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Python to R translation of 30 essential Pandas methods introduced by Avi Chawla in The Only 30 Methods You Should Master To Become A Pandas Pro published on TowardsDataScience.
# enable python in RMarkdown
library(reticulate)We can use the `rename()`` method in Pandas to rename a column in a dataframe.
import pandas as pd
df = pd.DataFrame([[1, 2, "A"],
[5, 8, "B"],
[3, 10, "B"]],
columns = ["col1", "col2", "col3"])
df.rename(columns = {'col1': 'col1_new_name', 'col2': 'col2_new_name'}, inplace = False) # this doesn't change df unless we set inplace to be True col1_new_name col2_new_name col3
0 1 2 A
1 5 8 B
2 3 10 Bdf col1 col2 col3
0 1 2 A
1 5 8 B
2 3 10 BIn R there is a similar function rename(), just note that the sequance is new_name = old_name, not old_name : new_name as shown above in Python.
library(dplyr)
df <- py$df
df |>
rename(col1_new_name = col1,
col2_new_name = col2) col1_new_name col2_new_name col3
1 1 2 A
2 5 8 B
3 3 10 B
sessionInfo()R version 4.2.1 (2022-06-23 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 19043)
Matrix products: default
locale:
[1] LC_COLLATE=English_Australia.utf8 LC_CTYPE=English_Australia.utf8
[3] LC_MONETARY=English_Australia.utf8 LC_NUMERIC=C
[5] LC_TIME=English_Australia.utf8
attached base packages:
[1] stats graphics grDevices datasets utils methods base
other attached packages:
[1] dplyr_1.0.10 reticulate_1.26
loaded via a namespace (and not attached):
[1] Rcpp_1.0.9 pillar_1.8.1 compiler_4.2.1 bslib_0.4.0
[5] later_1.3.0 jquerylib_0.1.4 git2r_0.30.1 workflowr_1.7.0
[9] tools_4.2.1 digest_0.6.29 lattice_0.20-45 jsonlite_1.8.2
[13] evaluate_0.17 lifecycle_1.0.3 tibble_3.1.8 png_0.1-7
[17] pkgconfig_2.0.3 rlang_1.0.6 Matrix_1.4-1 DBI_1.1.3
[21] cli_3.4.1 rstudioapi_0.14 yaml_2.3.5 xfun_0.33
[25] fastmap_1.1.0 withr_2.5.0 stringr_1.4.1 knitr_1.40
[29] generics_0.1.3 fs_1.5.2 vctrs_0.4.2 sass_0.4.2
[33] tidyselect_1.2.0 grid_4.2.1 rprojroot_2.0.3 glue_1.6.2
[37] R6_2.5.1 fansi_1.0.3 rmarkdown_2.17 magrittr_2.0.3
[41] whisker_0.4 promises_1.2.0.1 htmltools_0.5.3 assertthat_0.2.1
[45] renv_0.16.0 httpuv_1.6.6 utf8_1.2.2 stringi_1.7.8
[49] cachem_1.0.6