Posts by Joyce Maia • 387 points
9 posts
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2
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answer112
viewsQ: Calling Loops dataframes in R
I have a series of data frames, which I will work on several times in some loops. The problem I find is that I cannot "call them" correctly to perform other actions, comparisons, etc. My code: list…
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3
votes1
answer101
viewsQ: Bootstrap in linear regression model - Calculating the importance of variables
I’m calculating the importance of variables for multiple regression with function varImp package caret. But when doing hair using function and bootstrap I cannot recover the values as I got for R².…
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votes2
answers74
viewsQ: Separate a datraframe in subdatraframes based on a condition
I would like to generate subsets of a dataframe via loop. However, when executing this code I do not get the 5 objects. list <- list("CO", "N", "NE", "S", "SE") for (i in list) { df_name <-…
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2
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answers396
viewsQ: Limit use of RAM in R
I’m running some analysis and would like to fix the use of RAM in R to be able to use other software simultaneously without any problem. So I’d like to, for example, limit the 4gb of RAM memory,…
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4
votes1
answer113
viewsQ: Use regression residues to calculate another regression (within the function) in R
I’m using a function to calculate regressions. I need the residues of a specific relation to relate to another variable. However I need the waste to be calculated according to Facet grid. Thus, for…
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2
votes1
answer596
viewsQ: Unify column the dataset and place this content below a table
I have table I have a column that is a data set I need to separate this data and unify the "standard columns". I’ve managed to separate the contents of the column by staying this way: nrow temp area…
rasked Joyce Maia 387 -
8
votes3
answers7816
viewsQ: Separate contents from one column in other columns
I have a file in table form. I need to separate the contents of a specific column in other columns, the data are separated by ;. Well I managed to do this, but the problem is that the content will…
rasked Joyce Maia 387 -
4
votes2
answers2923
viewsQ: Comparing contents of a Column
I’m a beginner in R and needed help comparing column content. First I sorted my table according to a specific column. For this I used the following function: x = fread ("x.txt",sep=";") x_ordenado =…
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1
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answers175
viewsQ: ANCOVA with curve homogeneity test
I’m doing some analysis of ANCOVA, but I don’t know if I’m not able to interpret the results. I understand that an ANCOVA would be an ANOVA along with regressions. But I need a test for homogeneity…
regressionasked Joyce Maia 387