readArgos(trip)
readArgos()所属R语言包:trip
Read Argos "DAT" files
雅高“DAT”文件
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Return a (Spatial) data frame of location records from raw Argos files. Multiple files may be read, and each set of records is appended to the data frame in turn. Basic validation of the data is enforced by default.
返回(空间)数据框的位置记录,从原材料的阿尔戈斯文件。可以读取多个文件,以及每个组的记录附加到数据框反过来。默认情况下,执行基本数据验证的。
用法----------Usage----------
readArgos(x, correct.all = TRUE, dtFormat = "%Y-%m-%d %H:%M:%S",
tz = "GMT", duplicateTimes.eps = 0.01, p4 = "+proj=longlat +ellps=WGS84", verbose = FALSE)
参数----------Arguments----------
参数:x
vector of file names of Argos data
雅高数据向量的文件名
参数:correct.all
logical - enforce validity of data as much as possible? (see Details)
逻辑 - 执行有效性的数据尽可能地? (详细)
参数:dtFormat
the DateTime format used by the Argos data "date" and "time" pasted together
DateTime格式粘贴在一起使用雅高数据“日期”和“时间”
参数:tz
timezone - GMT/UTC is assumed
时区 - GMT / UTC假设
参数:duplicateTimes.eps
what is the tolerance for times being duplicate?
时间复制宽容是什么?
参数:p4
PROJ.4 projection string, "+proj=longlat +ellps=WGS84" is assumed
投影PROJ.4字符串,“+ PROJ longlat + ellps = WGS84”假定
参数:verbose
if TRUE, details on date-time adjustment is reported
如果为TRUE,报告详细信息,日期时间调整
Details
详细信息----------Details----------
Basic validation checks for class trip are made, and enforced based on correct.all:
基本验证检查类trip,和执行的基础上correct.all:
No duplicate records in the data, these are simply removed. Records are ordered by DateTime ("date", "time", "gmt") within ID ("ptt"). No duplicate DateTime values within ID are allowed: to enforce this the time values are moved forward by one second - this is done recursively and is not robust.
无重复的记录中的数据,这些是简单地删除。 ID(“一键通”)日期时间(“日期”,“时间”,“GMT”)内的记录进行排序。 ID无重复DateTime值内是允许的:执行此一秒向前移动的时间值 - 这样做是递归的,是不稳健的。
If validation fails the function will return a SpatialPointsDataFrame. Files that are not obviously of the required format are skipped.
如果验证失败,该函数会返回一个SpatialPointsDataFrame。所需要的格式的文件之间没有明显的被跳过。
Argos location quality data "class" are ordered, assuming that the available levels is levels = c("Z", "B", "A", "0", "1", "2", "3").
雅高的位置,质量数据“类”是有序的,假设可用的级别是levels = c("Z", "B", "A", "0", "1", "2", "3")。
A projection string is added to the data, assuming the PROJ.4 longlat - if any longitudes are greater than 360 the PROJ.4 argument "+over" is added.
投影串添加到数据,假设PROJ.4 longlat - 如果任何经度大于360 PROJ.4参数“+”添加过。
值----------Value----------
A trip object, if all goes well, or simply a SpatialPointsDataFrame.
Atrip对象,如果一切顺利的话,或者干脆SpatialPointsDataFrame。
警告----------Warning ----------
This works on some Argos files I have seen, it is not a guaranteed method and is in no way linked officially to Argos.
阿尔戈斯的文件,我已经看到这部作品,它是不是一个可靠的方法,是在没有正式与雅高。
(作者)----------Author(s)----------
Michael D. Sumner
参考文献----------References----------
http://www.argos-system.org/manual/. Specific details on the PRV ("provide data") format were found here http://www.cls.fr/manuel/html/chap4/chap4_4_8.htm.
参见----------See Also----------
trip, SpatialPointsDataFrame, adjust.duplicateTimes, for manipulating these data, and argos.sigma for relating a numeric value to Argos quality "classes". sepIdGaps for splitting the IDs in these data on some minimum gap.
trip,SpatialPointsDataFrame,adjust.duplicateTimes,操纵这些数据,和argos.sigma雅高品质的“类”有关的数字值。 sepIdGaps分裂的ID在这些数据上的一些最低限度的差距。
order, duplicated, , ordered for general R manipulation of this type.
order,duplicated,ordered一般研究这种类型的操作。
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注:
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