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Recent questions tagged r

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Why does as.factor return a character when used inside apply?
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321 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - agrep: only return best match(es)
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420 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Change row order in a matrix/dataframe
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303 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Do you use attach() or call variables by name or slicing?
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259 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Using If/Else on a data frame
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320 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Add a row by reference at the end of a data.table object
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319 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Select every other element from a vector
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393 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - How do I change the color value of just one value in ggplot2's scale_fill_brewer?
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373 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Remove duplicates keeping entry with largest absolute value
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348 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Convert four digit year values to class Date
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439 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Extract a column from a data.table as a vector, by position
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280 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - How to parametrize function calls in dplyr 0.7?
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284 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - dplyr filter with condition on multiple columns
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413 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Remove columns from dataframe where some of values are NA
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555 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Convert NA into a factor level
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491 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Difference between passing options in aes() and outside of it in ggplot2
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441 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - ggplot centered names on a map
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377 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Connecting across missing values with geom_line
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574 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Download a file from HTTPS using download.file()
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349 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Extract names of objects from list
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369 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - dplyr::group_by_ with character string input of several variable names
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530 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - How do I override a non-visible function in the package namespace?
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303 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - predict.lm() with an unknown factor level in test data
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555 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - unique() for more than one variable
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330 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Why is the terminology of labels and levels in factors so weird?
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388 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Dynamic column names in data.table
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361 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - What's the use of which?
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229 views 1 answer
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
r - Pretty ticks for log normal scale using ggplot2 (dynamic not manual)
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536 views 1 answer
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