Data Conversion on Data Prep Toolbox

Fix character encoding issues

Mon, 01 Jan 0001 00:00:00 +0000

Use this pattern when Japanese text becomes garbled after opening a CSV, or when a GIS or spreadsheet app fails to read the file correctly.

Solution

Identify the original encoding first, then convert the file into the encoding expected by the next tool. A fast converter makes it easy to validate both directions before sharing or importing the data.

Tool

dataprep.jp

Shift JIS ⇄ UTF-8 Converter

Convert character encoding between Shift JIS and UTF-8

change-character-encoding.dataprep.jp

Good fit for

Preparing CSV files for distribution
Fixing import errors in Japanese datasets
Moving files between different systems

Easily convert addresses to latitude/longitude

Mon, 01 Jan 0001 00:00:00 +0000

Use this pattern when you have addresses for stores or facilities, but need latitude and longitude before you can map or analyze them.

Solution

Convert addresses into coordinate columns first, then move on to visualization or spatial analysis. Batch geocoding is much more reliable and efficient than checking each point manually.

Tool

dataprep.jp

Address to Lat/Lon Converter

Geocoding tool for converting address lists into coordinates

address-to-latlon.dataprep.jp

Good fit for

Mapping store or facility locations
Running spatial analysis on address-based data
Avoiding manual coordinate lookup

Format and convert map data

Mon, 01 Jan 0001 00:00:00 +0000

Use this pattern when decimal precision or coordinate reference systems are inconsistent and your map data does not line up correctly in the next tool.

Solution

Standardize latitude/longitude formatting first, then convert the coordinate system if needed. Splitting the work into formatting and projection changes makes it easier to isolate the source of location errors.

Tools

dataprep.jp

Lat/Lon Formatter

Standardize latitude/longitude format and precision

latlon-formatter.dataprep.jp

dataprep.jp

Transform Coordinates

Convert the coordinate system of geographic files

transform-coordinates.dataprep.jp

Good fit for

Mixing map data from different coordinate systems
Normalizing latitude/longitude precision
Troubleshooting positional offsets