Load data from string file
Overview
Function: STATS RELOAD
You can use this function to calculate statistical values from data
within a string file.
Procedure
- Choose File > Load data from string file or click the
icon in the Basic Statistics window.
| Form Feature |
Description |
| Location, Id range, String range |
Specify the string files and strings containing the data to be processed.
Each file in the range has the values combined prior to performing any statistics.
For example geochem2.str, geochem4.str and geochem6.str can be
This is different in trend analysis where the values for the three file would be treated separately and three statistical analysis reports created, one for each file.
|
| D Field, Name, Minimum value, Maximum value |
Description fields (D1 - D100) to be processed as variables. Options are available for naming the description fields for reporting and display purposes, as well as constraining the samples selected to those whose values lie between specified minimum and maximum values. Samples with values in the designated description field which are below the minimum or above the maximum for that field will be ignored. If minimum and/or maximum values are unspecified (i.e. left blank) no minimum and/or maximum value constraints are applied as appropriate. For example, if neither a minimum nor a maximum value is specified, all samples are selected. |
| Histogram bins - Number, Width |
A histogram may be created using either the
Number of bins (or classes) or Bin
width. The maximum number minus the minimum
number divided by number of bins gives the bin width
across the X-axis.
Valid entries for Number of bins are
any positive whole integer 3 or greater.
Valid entries for Width of bins are
any positive real number equal to 0.001 or greater.
|
| Include Coordinate Graphs? |
Check this box to load X, Y and Z coordinates as
variables. Checking this box will use more memory but will
allow plots such as gold vs Z (depth) and saving of the
data to a string file.
Leave this box unchecked if you
only want to calculate statistics of Description fields
(D1, D2, D3...). |
- Fill in the fields on the Basic tab.
- Click the Advanced tab.
| Form Feature |
Description |
| Minimum XYZ, Maximum XYZ |
The data may be constrained geographically by specifying minimum and/or maximum X, Y and/or Z coordinates. Samples are constrained only by those fields specified. For example, specifying a minimum Y coordinate of 10000 and leaving the rest of the fields blank will result in all samples whose Y coordinate is greater than or equal to 10000 being selected regardless of their X or Z coordinates. |
| Treat negative values as |
ZEROS: All negative samples are transformed to zero
before statistical calculations are performed.
UNDEFINED: Any negative sample is not included in the statistical calculations.
NEGATIVE: All negative samples are included in the statistical calculations with their original value. |
- Fill in the fields on the Advanced tab.
- Click Apply to plot the frequency distribution of raw values of the first specified description field.
Basic Statistics form.