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# what is margin in apply r

Details. EBITDA Margin = EBITDA / Net Sales . Margins are formed in the order in which dimensions are specified in margin. Sales margin is calculated the same way that gross profit margin, also known as margin, is. Usage tapply(X, INDEX, FUN = NULL, …, default = NA, simplify = TRUE) Arguments X. an R object for which a split method exists. Names of the list elements will appear as levels in dimnames of the result. When I look at the source of R Packages, i see the function sweep used quite often. The Family of Apply functions pertains to the R base package, and is populated with functions to manipulate slices of data from matrices, arrays, lists and data frames in a repetitive way.Apply Function in R are designed to avoid explicit use of loop constructs. The margin argument takes a number or a vector of numbers, but it can be a bit confusing. In the case of apply(), there is no difference. Favorite Answer. It is fairly straightforward to set the margins of a graph in R by calling the par() function with the mar (for margin!) If the calls to FUN return vectors of different lengths, apply returns a list of length prod(dim(X)[MARGIN]) with dim set to MARGIN if this has length greater than one. There are other functions in the apply family (sapply, mapply, rollapply, etc.) Rui Barradas Hello, 2L is an integer, 2 might be or not. I present it here in its original form. Gross margin is a company’s net sales minus its cost of goods sold . Buying on margin amplifies both gains and losses. If each call to FUN returns a vector of length n, then apply returns an array of dimension c(n,dim(x)[MARGIN]) if n > 1.If n equals 1, apply returns a vector if MARGIN has length 1 and an array of dimension dim(x)[MARGIN] otherwise.. If the calls to FUN return vectors of different lengths, apply returns a list of length prod(dim(X)[MARGIN]) with dim set to MARGIN if this has length greater than one. The MARGIN argument means exactly the same thing in both functions and that is row-wise operation. LMN company declared a net profit, before taxes and interest, of $3M for year-end 2015. Adam J. Lv 6. In Word Online, Word 2010 and Word 2007, the Layout tab is labeled as Page Layout. To learn more, launch our online finance courses now! Similarly, the phase margin is the difference between the phase of the response and –180° when the loop gain is 1.0. Apply a function to each cell of a ragged array, that is to each (non-empty) group of values given by a unique combination of the levels of certain factors. margin: vector of dimensions over which to form margins. I am printing the matrix below so that it is easy to visually compare with apply and sweep later on: > m [,1] [,2] [1,] 1 4 [2,] 2 5 [3,] 3 6 Keywords iteration, category. The figure can vary dramatically by . … margin. The margins are numbered the same way as in the apply() function. MARGIN: We want to apply the operation by row. Margins are formed in the order in which dimensions are specified in margin. If the function is simple, you can create it right inside the arguments for apply. It is calculated by dividing the operating profit by total revenue and expressing as a percentage. R tapply, lapply, sapply, apply, mapply functions usage. To change the font size of text elements, use cex (short for character expansion ratio). yes/no. Value. x: an array: margin: index number (1 for rows, etc.) Profit margin gauges the degree to which a company or a business activity makes money, essentially by dividing income by revenues. The steps to change margins remain the same. Instead, you need a package called modeest in your library. FUN. All possible values for margin? Usage margin.table(x, margin) Arguments. Base R does have a function called mode(), but it’s for something much different. Answer Save. Relevance. Default value: 0: Inherited: no: Animatable: yes, see individual properties. There are properties for setting the margin for each side of an element (top, right, bottom, and left). But why? Margin can be even greater than 2, if we work with variables of dimension greater than two. margin.table {base} R Documentation: Compute table margin Description. … Operating Profit Margin is a profitability or performance ratio that reflects the percentage of profit a company produces from its operations, prior to subtracting taxes and interest charges. Let’s go through the code step by step: x: Our example matrix, which is called data. To reduce the text size, use a cex value of less than 1; to increase the text size, use a cex value greater than 1. How to calculate proportions . In other words, the gain margin is 1/g if g is the gain at the –180° phase frequency. Value. If the calls to FUN return vectors of different lengths, apply returns a list of length dim(x)[MARGIN].. See Also. Typically vector-like, allowing subsetting with [. The Apply family comprises: apply, lapply , sapply, vapply, mapply, rapply, and tapply. Edit: This post originally appeared on my WordPress blog on September 20, 2009. Similar functions include lapply(), sapply(), mapply() and tapply().These functions are more efficient than loops when handling data in batch. (On the Packages tab, select Install, and then in the Install dialog box, type modeest in the Packages box and click Install. Therefore, a high ratio can result from: Efficient management; Low costs (expenses) Strong pricing strategies . Dividing that net profit by the sales price gives you the sales margin as a percentage. The horizontal ruler displayed below the Word menu provides another way to change the margins in your document. –function is the function you want to apply to the elements of your variable. This is really just