search for: krisviswanathan

Displaying 4 results from an estimated 4 matches for "krisviswanathan".

2012 Apr 03
1
Compare by row and insert previous row value (Or non Time Series Lag)
I have the following sample dataset (CSV input here:http://goo.gl/YR8LP. CSV output here: http://goo.gl/EFCC8) which I want to transform as follows. For each person in a household I want to create two new variables OrigTAZ and DestTAZ. It should take the value in TripendTAZ and put that in DestTAZ. For OrigTAZ it should put value of TripendTAZ from the previous row. For the first trip of every
2011 Feb 18
1
Using Weights in R
I am new to R. I have a data set like this (given below is a fictional dataset): AgeCat FINWT 1 98 2 62 1 75 3 39 4 28 2 47 2 66 4 83 1 19 3 50 I need to calculate the weighted distribution of the variable AgeCat. In SAS i can do: proc freq data=ageval; tables agecat; weight finwt; run; What or is there an equivalent in R? TIA, Krishnan -- Krishnan Viswanathan 1101 High Meadow Dr
2011 Oct 13
1
Axis Formats with library(car)
I am trying to develop scatter plots using library(car). However, the output I am getting shows the axis (x and y) in scientific notation. I want to have the axis represented by regular integers (for eg. the X axis i want the upper bound to show as 40,000,000 instead of 4.0e+07). Scanning the r-help archives did not get me the answer. I have uploaded my data here: http://bit.ly/olgMLt
2011 Feb 19
1
Conditional recoding
I am trying to recode a variable into another variable and while the package 'car' works well when it is only recoding A into B, I am not sure I can do the same with recoding (A or C) into B. If i can use recode please advise on how to. So i am using an if/else if conditions. My sample dataset is below along with the code and the warning and results i get. TIA Krishnan #****Code****