Inès François

8 Questions 71 Answers 0 Followers

Questions related from Inès François

How to merge datasets in R by row including only matching records?

Good morning, I have two datasets with the exact same columns. I would like to select rows that have a matching ID between the two datasets (Please, see tables below).I tried to merge datasets...

12 January 2024 1,558 3 View

How do you handle with missing data in time series?

Good morning, for my research project, I am using school meal data selection. I would like to investigate the children's food selection patterns using multiple time series using the K-means...

03 October 2023 2,801 6 View

With a big dataset including only categorical variable, what is the acceptable rate of missing values?

Good afternoon, During the data quality stage, if your dataset includes only categorical variables and as a result, you cannot use imputation methods, to which degree do you judge that the quality...

01 June 2023 3,252 1 View

To investigate and to predict a binary variable, do you use Logistic Regressions or Gradient Boosting Models?

Good afternoon, I would like to share a quick survey. For inference and predictive models with a binary variable, do you prefer to use Binary Logistic Regressions Models or Gradient Boosting...

20 April 2023 3,673 3 View

For a K-mean cluster analysis, when variables are percentages have we to use n-1 variables?

Good morning, I would like to share this question. I am conducting a K-mean clustering analysis. My aim is to investigate if I can observe some patterns of food consumption. For my dataset, each...

07 December 2022 4,325 1 View

Threshold silhouette score for cluster analysis

Good afternoon, The silhouette score is between 0 and 1 and the closer to 1 is, the better the quality of the cluster is. From which threshold, can we say that the quality of cluster is...

01 January 1970 9,427 3 View

How do you present the data cleaning stage in academic report?

Good afternoon, I am thinking about how I can present the data cleaning stage of my research project. I am hesitating between generating a summary table (could be complex because it includes 16...

01 January 1970 4,450 3 View

Report variables and their levels in academic writing

Good morning Are there writing conventions in academic writing to report a variable and levels of these variables? Thanks

01 January 1970 3,962 1 View