[R] Fwd: Re: transpose and split dataframe
Jim Lemon
drj|m|emon @end|ng |rom gm@||@com
Fri May 3 02:32:39 CEST 2019
Hi Matthew,
I'm not sure whether you want something like your initial request or
David's solution. The result of this can be transformed into the
latter:
mmdf<-read.table(text="Regulator hits
AT1G69490 AT4G31950,AT5G24110,AT1G26380,AT1G05675,AT3G12910,AT5G64905,AT1G22810,AT1G79680,AT3G02840,AT5G25260,AT5G57220,AT2G37430,AT2G26560,AT1G56250,AT3G23230,AT1G16420,AT1G78410,AT4G22030,AT5G05300,AT1G69930,AT4G03460,AT4G11470,AT5G25250,AT5G36925,AT2G30750,AT1G16150,AT1G02930,AT2G19190,AT4G11890,AT1G72520,AT4G31940,AT5G37490,AT5G52760,AT5G66020,AT3G57460,AT4G23220,AT3G15518,AT2G43620,AT2G02010,AT1G35210,AT5G46295,AT1G17147,AT1G11925,AT2G39200,AT1G02920,AT2G40180,AT1G59865,AT4G35180,AT4G15417,AT1G51820,AT1G06135,AT1G36622,AT5G42830
AT1G29860 AT4G31950,AT5G24110,AT1G05675,AT3G12910,AT5G64905,AT1G22810,AT1G14540,AT1G79680,AT1G07160,AT3G23250,AT5G25260,AT1G53625,AT5G57220,AT2G37430,AT3G54150,AT1G56250,AT3G23230,AT1G16420,AT1G78410,AT4G22030,AT1G69930,AT4G03460,AT4G11470,AT5G25250,AT5G36925,AT4G14450,AT2G30750,AT1G16150,AT1G02930,AT2G19190,AT4G11890,AT1G72520,AT4G31940,AT5G37490,AT4G08555,AT5G66020,AT5G26920,AT3G57460,AT4G23220,AT3G15518,AT2G43620,AT1G35210,AT5G46295,AT1G17147,AT1G11925,AT2G39200,AT1G02920,AT4G35180,AT4G15417,AT1G51820,AT4G40020,AT1G06135
AT1G2986 AT5G64905,AT1G21120,AT1G07160,AT5G25260,AT1G53625,AT1G56250,AT2G31345,AT4G11170,AT1G66090,AT1G26410,AT3G55840,AT1G69930,AT4G03460,AT5G25250,AT5G36925,AT1G26420,AT5G42380,AT1G16150,AT2G22880,AT1G02930,AT4G11890,AT1G72520,AT5G66020,AT2G43620,AT2G44370,AT4G15975,AT1G35210,AT5G46295,AT1G11925,AT2G39200,AT1G02920,AT4G14370,AT4G35180,AT4G15417,AT2G18690,AT5G11140,AT1G06135,AT5G42830",
header=TRUE,stringsAsFactors=FALSE)
# split the second column at the commas
hitsplit<-strsplit(mmdf$hits,",")
# define a function that will fill with NAs
NAfill<-function(x,n) return(x[1:n])
# get the maximum length of hits
maxlen<-max(unlist(lapply(hitsplit,length)))
# fill the list with NAs
hitsplit<-lapply(hitsplit,NAfill,maxlen)
# get all the sorted hits
allhits<-sort(unique(unlist(hitsplit)))
tmmdf<-as.data.frame(matrix(NA,ncol=length(hitsplit),nrow=length(allhits)))
# change the names of the list
names(tmmdf)<-mmdf$Regulator
# replace all NA values in tmmdf where they appear in hitsplit
for(column in 1:length(hitsplit)) {
hitmatches<-match(hitsplit[[column]],allhits)
hitmatches<-hitmatches[!is.na(hitmatches)]
tmmdf[hitmatches,column]<-allhits[hitmatches]
}
Jim
On Fri, May 3, 2019 at 12:43 AM David L Carlson <dcarlson using tamu.edu> wrote:
>
> We still have only the toy version of your data from your first email. The second email used dput() as I suggested, but you truncated the results so it is useless for testing purposes.
