Using the subset() function When looking to create more complex subsets or a subset based on a condition, the next step up is to use the subset() function. For example, what if you wanted to look at debt from someone named Dan. You could just use the brackets to select their debt an...
#To print the range of salary packages range.sal <- range(read.data$empsalary) print(range.sal) Output: [1] 20000 36000 #To print the details of a person with the highest salary, we use the subset() function to extract variables and observations max.sal <- subset(read.data, empsalary...
We can also use the which function to extract certain columns of our data frame. In this case, we are using the colnames function and the %in%-operator to create our logical object:data[ , which(colnames(data) %in% c("x1", "x3"))] # Subset of example data columns # x1 x3 # 1 ...
Welcome to Part 2 of the “optimise your ROS snap” blog series. Make sure to check Part 1 before reading this blog post. This second part is going to present... Optimise your ROS snap – Part 1 Do you want to optimise the performance of your ROS snap? We reduced the size of the...
. . . Accessibility in MATLAB Online: Use a screen reader to create and edit live scripts and functions in the Live Editor . . . . . . . . . . . . . . . . . . . . . . . . . Add-Ons in MATLAB Online: Install and manage add-ons using Add-Ons panel . . . . . ....
be used to filter information using multiple conditions. For example, perhaps we would like to look at only observations taken with a late time value. This allows us to ignore the early “noise” in the data and focus our analysis on mature birds. Returning to the subset function, we ...
In the Subset (on the right side of the dialog box), choose Mathematical Operators. Find the square root symbol and click on it. Press Insert and click Close. Read More: How to Insert Degree Symbol in Excel Method 2 – Applying the Character Code from the Symbol Dialog Box to Insert th...
How to extract a time series subset in R?, This article will teach you how to use R’s window function to extract a time series subset. data <- data.frame(dates = seq(as.Date("2022-01-01"), by = "day", length.out = 10), values = 1:10) Now we can view the data frame ...
原文地址:https://flowingdata.com/2014/02/27/how-to-read-histograms-and-use-them-in-r/ The histogram is one of my favorite chart types, and for analysis pu
Method 3 – Use the UNICHAR Function to Insert a Sigma Symbol Steps: Select cellC5. Input the following formula. =UNICHAR(931) Hit theEnterorTabkey. Select cellC6. Enter the following formula. =UNICHAR(963) PressEnterorTab. Read More:How to Put a Plus Sign in Excel without Formula ...