[R] dir and pattern = ".r"

[Jeremie Juste]

Hello,

you need
> dir(pattern="\\.r$",ignore.case=TRUE)
remember that the pattern is a regular expression.
so ".r" is [any single character]r. So basically it will give you any
file that contains r (but not that starts with r)


so you got what you expected with
>  dir(pattern=".txt")
just by chance. as <rtxt.r> or <rtxt.pdf>  would have been printed as well

HTH,

Jeremie


> I have this directory contain listed at the page bottom
>
> Can somebody tell me why with
>
> dir(pattern = ".txt")
>
> dir(pattern = ".dbf")
>
> etc.
>
> I get exactly what I want (a vector with the file names correctly 
> suffixed), but with
>
> dir(pattern = ".r")
>
> I get this:
>
>> dir(pattern=".r") [1] "Article Predation" "BD Carto" [3] "broma1.txt" 
> "broma3.txt" [5] "BromaBusesMilanMicha.xlsx" "Bromadiolone" [7] 
> "BufferRenard.dbf" "BufferRenard.prj" [9] "BufferRenard.shp" 
> "BufferRenard.shx" [11] "clpboard" "DatesDiurnes.txt" [13] 
> "DatesDiurnes_plus.txt" "DatesDiurnes_plus.xlsx" [15] 
> "DatesDiurnesFREDON" "DatesDiurnesFREDON_plus.txt" [17] 
> "DatesDiurnesFREDON_plus.xlsx" "DatesDiurnesRegis.txt" [19] 
> "DatesDiurnesRegis_plus.txt" "DatesDiurnesRegis_plus.xlsx" [21] 
> "DatesNocturnes.txt" "DatesNocturnes_plus.txt" [23] 
> "DatesNocturnes_plus.xlsx" "DatesNocturnesFREDON" [25] 
> "DatesNocturnesFREDON_plus.txt" "DatesNocturnesFREDON_plus.xlsx" [27] 
> "DatesNocturnesRegis.txt" "DatesNocturnesRegis_plus.txt" [29] 
> "DatesNocturnesRegis_plus.xlsx" "Figures" [31] "ParcBuf300n.dbf" 
> "ParcBuf300n.prj" [33] "ParcBuf300n.shp" "ParcBuf300n.shx" [35] 
> "ParcBuf350n.dbf" "ParcBuf350n.prj" [37] "ParcBuf350n.shp" 
> "ParcBuf350n.shx" [39] "Script_190517_preparation.r" 
> "Script_190518_scores_AT.r" [41] "Script_190519_1430_cinetiques_IKA.r" 
> "Script_190519_1622_transects_camp.r" [43] 
> "Script_190530_1700_preparation2.r" 
> "Script_190530_1903_cinetiques_IKA2.r" [45] 
> "Script_190531_0922_scores_AT2.r" "Script_190531_1729_prey_resource.r" 
> [47] "Script_190601_1509_graphIKAd.r" 
> "Script_190601_1509_graphIKAd_old.r" [49] 
> "Script_190601_1509_graphIKAn.r" "Script_190601_1509_graphIKAn_old.r" 
> [51] "Script_190601_1955_spatial.r" "Script_190708_0930_distance.r" [53] 
> "Script_190709_0930_impact renard.r" 
> "Script_200117_cinetiques_article.r" [55] 
> "Script_200119_source_stats_explore_diurne.r" "Script_200119_stats.r" 
> [57] "Script_200122_spatial_distribution.r" "Script_200124_distance.r" 
> [59] "Script_200124_distance_source_d.r" 
> "Script_200124_distance_source_n.r" [61] 
> "Script_200201_impacts_on_prey.R" "ScriptCompteLignes.r" [63] 
> "Scripts_avant_200112.zip" "shinyPred" [65] "StudyArea.dbf" 
> "StudyArea.prj" [67] "StudyArea.shp" "StudyArea.shx" [69] 
> "SurfaceZoneEtude.dbf" "SurfaceZoneEtude.prj" [71] 
> "SurfaceZoneEtude.shp" "SurfaceZoneEtude.shx" [73] "transects_camp.Rdata"
>
> How can I get all the files, only these files, suffixed with ".r" ?
>
> Thanks in advance,
>
> ------------------------------------------------------------------------
>