>
> Use the following code after creating DataList (up to mx <- ... ) in my earlier answer:
>
> n <- sapply(DataList, length)
> hits <- unname(unlist(DataList))
> Regulator <- unname(unlist(mapply(rep, names(DataList), times=n)))
> DataTable <- table(hits, Regulator)
>
> # Regulator
> # hits AT1G69490 AT2G55980
> # AT1G05675 1 0
> # AT1G26380 1 0
> # AT2G85403 0 1
> # AT4G31950 1 0
> # AT4G89223 0 1
> # AT5G24110 1 0
>
> Now the Regulators and the hits will be listed in alphabetical order. The table has 0's for Regulators that do not have a particular hit. If you want NAs:
>
> DataTable[DataTable==0] <- NA
> print(DataTable, na.print="NA")
> # Regulator
> # hits AT1G69490 AT2G55980
> # AT1G05675 1 NA
> # AT1G26380 1 NA
> # AT2G85403 NA 1
> # AT4G31950 1 NA
> # AT4G89223 NA 1
> # AT5G24110 1 NA
>
> If you need a data frame instead of a table:
>
> as.data.frame.matrix(DataTable)
>
> ----------------------------------------
> David L Carlson
> Department of Anthropology
> Texas A&M University
> College Station, TX 77843-4352
>
> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Matthew
> Sent: Tuesday, April 30, 2019 4:31 PM
> To: r-help using r-project.org
> Subject: [R] Fwd: Re: transpose and split dataframe
>
> Thanks for your reply. I was trying to simplify it a little, but must
> have got it wrong. Here is the real dataframe, TF2list:
>
> str(TF2list)
> 'data.frame': 152 obs. of 2 variables:
> $ Regulator: Factor w/ 87 levels "AT1G02065","AT1G13960",..: 17 6 6 54
> 54 82 82 82 82 82 ...
> $ hits : Factor w/ 97 levels
> "AT1G05675,AT3G12910,AT1G22810,AT1G14540,AT1G21120,AT1G07160,AT5G22520,AT1G56250,AT2G31345,AT5G22530,AT4G11170,A"|
> __truncated__,..: 65 57 90 57 87 57 56 91 31 17 ...
>
> And the first few lines resulting from dput(head(TF2list)):
>
> dput(head(TF2list))
> structure(list(Regulator = structure(c(17L, 6L, 6L, 54L, 54L,
> 82L), .Label = c("AT1G02065", "AT1G13960", "AT1G18860", "AT1G23380",
> "AT1G29280", "AT1G29860", "AT1G30650", "AT1G55600", "AT1G62300",
> "AT1G62990", "AT1G64000", "AT1G66550", "AT1G66560", "AT1G66600",
> "AT1G68150", "AT1G69310", "AT1G69490", "AT1G69810", "AT1G70510", ...
>
> This is another way of looking at the first 4 entries (Regulator is
> tab-separated from hits):
>
> Regulator
> hits
> 1
> AT1G69490
> AT4G31950,AT5G24110,AT1G26380,AT1G05675,AT3G12910,AT5G64905,AT1G22810,AT1G79680,AT3G02840,AT5G25260,AT5G57220,AT2G37430,AT2G26560,AT1G56250,AT3G23230,AT1G16420,AT1G78410,AT4G22030,AT5G05300,AT1G69930,AT4G03460,AT4G11470,AT5G25250,AT5G36925,AT2G30750,AT1G16150,AT1G02930,AT2G19190,AT4G11890,AT1G72520,AT4G31940,AT5G37490,AT5G52760,AT5G66020,AT3G57460,AT4G23220,AT3G15518,AT2G43620,AT2G02010,AT1G35210,AT5G46295,AT1G17147,AT1G11925,AT2G39200,AT1G02920,AT2G40180,AT1G59865,AT4G35180,AT4G15417,AT1G51820,AT1G06135,AT1G36622,AT5G42830
> 2
> AT1G29860
> AT4G31950,AT5G24110,AT1G05675,AT3G12910,AT5G64905,AT1G22810,AT1G14540,AT1G79680,AT1G07160,AT3G23250,AT5G25260,AT1G53625,AT5G57220,AT2G37430,AT3G54150,AT1G56250,AT3G23230,AT1G16420,AT1G78410,AT4G22030,AT1G69930,AT4G03460,AT4G11470,AT5G25250,AT5G36925,AT4G14450,AT2G30750,AT1G16150,AT1G02930,AT2G19190,AT4G11890,AT1G72520,AT4G31940,AT5G37490,AT4G08555,AT5G66020,AT5G26920,AT3G57460,AT4G23220,AT3G15518,AT2G43620,AT1G35210,AT5G46295,AT1G17147,AT1G11925,AT2G39200,AT1G02920,AT4G35180,AT4G15417,AT1G51820,AT4G40020,AT1G06135
>
> 3
> AT1G2986
> AT5G64905,AT1G21120,AT1G07160,AT5G25260,AT1G53625,AT1G56250,AT2G31345,AT4G11170,AT1G66090,AT1G26410,AT3G55840,AT1G69930,AT4G03460,AT5G25250,AT5G36925,AT1G26420,AT5G42380,AT1G16150,AT2G22880,AT1G02930,AT4G11890,AT1G72520,AT5G66020,AT2G43620,AT2G44370,AT4G15975,AT1G35210,AT5G46295,AT1G11925,AT2G39200,AT1G02920,AT4G14370,AT4G35180,AT4G15417,AT2G18690,AT5G11140,AT1G06135,AT5G42830
>
> So, the goal would be to
>
> first: Transpose the existing dataframe so that the factor Regulator
> becomes a column name (column 1 name = AT1G69490, column2 name
> AT1G29860, etc.) and the hits associated with each Regulator become
> rows. Hits is a comma separated 'list' ( I do not not know if
