tony bill \u2265 tony 9 fish dude <= bro dude \u2264 bro #I then load in the data to R: table1<-read.table("table1.txt",
2008 Jun 04
3
create many variables at one time~
I need to create 100 variable ,whose name is id.1,id.2~~~~id.100 then I need to let a vector say id<-c(id.1,id.2....id.100) any easy way to do this? thanks a lot~ [[alternative HTML version deleted]]
2008 Jan 07
4
is there something like or() ?
hi, this may be trivial, but we can't seem to find anything adequate, (although there is a work around with match() ). We are looking for something along the lines of plot(table1[table1$var2==or("a","b","c","d"),"var1"]) would be handy, with the potential or() function leading to what plot(table1[table1$var2=="a" |
2013 Feb 01
2
How does this function print, why is n1 which equals 1 printed as 2?
Windows 7, R 2.12.1 Colleagues, I am trying to understand the n.for.2means function. The code below is a copy of the function (renamed to n.for.2means.js). I have inserted a single line of code towards the bottom of the function which uses the cat function to print the value of n1. You will note the value (preceded by stars) is printed as 1. The function (1) prints a lot of output without any
2012 Jan 03
1
sqldf and not converting integers to floating point in SQLite
Hi, I have following 2 tables: Table 1: POSTAL | VALUE 1000|49 1010|100 1020|50 Table 2: INSEE | POSTAL A|1000 B|1000 C|1010 D|1020 I would like to convert this to the following: INSEE | VALUE_SPREAD A|24.5 B|24.5 C|100 D|50 I can achieve this with a nested SQL query (through counting the number of POSTAL that belong to any given INSEE, and diving the value of the postal in that INSEE by
2006 Feb 28
2
Need help with a Power Find()
I was hoping someone would be able to help me with creating a method. I have two tables. What I am trying to do is create a list of all the id''s from table2 that aren''t currently referenced by Table1''s address_id column. That way, when I create a new customer I can have a drop down list in the view of all the addresses that are not currently being used. ##### Database
2008 Jun 19
1
try to find the MLE of a function
Hi everyone: I have a density function f(x|theta)=theta*x^(theta-1),where 0<x<1,0<theta<infinite I want to pratice on R to find the MLE of this function,here is my code: x <- (0:10)/10 f<-function(theta) prod(theta*x^(theta-1)) mle(f) and r gave me :Error in eval(expr, envir, enclos) : argument is missing, with no default what mistake I just made?and how to add a
2011 Jan 02
1
Please, need help with a plot
Please, I wonder if someone knows how to add the less than or equal to symbol in the plot generated by the code below: var1<-c('age <= 3','age <= 7','age <= 10','age <= 11','age <= 20','age <= 25','age <= 30','age <= 45','age <= 50','age < 55','age >= 55')
2004 Apr 23
4
Tcl Tk table
Hi I've a problem with the following example: library(tcltk) .Tcl("array unset tclArray") myRarray <- matrix(1:1000, ncol=20) for (i in (0:49)) for (j in (0:19)) .Tcl(paste("set tclArray(",i,",",j,") ",myRarray[i+1,j+1],sep="")) tt<-tktoplevel() table1 <- tkwidget(tt,"table",variable="tclArray",
2019 Nov 12
6
[Bug 1382] New: nftables.py cmd leaking memory when ruleset contain mapping ip length to range with high limit 65535
https://bugzilla.netfilter.org/show_bug.cgi?id=1382 Bug ID: 1382 Summary: nftables.py cmd leaking memory when ruleset contain mapping ip length to range with high limit 65535 Product: nftables Version: unspecified Hardware: x86_64 OS: Gentoo Status: NEW Severity: major
2005 Feb 14
1
how can i make my program faster
Hello, right now, i have a program to collect data into a table. right now, my table is table1 <- data.frame(trial = NA, x = NA, y = NA) for each time when i want to add data into my data, i have to copy data of table into an array for each column, and then i add new data into my array, then i copy my array into the table one column by one column. For example temptrial <- table1$trial;
2003 Jul 29
1
Tktable active cell
Thomas Sudler <TSudler at ch.imshealth.com> wrote: > I want to start an action when i click into a cell. Example: When I click > into a cell, a message box should open with the information of the > location of the cell where I clicked in. <SNIP> So I only > need to know how to get the possition of the active cell. Thomas, Getting the active cell is easy, just use :
2013 May 01
1
Combine multiple tables into one
Hi, May be this helps: dat1<- as.data.frame(table1) ?dat2<- as.data.frame(table2) names(dat2)<-c("V3","V4") library(plyr) res<-join(dat1,dat2,type="full") ?res[is.na(res)]<- 0 ?res #? V1 V2 V3 V4 #1? 1? 1? 0? 0 #2? 1? 2? 0? 0 #3? 0? 0? 0? 1 #4? 0? 0? 0? 4 ?combinedtable<-as.matrix(res) ?colnames(combinedtable)<- NULL ?combinedtable #???? [,1] [,2]
2006 Nov 17
2
Forming SQL Query at run-time
Hi. I am trying to get data from mysql database using a couple of queries. I do one query to find out the indexes. Then i need to use these indexes in another query, but i keep getting errors. Here is something: numb <- dbSendQuery(con2, "select distinct(comparison) from table1") count <- fetch(numb, -1) my.matrix <- as.matrix(count) rs <- dbSendQuery(con2, "select
2010 Sep 10
4
for loop help please!
Hi Everyone, I have a 2-dim data.matrix(e.g., table1) in which row1 specifies a range of values. row2 - rown specify the number of times I want to replicate each corresponding value in row1. I can do this with the following function: rep(c(table1[1,]),c(table1[X,])) #where X would go from 2 - n. Now, I can do this manually by changing the values of X and save each resulting array/vector in
2009 May 06
2
rmysql query help
R HELP, I am trying to use an R script to connect to a mysql database. I am having a problem using a variable in the where clause that contains a "space" in its value. If I include the variable inside the quotes of the query - i think it is searching for the name of the variable in the database and not the value of the variable. If I put it outside the quotes, then it complains