apply(x,margin,sum) packaged up for newbies. It allows users to apply a function to a vector or data frame by row, by column or to the entire data frame. –margin specifies if you want to apply by row (margin = 1), by column (margin = 2), or for each element (margin = 1:2). If n is 0, the result has length 0 but not necessarily the ‘correct’ dimension. If the margin property has two values: margin: 10px 5px; top and bottom margins are 10px; right and left margins are 5px; If the margin property has one value: margin: 10px; all four margins are 10px; Note: Negative values are allowed. What if instead, I wanted to find n-1 for each column? In the length-1 case, can be a function instead of a list of one. Table 2: Example Matrix After Simple Application of sweep in R. As you can see, all zeros where replaced by 5. Compute the sum of table entries over a given index. After the initial transaction, maintenance rules set by the self-regulatory organizations, such as the New York Stock Exchange (NYSE) and NASD, apply. Example Calculation. Expressed as a percentage, profit margin … After you determine the cost of a product, you can subtract this from the sales price to get the net profit. 1 decade ago. The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple examples that you can apply to gain insight into your own data.. Today, I will discuss the tapply function. The default value is 1. Apply for option trading with this account. The gross margin reveals the amount that a business earns from the sale of its products and services, before the deduction of any selling and administrative expenses . INDEX. Using apply in R. We start with the godfather of the family, apply, which operates on arrays (for simplicity we limit here to 2D arrays, aka, matrices). list of the same length as margin, each element of the list being either a function or a list of functions. CSS Margins. yes/no. AccountingTools . The apply() family pertains to the R base package and is populated with functions to manipulate slices of data from matrices, arrays, lists and dataframes in a repetitive way. Depreciation and amortization total $100,000. FUN: list of the same length as margin, each element of the list being either a function or a list of functions. Margin Calls A margin call occurs when the investments in the account and the cash decrease in value and fall below the minimum maintenance margin amount. How to change font size of text and axes on R plots. For example, par(mar=c(5.1,4.1,4.1,2.1) sets the bottom, left, top and right margins respectively of the plot region in number of lines of text. Below are a few basic uses of this powerful function as well as one of it’s sister functions lapply. The CSS margin properties are used to create space around elements, outside of any defined borders.. With CSS, you have full control over the margins. The … Because we are using columns, MARGIN = 2. apply(my.matrx, 2, length) ## [1] 10 10 10. Therefore, we set MARGIN = 1. Sometimes it's used when a simpler function would have sufficed (e.g., apply), other times, it's impossible to know exactly what it's is doing without spending a fair amount of time to step through the code block it's in. 8 Answers. Gross margin is a company's net sales revenue minus its cost of goods sold (COGS). apply() function applies a function to margins of an array or matrix. Margin is the money borrowed from a broker to purchase an investment and is the difference between the total value of investment and the loan amount. The initial margin requirement is set by federal law and varies from product to product. Buying on margin means you are investing with borrowed money. If your account falls below the maintenance margin… The apply function in R is used as a fast and simple alternative to loops. vector of dimensions over which to form margins. The relevant marginal table. To add the column margin, you need to set margin to 2, but this column margin contains the row totals. If n is 0, the result has length 0 but not necessarily the “correct” dimension. Any possible(*) combination of the dimensions of 'x' in apply(x, margin, function) (*) non-null. To apply a predefined margin, select Layout > Margins and choose the predefined margin you want to use. For example, to buy stock on margin, you must have at least 50% of the purchase price in your account. what does this mean? These functions allow crossing the data in a number of ways and avoid explicit use of loop constructs. argument. If n equals 1, apply returns a vector if MARGIN has length 1 and an array of dimension dim(X)[MARGIN] otherwise. So 1 stands for rows and 2 for columns. Gm is the amount of gain variance required to make the loop gain unity at the frequency Wcg where the phase angle is –180° (modulo 360°). Apply for margin within this account. The apply() Family. If n equals 1, apply returns a vector if MARGIN has length 1 and an array of dimension dim(X)[MARGIN] otherwise. There isn’t a function in R to do this automatically, so I can create my own function. R apply Functions. Use the Ruler to Adjust Margins in Word . Margin: Allows you to borrow money from your broker to invest with the money you place into your account as collateral. A high net profit margin means that a company is able to effectively control its costs and/or provide goods or services at a price significantly higher than its costs. I have been confused with sweep many times in the past but I think you are confused with apply.. Net sales reported in the income statement shows an amount of $5M. To change the margins in your account falls below the Word menu provides another way to change font. Rui Barradas Hello, 2L is an integer, 2 might be or not function to vector. 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