> technically it is an R list.), so it would have to be comma
> 'unseparated' with each entry becoming a row (col 1 row 1 = AT4G31950,
> col 1 row 2 - AT5G24410, etc); like this :
>
> AT1G69490
> AT4G31950
> AT5G24110
> AT1G05675
> AT5G64905
>
> ... I did not include all the rows)
>
> I think it would be best to actually make the first entry a separate
> dataframe ( 1 column with name = AT1G69490 and number of rows depending
> on the number of hits), then make the second column (column name =
> AT1G29860, and number of rows depending on the number of hits) into a
> new dataframe and do a full join of of the two dataframes; continue by
> making the third column (column name = AT1G2986) into a dataframe and
> full join it with the previous; continue for the 152 observations so
> that then end result is a dataframe with 152 columns and number of rows
> depending on the entry with the greatest number of hits. The full joins
> I can do with dplyr, but getting up to that point seems rather difficult.
>
> This would get me what my ultimate goal would be; each Regulator is a
> column name (152 columns) and a given row has either NA or the same hit.
>
> This seems very difficult to me, but I appreciate any attempt.
>
> Matthew
>
> On 4/30/2019 4:34 PM, David L Carlson wrote:
> > External Email - Use Caution
> >
> > I think we need more information. Can you give us the structure of the data with str(YourDataFrame). Alternatively you could copy a small piece into your email message by copying and pasting the results of the following code:
> >
> > dput(head(YourDataFrame))
> >
> > The data frame you present could not be a data frame since you say "hits" is a factor with a variable number of elements. If each value of "hits" was a single character string, it would only have 2 factor levels not 6 and your efforts to parse the string would make more sense. Transposing to a data frame would only be possible if each column was padded with NAs to make them equal in length. Since your example tries use the name TF2list, it is possible that you do not have a data frame but a list and you have no factor levels, just character vectors.
> >
> > If you are not familiar with R, it may be helpful to tell us what your overall goal is rather than an intermediate step. Very likely R can easily handle what you want by doing things a different way.
> >
> > ----------------------------------------
> > David L Carlson
> > Department of Anthropology
> > Texas A&M University
> > College Station, TX 77843-4352
> >
> >
> >
> > -----Original Message-----
> > From: R-help<r-help-bounces using r-project.org> On Behalf Of Matthew
> > Sent: Tuesday, April 30, 2019 2:25 PM
> > To: r-help (r-help using r-project.org)<r-help using r-project.org>
> > Subject: [R] transpose and split dataframe
> >
> > I have a data frame that is a lot bigger but for simplicity sake we can
> > say it looks like this:
> >
> > Regulator hits
> > AT1G69490 AT4G31950,AT5G24110,AT1G26380,AT1G05675
> > AT2G55980 AT2G85403,AT4G89223
> >
> > In other words:
> >
> > data.frame : 2 obs. of 2 variables
> > $Regulator: Factor w/ 2 levels
> > $hits : Factor w/ 6 levels
> >
> > I want to transpose it so that Regulator is now the column headings
> > and each of the AGI numbers now separated by commas is a row. So,
> > AT1G69490 is now the header of the first column and AT4G31950 is row 1
> > of column 1, AT5G24110 is row 2 of column 1, etc. AT2G55980 is header of
> > column 2 and AT2G85403 is row 1 of column 2, etc.
> >
> > I have tried playing around with strsplit(TF2list[2:2]) and
> > strsplit(as.character(TF2list[2:2]), but I am getting nowhere.
> >
> > Matthew
> >
> > ______________________________________________
> > R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help using 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.
> ______________________________________________
> R-help using 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.
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