List of countries by Human Development Index
If the relative strength index is below 50, it generally means that the stock's losses are greater than the gains. Poverty and Violence Disability and poverty Food insecurity. This website provides you with a guide to whole How to apply process. This situation tends to lower the ranking for some of the most advanced countries, such as the G7 members and others.
This is fully equivalent to the aforementioned exponential smoothing. If the average of D values is zero, then according to the equation, the RS value will approach infinity, so that the resulting RSI, as computed below, will approach The relative strength factor is then converted to a relative strength index between 0 and The smoothed moving averages should be appropriately initialized with a simple moving average using the first n values in the price series.
The RSI is presented on a graph above or below the price chart. The indicator has an upper line, typically at 70, a lower line at 30, and a dashed mid-line at Wilder recommended a smoothing period of 14 see exponential smoothing , i.
Wilder posited  that when price moves up very rapidly, at some point it is considered overbought. Likewise, when price falls very rapidly, at some point it is considered oversold. In either case, Wilder deemed a reaction or reversal imminent. The level of the RSI is a measure of the stock's recent trading strength. The slope of the RSI is directly proportional to the velocity of a change in the trend. The distance traveled by the RSI is proportional to the magnitude of the move.
Wilder believed that tops and bottoms are indicated when RSI goes above 70 or drops below Traditionally, RSI readings greater than the 70 level are considered to be in overbought territory, and RSI readings lower than the 30 level are considered to be in oversold territory. In between the 30 and 70 level is considered neutral, with the 50 level a sign of no trend. Wilder further believed that divergence between RSI and price action is a very strong indication that a market turning point is imminent.
Bearish divergence occurs when price makes a new high but the RSI makes a lower high, thus failing to confirm. Bullish divergence occurs when price makes a new low but RSI makes a higher low. Wilder thought that "failure swings" above 70 and below 30 on the RSI are strong indications of market reversals. If it falls below 72, Wilder would consider this a "failure swing" above Finally, Wilder wrote that chart formations and areas of support and resistance could sometimes be more easily seen on the RSI chart as opposed to the price chart.
The center line for the relative strength index is 50, which is often seen as both the support and resistance line for the indicator. If the relative strength index is below 50, it generally means that the stock's losses are greater than the gains. Taiwan's government calculated its HDI to be 0. Retrieved 14 September Pathways to Human Development p. Commission of the European Communities.
Retrieved 29 July United Nations Development Programme. Archived from the original on 3 April Retrieved 26 March Retrieved 19 February Journal of Socio-Economic Research. Retrieved 8 January Economics Working Papers, Retrieved 12 November Lists of subnational entities by Human Development Index rankings.
List of countries by Human Development Index. Economic classification of countries. Developed country Developing country Least Developed Countries World Bank high-income economy Newly industrialized country Heavily indebted poor countries. By country past and projected per capita per capita. By country future estimates per capita per capita per hour worked per person employed. Nominal, Atlas method per capita PPP per capita. Gross National Happiness Net material product Research and development spending.
Lists of countries by population statistics. Current population Current population United Nations. Past population United Nations estimates Past and future population 1 population milestones Future population. Current density Past and future population density Current real density based on food growing capacity.
Rather only a sequential search is performed, which takes O N time. A bitmap index is a special kind of indexing that stores the bulk of its data as bit arrays bitmaps and answers most queries by performing bitwise logical operations on these bitmaps. In contrast, the bitmap index is designed for cases where the values of a variable repeat very frequently.
For example, the sex field in a customer database usually contains at most three distinct values: For such variables, the bitmap index can have a significant performance advantage over the commonly used trees. A dense index in databases is a file with pairs of keys and pointers for every record in the data file. Every key in this file is associated with a particular pointer to a record in the sorted data file.
In clustered indices with duplicate keys, the dense index points to the first record with that key. A sparse index in databases is a file with pairs of keys and pointers for every block in the data file. Every key in this file is associated with a particular pointer to the block in the sorted data file. In clustered indices with duplicate keys, the sparse index points to the lowest search key in each block. A reverse-key index reverses the key value before entering it in the index.
Reversing the key value is particularly useful for indexing data such as sequence numbers, where new key values monotonically increase. Indices can be implemented using a variety of data structures. In Microsoft SQL Server , the leaf node of the clustered index corresponds to the actual data, not simply a pointer to data that resides elsewhere, as is the case with a non-clustered index. An index is typically being accessed concurrently by several transactions and processes, and thus needs concurrency control.
While in principle indexes can utilize the common database concurrency control methods, specialized concurrency control methods for indexes exist, which are applied in conjunction with the common methods for a substantial performance gain. In most cases, an index is used to quickly locate the data record s from which the required data is read. In other words, the index is only used to locate data records in the table and not to return data. A covering index is a special case where the index itself contains the required data field s and can answer the required data.
However, an index on ID, Name contains the required data field and eliminates the need to look up the record. Covering indexes are each for a specific table. To reduce such index size, some systems allow including non-key fields in the index. Non-key fields are not themselves part of the index ordering but only included at the leaf level, allowing for a covering index with less overall index size.
Indexes are one of the physical parts of database conception among others like storage tablespace or filegroups. From Wikipedia, the free encyclopedia. Redirected from Index database. Hector Garcia-Molina , Jeffrey D.
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