>> dir() [1] "Analyse_190523_baseline_190523_1506.docx" 
> "Analyse_190523_baseline_190531_2110.docx" [3] 
> "Analyse_190523_baseline_190531_2110.Rmd" "Analyse_190531_baseline.docx" 
> [5] "Analyse_190531_baseline.Rmd" "Analyse_190531_baseline_cache" [7] 
> "Analyse_190531_baseline_files" "Analyse_190603_spatial.docx" [9] 
> "Analyse_190603_spatial.Rmd" "Analyse_190603_spatial_cache" [11] 
> "Analyse_190603_spatial_files" "Article Predation" [13] "BD Carto" 
> "Biblio" [15] "broma1.txt" "broma3.txt" [17] "BromaBusesMilanMicha.xlsx" 
> "Bromadiolone" [19] "BufferRenard.dbf" "BufferRenard.prj" [21] 
> "BufferRenard.shp" "BufferRenard.shx" [23] "clpboard" "DatesDiurnes.txt" 
> [25] "DatesDiurnes_plus.txt" "DatesDiurnes_plus.xlsx" [27] 
> "DatesDiurnesFREDON" "DatesDiurnesFREDON_plus.txt" [29] 
> "DatesDiurnesFREDON_plus.xlsx" "DatesDiurnesRegis.txt" [31] 
> "DatesDiurnesRegis_plus.txt" "DatesDiurnesRegis_plus.xlsx" [33] 
> "DatesNocturnes.txt" "DatesNocturnes_plus.txt" [35] 
> "DatesNocturnes_plus.xlsx" "DatesNocturnesFREDON" [37] 
> "DatesNocturnesFREDON_plus.txt" "DatesNocturnesFREDON_plus.xlsx" [39] 
> "DatesNocturnesRegis.txt" "DatesNocturnesRegis_plus.txt" [41] 
> "DatesNocturnesRegis_plus.xlsx" "Figures" [43] "IKAZ_old.zip" 
> "IKAZ1999.txt" [45] "IKAZ2000.txt" "IKAZ2007.txt" [47] "IKAZ2008.txt" 
> "IKAZ2009.txt" [49] "IKAZ2010.txt" "IKAZ2011.txt" [51] "IKAZ2012.txt" 
> "IKAZ2013.txt" [53] "IKAZ2014.txt" "IKAZ2015.txt" [55] "IKAZ2016.txt" 
> "IKAZ2017.txt" [57] "IKAZ2018.txt" "ParcBuf300n.dbf" [59] 
> "ParcBuf300n.prj" "ParcBuf300n.shp" [61] "ParcBuf300n.shx" 
> "ParcBuf350n.dbf" [63] "ParcBuf350n.prj" "ParcBuf350n.shp" [65] 
> "ParcBuf350n.shx" "Photos ZELAC" [67] "plot.ds.R" "plot.dsmodel.R" [69] 
> "RData" "Script_190517_preparation.r" [71] "Script_190518_scores_AT.r" 
> "Script_190519_1430_cinetiques_IKA.r" [73] 
> "Script_190519_1622_transects_camp.r" 
> "Script_190530_1700_preparation2.r" [75] 
> "Script_190530_1903_cinetiques_IKA2.r" "Script_190531_0922_scores_AT2.r" 
> [77] "Script_190531_1729_prey_resource.r" 
> "Script_190601_1509_graphIKAd.r" [79] 
> "Script_190601_1509_graphIKAd_old.r" "Script_190601_1509_graphIKAn.r" 
> [81] "Script_190601_1509_graphIKAn_old.r" "Script_190601_1955_spatial.r" 
> [83] "Script_190708_0930_distance.r" "Script_190709_0930_impact 
> renard.r" [85] "Script_200117_cinetiques_article.r" 
> "Script_200119_source_stats_explore_diurne.r" [87] 
> "Script_200119_stats.r" "Script_200122_spatial_distribution.r" [89] 
> "Script_200124_distance.r" "Script_200124_distance_source_d.r" [91] 
> "Script_200124_distance_source_n.r" "Script_200201_impacts_on_prey.R" 
> [93] "ScriptCompteLignes.r" "Scripts_avant_200112.zip" [95] "shinyChim" 
> "ShinyConnect.R" [97] "shinyPred" "StudyArea.dbf" [99] "StudyArea.prj" 
> "StudyArea.shp" [101] "StudyArea.shx" "SurfaceZoneEtude.dbf" [103] 
> "SurfaceZoneEtude.prj" "SurfaceZoneEtude.shp" [105] 
> "SurfaceZoneEtude.shx" "transects_camp.Rdata"
>
> 	[[alternative HTML version deleted]]
>
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