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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to represent the mean with vertical line in a histogram created by hist function in R?
The value of mean is an important characteristic of the data to be represented by a histogram, therefore, one might want to plot it with the histogram. If the histogram is created by using hist function then we can create a vertical line on the histogram with the help of abline function by defining mean of the data for vertical argument v.Exampleset.seed(101) x
Read MoreHow to represent the legend in a plot created by using plot function with colored straight lines or stars in R?
A legend helps us to differentiate between the type of values or any another division of values in a data set. These legends can be represented in many ways and two of these ways are straight lines and stars. To represent the legend in a plot created by using plot function with colored straight lines or stars, we need to correct lty and pch arguments.ExampleConsider the below vectors −set.seed(199) x
Read MoreHow to create a frequency polygon in R?
Frequency polygons are the graphs of the values to understand the shape of the distribution of the values. They are useful in comparing different data sets and visualising cumulative frequency distribution of the data sets. In base R, we can use polygon function to create the frequency polygon but first we should create a line plot for the two variables under consideration.ExampleConsider the below vectors x and y −set.seed(999) x
Read MoreHow to reduce the size of the area covered by legend in R for a plot created by using plot function?
By default, the area covered by legends for a plot created by using plot function is of full size that is 1 (the area size has a range of 0 to 1, where 1 refers to the full size and 0 refers to none). To reduce the size, we can use cex argument with the legend function as shown in the below example.ExampleConsider the below vectors and the plot created between these two vectors −x
Read MoreHow to create a standard normal distribution curve with 3-sigma limits in R?
A standard normal distribution has mean equals to zero and the standard deviation equals to one. Therefore, when we plot it with three sigma limits, we have six points on the X-axis referring to the plus and minus around zero. If the limits are defined then the plotting can be shown with larger width and that will change the display of the curve. We can do this by creating a sequence for the length of the standard normal variable and its density.Consider the below vectors corresponding to the limits and density−x
Read MoreHow to get pagefile settings using PowerShell?
Pagefile also Known as Virtual Memory file in the Windows Operating system is a very useful part of the OS. It helps to reduce the burden on the Physical memory by storing some paging file in the file call Pagefile.sys. Generally, this file in windows OS is stored in C:\ unless it is modified.You can check the Pagefile settings in the Windows GUI usingSystem Properties → Advanced → Performance → Settings → Advanced → Virtual Memory → Change.We have made a few blocks and circles in the above pagefile properties image. We will see them one by one.First, to check ...
Read MoreHow to remove pagefile on the specific drive using PowerShell?
In this article, we have a pagefile set on E: (System managed) and we need to remove the pagefile from E: So in the below image once we remove it, the pagefile should be “No Paging File”.To do so using PowerShell, we need to filter the pagefile on a specific drive and need to run the below code.$pagefileset = Gwmi win32_pagefilesetting | where{$_.caption -like 'E:*'} $pagefileset.Delete()You may want to reboot the server after removing pagefile.To change the above settings on the remote computer, use -ComputerName parameter in the GetWMIObject class.
Read MoreHow to change pagefile settings from custom to system managed using PowerShell?
To change the pagefile settings to system managed, we need to set InitialSize and MaximumSize parameters to 0. In the below example, we have E: has custom pagefile, not system managed and we need to convert it to the system managed.$pagefileset = Gwmi win32_pagefilesetting | where{$_.caption -like 'E:*'} $pagefileset.InitialSize = 0 $pagefileset.MaximumSize = 0 $pagefileset.Put() | Out-NullNow when you check the pagefile setting on E: it should be System managed.To change the settings on the remote computer use -ComputerName parameter in the Get-WmiObject method.
Read MoreProgram to find N-th term of series 0, 2,1, 3, 1, 5, 2, 7, 3...in C++
In this problem, we are given a number N. Our task is to create a Program to find N-th term of series 0, 2, 1, 3, 1, 5, 2, 7, 3...in C++.Problem Description − We are given the Series −0, 2, 1, 3, 1, 5, 2, 7, 3...N TermTo find the Nth term of this series, we will formula the general term of the series and then find the Nth term.Let’s take an example to understand the problem, Input − N = 7Output − 2Solution Approach :To solve the problem and find the general formula for the series. We need ...
Read MoreProgram to find N-th term of series 0, 9, 22, 39, 60, 85, 114, 147, ...in C++
In this problem, we are given a number N. Our task is to create a Program to find N-th term of series 0, 9, 22, 39, 60, 85, 114, 147, …in C++.Problem Description − We are given the Series −0, 9, 22, 39, 60, 85, 114, 147, ....NtermsTo find the Nth term of this series, we will formula the general term of the series and then find the Nth term.Let’s take an example to understand the problem, Input − N = 6Output − 85Solution Approach:To find the general term of the series. Let’s observe the growth of the values of ...
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