Hi Anthony and Keith Weintraub, Here is a way to do what you are asking using the UScensus2010 packages:
## latest version of the package, not yet on CRAN install.packages("UScensus2010", repos="http://R-Forge.R-project.org") library(UScensus2010) install.blk() library(UScensus2010blk) ### You will want the H0010001 variable (see help(alabama.blk10)) ### Other variables are also available ### You can use the new api function in UScensus2010 to get arbitrary variables from SF1 and acs data(states.names) head(states.names) state.blk.housing<-vector("list",length(states.names)) ## notice this could be greatly spead up using the library(parallel) ## with mclapply ## This will be somewhat slow b/c of so much spatial data for(i in 1:length(states.names)){ data(list=paste(states.names[i],"blk10",sep=".")) temp<-get(paste(states.names[i],"blk10",sep=".")) #unique b/c more shapefiles than fips state.blk.housing[[i]]<-unique(temp@data[,c("fips","H0010001")]) print(i) rm(paste(states.names,"blk10",sep=".")) } ########### # alternatively Using the US Census API function in the new UScensus2010 package ########### ## Get all states fips code data(countyfips) state.fips<-unique(substr(countyfips$fips,1,2)) head(state.fips) length(state.fips) ## will be 51=50 (states)+ 1(DC) ## You will need a census key key<-"YOUR KEY HERE" housing<-CensusAPI2010(c("H0010001"), state.fips=state.fips, level = c("block"), key, summaryfile = c("sf1")) Best, -- Zack --------------------------------------------------------- Zack W. Almquist Assistant Professor Department of Sociology and School of Statistics Affiliate, Minnesota Population Center University of Minnesota On Mon, Aug 3, 2015 at 12:43 PM, Anthony Damico <ajdam...@gmail.com> wrote: > hi, ccing the package maintainer. one alternative is to pull the HU100 > variable directly from the census bureau's summary files: that variable > starts at position 328 and ends at 336. just modify this loop and you'll > get a table with one-record-per-census-block in every state. > > > https://github.com/davidbrae/swmap/blob/master/how%20to%20map%20the%20consumer%20expenditure%20survey.R#L104 > > (1) line 134 change the very last -9 to 9 > (2) line 137 between "pop100" and "intptlat" add an "hu100" > > > summary file docs- > > http://www.census.gov/prod/cen2010/doc/sf1.pdf#page=18 > > > > On Mon, Aug 3, 2015 at 11:55 AM, Keith S Weintraub <kw1...@gmail.com> > wrote: > >> Folks, >> >> I am using the UScensus2010 package and I am trying to figure out the >> number of households per census block. >> >> There are a number of possible data downloads in the package but >> apparently I am not smart enough to figure out which data-set is >> appropriate and what functions to use. >> >> Any help or pointers or links would be greatly appreciated. >> >> Thanks for your time, >> Best, >> KW >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.