search for: philipsmith

...ux machine? If I knew this, I could write my code in a way so that I didn't have to adjust path names to data file all the time. I checked the archives... didn't find anything, but perhaps didn't know the right search terms... Thanks for your help, R-community! Please respond to: philipsmith at alumni.albany.edu Best regards, Phil Smith Duluth, GA

...ve a matrix, named "mat," of numeric values that are in days since Jan 1, 1960. I want to convert them Date class values so that I can do things like seq( value , len=10, by="1 week") where "value" is any of the matrix elements. How do I do this? Please reply to: philipsmith at alumni.albany.edu Thanks! Phil Smith Duluth, GA

...dresses in either km or miles. I do not care if the distance is a "shortest driving route" or if it is "as the crow flies." Does anybody know how to do this? Can it be done in R? I have thousands of addresses, so I think that Mapquest is out of the question! Please rely to: philipsmith at alumni.albany.edu Thank you! Phil Smith

...her attributes attached to it and calculate distances because it "knows" coordinates, a network of roads and so on. I am not sure this helps but at least maybe gives you some ideas where to look next. Monica Message: 53Date: Thu, 06 Sep 2007 14:42:32 -0400From: Philip James Smith <philipsmith@alumni.albany.edu>Subject: [R] computing distance in miles or km between 2 streetaddressesTo: r-help@stat.math.ethz.chMessage-ID: <46E04A18.7040909@alumni.albany.edu>Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi R-ers: I need to compute the distance between 2 street addres...

Hi R Community: I want to take the difference in two dates: dt2 - dt1. But, I want the answer in months between those 2 dates. Can you advise me? Please respond to: pzs6 at cdc.gov Thank you! Phil Smith Centers for Disease Control and Prevention

On Sun, 28 Jan 2018, phil at philipsmith.ca wrote: > I have a data set with quarterly time series for several variables. The > time index is recorded in column 1 of the dataframe as a character > vector "Q1 1961", "Q2 1961","Q3 1961", "Q4 1961", "Q1 1962", etc. I want > to...

I have a data set with quarterly time series for several variables. The time index is recorded in column 1 of the dataframe as a character vector "Q1 1961", "Q2 1961","Q3 1961", "Q4 1961", "Q1 1962", etc. I want to produce line plots with ggplot2, but it seems I need to convert the time index from character to date class. Is that right? If so, how

...a function used to transform the index column and format is also passed to FUN. z <- read.zoo(d, index = "time", FUN = as.yearqtr, format = "Q%q %Y") On Sun, Jan 28, 2018 at 4:53 PM, Achim Zeileis <Achim.Zeileis at uibk.ac.at> wrote: > On Sun, 28 Jan 2018, phil at philipsmith.ca wrote: > >> I have a data set with quarterly time series for several variables. The >> time index is recorded in column 1 of the dataframe as a character vector >> "Q1 1961", "Q2 1961","Q3 1961", "Q4 1961", "Q1 1962", etc. I...

Hi R people: I have huge files with as many as 5000 columns. I'd really like to read only certain columns of those files. I know column names I want to read. I looked at the documentation of read.csv . Although there is a col.names option, it allows users to specify the names of the columns, rather than to pick the columns of interest. Any suggestions on how to pick the columns I want to

Hi R Community: I've got a character string that looks like: New Mexico How to I create the new character string that looks like: "New Mexico" That is, it is the original string (New Mexico) with double quotes infront and behind it? Thanks, Phil Smith

Hi R-Community: Here is what I want to do: Every time I start R I want R to: 1. remove(list=ls()), and 2. "source" another file automatically. Then, when I shutdown R, I want R to: 1. remove(list=ls()) How do I do this? I recall vaguely that S could do this, but I don't remember exactly how it worked. Thanks for your help! Phil Smith