It is inevitable that words change their meanings over time but it is still interesting to know the English words the meanings of which became very different from what they mean originally.. You might be surprised to know that the words you’ll find here are mostly words that you use regularly. See my earlier question on this site.. R's tsoutlier package uses Chen and Liu's method for detection outliers. See below for the R code to detect changes in time series. over the course of time phrase. When is the right time to pass on these changes to your customers – immediately or waiting a while if you fear that by raising your selling price, customers might fade away? Visualised as a line graph, it would look like this: one value could be 3 days after the one before, which itself could be 2 weeks after that one). The length of time between values is not uniform (i.e. Explain carefully the opportunity costs of a mother's time, what may lead these to change over time, and what effects these changes have on family decisions. Semantic change can be influenced by a variety of factors, including culture, other languages, as well as the advancement of science and technology. ... (used with expressions for periods of time) during: He’s seen many changes in the course of his long life. Tsay's or Chen and Liu's procedures are popular time series outlier detection methods . The interest rate used for discounting is a rate that reflects an investor's opportunity cost of money over time, meaning that an investor wants to achieve a return at least as high as that of her next best investment. → time Examples from the Corpus changes over time • As well as differing from place to place, what is defined as crime changes over time. • Both types of data, however, are problematic in that the whole structure within which careers are established changes over time. There are obviously fluctuations in the cost price over time and this will affect at what price you can comfortably sell to make a profit. I have several values plotted over a period of time on a line graph. For some, the meaning has changed over centuries, while others are changing thanks to the more recent use of slang terms… Awful. You could use time series outlier detection to detect changes in time series. Centuries ago, this word was a short version of “full of awe”, and in the 1600s, it could mean “sublimely majestic” and was uttered as high praise to … Some words, however, become pejorative, coming to denote something worse. For the most part, there is some predictability in how words change over time, with them usually expanding in meaning. : a … Credit card debt is once again surging. SAS/SPSS/Autobox can also do this. Slowly the nation is being owned by massive amounts of debt (meaning banks have full control over the public if they wish to buy a home, car, or even go to college). Gradual change is the name of the game with inflation. ♢ The company faces some major challenges over the course of the next few years. Definition of over the course of time in the Idioms Dictionary. 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