by Suf | Sep 14, 2024 | Finance, Programming, Python, Tips
Introduction If you are working with financial data, you may have come across Quandl, a popular platform for accessing historical financial data and economic information. While working on a Python project that uses the Quandl API, you might encounter an error that...
by Suf | Sep 14, 2024 | Programming, R, Tips
When working with ggplot2 in R, you may encounter the error ‘ggplot2 doesn’t know how to deal with data of class character’. This error typically occurs when trying to pass character data to a function that expects a different data type, such as...
by Suf | Sep 11, 2024 | Pandas, Programming, Python, Tips
When working with Pandas, it’s common to face an error like AttributeError: ‘Series’ object has no attribute ‘colNames’. This blog post will explore this error, why it occurs, and how to use the apply() function to avoid or fix it. What is the...
by Suf | Jul 17, 2023 | Programming, R, Tips
When working with plots in R, you can face the error: Error in plot.new() figure margins too large. This error occurs when there is not enough space for the plot due to the size of the margins compared to the plotting window. Fortunately, there are straightforward...
by Suf | Oct 31, 2022 | Programming, R, Tips
This warning occurs when you use the dcast function to convert a data frame from long to wide format, but more than one value can be placed in the individual output cells of the wide data frame. You can stop this warning from occurring by specifying the aggregate...
by Suf | Oct 19, 2022 | C++, Finance, Programming, Tips
Implied volatility tells us the expected volatility of a stock over an option’s lifetime. Implied volatility is directly influenced by the supply and demand of the options and the market’s expectation of the direction of the price of the underlying security. As...
