When you work with sparse matrix data structure with SciPy in Python, sometimes you might want to visualize the sparse matrix. A quick visualization can reveal the pattern in the sparse matrix and can tell how “sparse” the matrix is. And it is a great sanity check. One way to visualize sparse matrix is to […]
How To Make Grouped Boxplots with ggplot2?
Boxplots are great to visualize distributions of multiple variables. ggplot2 is great to make beautiful boxplots really quickly. Sometimes, you may have multiple sub-groups for a variable of interest. In those situation, it is very useful to visualize using “grouped boxplots”. In R, ggplot2 package offers multiple options to visualize such grouped boxplots. Let us […]
How To Create Random Sparse Matrix of Specific Density?
Sometimes, you may want to create sparse random matrices with specific shape and sparsity for testing out a new method or algorithm. Scipy’s sparse module has very useful functionalities that are of great use to create sparse matrices of specific density and from specific probability distributions. Let us see some simple examples of create random […]
How To Reorder a Boxplot in R? Hint: Use forcats
Sometimes, when one is making boxplot with ggplot2, one might like to order the boxes in a boxplot in a specific way. For example, one might want to sort the boxes in boxplot in ascending or descening order based on the mean or median values of groups in the boxplot. Reordering boxplots can reveal the […]
9 Ways To Create New Variables with tidyverse
When one wants to create a new variable in R using tidyverse, dplyr’s mutate verb is probably the easiest one that comes to mind that lets you create a new column or new variable easily on the fly. It is probably the go to command for every time one needed to make new variable for […]