A user has 3 dataframes and he wants to re-organize by column order.How to do that?
Let us create 3 dataframes with desired values a
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Browse 123 R questions and answers from learners and industry experts. Find practical fixes, interview prep and step-by-step solutions - or ask your own.
Let us create 3 dataframes with desired values a
1 Answer · 699 Views · Answered ✓
Indexing is defined as selecting an element from a vector present in a particular index. In R, indexing starts from 1 and is denoted by [] bracket On…
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Apply() function works by considering input as a data frame or a matrix and gives an output as a vector, list or an array. apply() function basically…
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To do this we have to select a dataframe for selecting rows and columns. A data frame is a structure having 2 dimensions which contains data in the…
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To put all the fill ups, let assign it to a variable miles miles=c(65311,65624,65908,66219,66499,66821,67145,67447) x=diff(miles) X [1] 313 284 311…
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R programming language was developed in 1993 and is adopted largely in graphical and statistical analysis. It contains a lot of libraries which give…
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To grab a row or a column, we have to define a matrix.A matrix is usually an array of numbers or a mathematical object defined in a rectangular…
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For importing multiple CSV file we can use base R package and do the following files = list.files(pattern="*.csv") allfiles = lapply(files,…
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(1, 8, 2, 6, 3, 8, 5, 5, 5, 5) Let us assign to a variable x x=c(1, 8, 2, 6, 3, 8, 5, 5, 5, 5) To find out the log value of each element, we cna use…
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To select rows which contains ‘hesc’, we can do the following expr[expr$cell_type == "hesc", ] To select rows having either ‘hesc’ or ‘bj…
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To perform z- test, let us take data first. ############## 1 sample z test ########## fabric=read.csv(file.choose()) Fabric Here fabric is the…
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For extracting an element of a matrix,let us define a matrix along with row and column names Matrix
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