This tutorial shows how to solve the problem that data analysis does not show up in Excel. That is, you click the “Data” tap, but you can not see find “Data Analysis” module. Steps of fixing “Data Analysis” not show up in Excel Step 1: Click “File” and “Options” Click “File” on the top and … Read more
This tutorial shows how you can calculate two-sample t-test and its p-value in Excel. This tutorial will include detailed examples and steps. Steps of Calculating two-sample t-test and p-value in Excel Step 1: Data used for t-test The following is the data used for t-test. The data are women and men’s attitudes toward a brand … Read more
This tutorial shows how you can calculate correlation coefficient and p-value in Excel. In particular, this tutorial will include data examples and calculation processes in Excel. Step 1: Data used for correlation analysis in Excel We are going to use the data used in another tutorial, namely temperature and iced coffee sales. We want to … Read more
This tutorial shows how you can print out the current working directory in Jupyter Notebook. In particular, you can use os.getcwd() to do it and this tutorial provides the complete Python code. In particular, the following is the Python code. The OS module provides functions for interacting with the operating system in Python and thus … Read more
This tutorial shows how to convert CSV file to Excel in Python with examples and detailed steps. The following shows the specific steps. Steps of Convert CSV to Excel in Python Step 1 Install Pandas Pandas is a commonly used Python package and we can use it to convert CSV to Excel files. If your … Read more
This tutorial shows how to convert list to string in Python with examples. Example 1 The following Python code first generate a sample list and then use join() to change the list to string. The following is the output. [‘a’, ‘b’, ‘c’, ‘d’] a b c d Example 2 When a list contains elements of … Read more
Naive versus Aware Datetime Objects in Python The Difference between Naive versus Aware Datetime Objects is on time zone information: naive datetime objects does not have information on the time zone, whereas timezone-Aware datetime objects associate with timezone information Example of Native Datetime Objects By default, datetime.now() does not return information about the time zones. The … Read more
This tutorial shows how to fix the error of has no attribute ‘dataframe’ in Python. The error could appear as follows. AttributeError: ‘int’ object has no attribute ‘DataFrame’ AttributeError: module ‘pandas’ has no attribute ‘dataframe’. Did you mean: ‘DataFrame’? AttributeError: partially initialized module ‘pandas’ has no attribute ‘DataFrame’ (most likely due to a circular import) … Read more
This tutorial shows how to remove rows with NA in one column in R. There are two R syntax to remove rows with NA in a single one column. # Use is.na() function dataframe_name[!is.na(dataframe_name$column_name),] # Use na.omit() function na.omit(dataframe_name, cols = “column_name”) Sample Data Frame Being Used The following R code to generate a sample … Read more
The main difference between interval and ratio data lies in the presence or absence of a meaningful zero point and the nature of the numerical values. Interval Data Interval data is a type of quantitative data where the intervals between values are equal and consistent. It has a numerical scale that represents the magnitude of … Read more