AnalyticBridge

Subscribe to Vincent Granville's Weekly Digest:
• Singapore

127 members

402 members

Latest Activity

jadelim replied to jadelim's discussion plotting of graph in R in the group Data Mining
"Hi again!  I wanted to find the correlation between RateA and RateB. I've tried the method using regression. Is there any other method that I can use to find the correlation? Another scenario here. The above one was RateA and RateB, both…"
Jul 30, 2012
Balázs Bárány replied to jadelim's discussion plotting of graph in R in the group Data Mining
"You can use more conditions in the subsetting. e.g. RateA[RateA >40 & RateB < 40 & RateB > 40 & RateB<50] You didn't tell us anything about your problem. What is the target variable? Regression methods are for numeric…"
Jul 27, 2012
jadelim replied to jadelim's discussion plotting of graph in R in the group Data Mining
"Hi. What if for now i would like to plot the Rate between 40 to 50. How do I type the command. I'm a little confused by the operators to use for between.  Also, other than linear regression. I can also use association or classification…"
Jul 26, 2012
Margot Tollefson replied to jadelim's discussion plotting of graph in R in the group Data Mining
"I think that the following command that will do the plot,   plot(RateA[RateA<150 & RateB<150], RateB[RateA<150 & RateB<150], data=data.table) .   I am not sure if you can use the data=data.table in plot the same…"
Jul 25, 2012
Balázs Bárány replied to jadelim's discussion plotting of graph in R in the group Data Mining
"Hi! Yes, this is exactly how you use linear regression to analyse the (linear) relationship between two variables.  The most interesting output from summary() is the (Intercept) line and the one below that, starting with RateB. The Estimate…"
Jul 25, 2012
jadelim replied to jadelim's discussion plotting of graph in R in the group Data Mining
"i have one command here doing with lm. >attach(data.table) >plot(RateA, RateB) >ahmetrics = lm(RateA~RateB) >summary(ahmetrics)  >abline(ahmetrics) the above command can find the relationship between RateA and RateB? this is…"
Jul 25, 2012
Balázs Bárány replied to jadelim's discussion plotting of graph in R in the group Data Mining
"rnorm(50) gives you 50 random numbers. It was an attempt to create a dataset that has the same structure as your dataset. You can't plot vectors with differing lengths. This is why the plot(ra, rb) command fails. Your original attempt, if it…"
Jul 24, 2012

plotting of graph in R

Hi all. I would like to plot a graph maybe Rate A against Rate B. however I only wants the value less than 150. I tried using the command however the outcome wasn't what i expected. > plot(data.table\$RateA >150, data.table\$RateB > 150) any help?See More
Jul 24, 2012
jadelim replied to jadelim's discussion plot a graph by first letter of variable in R in the group Data Mining
"Hi Gen!  Another scenario was what if i wants to plot only variable that is less than 200? I used the plot(data.table\$money > 200) however I felt that it wasn't the graph i wanted. any help?"
Jul 22, 2012
"See http://rexeranalytics.com/Data-Miner-Survey-Results-2010.html ;. Next survey will be in early 2013."
Jul 19, 2012
Gen KOBAYASHI replied to jadelim's discussion plot a graph by first letter of variable in R in the group Data Mining
"I just drop an one of examples to do it. Assuming "testdata.csv" has CSV format data. --  dat <- read.csv("testdata.csv")dat\$Name.first <- toupper(substr(dat\$Name,1,1)) # extract first letter into…"
Jul 12, 2012
jadelim replied to jadelim's discussion plot a graph by first letter of variable in R in the group Data Mining
"I do have more than 200 names. The example stated above is just an example. I have more than 1000 names in my database. Do you have any idea how to plot the graph base on first letter of the name?"
Jul 12, 2012
Amy replied to jadelim's discussion plot a graph by first letter of variable in R in the group Data Mining
"I am assuming that you have more than 200 names, otherwise your analysis would be weak. Better, if you have 5000 names broken down per country, then you could provide great visual insights."
Jul 12, 2012

plot a graph by first letter of variable in R

Hi all, I am very new to R and is not familiar with R scripting.may i know is it possible to plot a graph by first letter? for example: Name:                       Age: Angel                        20 Amelia                      20 Bernard                     19 Stephanie                  20 Vanessa                    22 Angeline                   23 Camel                       21 If I want to plot the name started with letter 'A' and their Age, how is it possible to plot it? Thanks.See More
Jul 12, 2012
jadelim replied to jadelim's discussion How to get R started in the group Data Mining
"Hi, I wanted to connect a Microsoft Access database to R. However I kept on facing error? Is there anyway i can connect the access file to R?"
Jul 10, 2012
Sean Flanigan replied to jadelim's discussion How to get R started in the group Data Mining
"you can get these commands for imports and many other base functiins using the menus in r studio, it is not as humdrum as pure cli and lets you manage object."
Jul 6, 2012

Profile Information

Field of Expertise:
Data Mining
Professional Status:
Student

Comment Wall

Join AnalyticBridge

1

2

3

4

5

6

7

8

9

10